Free tools
.htaccess Redirect Generator: 301 Redirects, https, www and 404 Page
Turn a list of old and new URLs into Apache 301 redirects, force https and www, hide .html, and avoid redirect loops.
Free tools help articles
Step-by-step help for every free tool on Infinity: how to use it, what each option means, and how to fix the error messages people meet most often.
- How to use each tool
- Error messages explained
- PDF, image and voice tools
- Calculators and converters
- Privacy: files stay on your device
Can’t find your answer? Search all articles or contact support.
Free tools
2FA Code Generator: Codes Not Accepted and Where to Find Your Key
Fix rejected authenticator codes, find your secret key, and keep 2FA keys safe.
Free tools
A Tool Says “Could Not Load” or Won’t Start
Fix free tools that don’t appear, show “Could not load” or “This tool could not start”.
Free tools
AC Size Calculator: 1, 1.5 or 2 Ton for Your Room?
Choose the right AC tonnage for a room from area, sun, people and kitchen, and when to go one size up.
Free tools
Accessibility Checker: Find WCAG 2.2 Problems in Your HTML
How to check a page for accessibility: missing alt text, unlabelled form fields, nameless buttons, skipped headings, blocked zoom and low contrast.
Free tools
Add a WhatsApp Chat Button to Your Website or Blogger: Help
Put a floating WhatsApp button on any website, Blogger or WordPress, and fix a button that doesn’t appear or opens the wrong number.
Free tools
Add Line Numbers: Numbered Lists, Quotes and Excel Columns
Number lines, skip blank ones, pad numbers, and wrap lines in quotes for SQL or code.
Free tools
Add Page Numbers to PDF: Position, Style and Skipping the Cover
Number PDF pages in any corner, as 1, Page 1 or Page 1 of N, start from any number, skip cover pages, and number books on the outside corner.
Free tools
Add Watermark to PDF: Text or Logo on Every Page
Stamp DRAFT, CONFIDENTIAL, your name or a logo on PDF pages, choose layout and strength, and fix common watermark problems.
Free tools
Address Label Printer: Label Sheets and Envelopes
Print addresses on standard label sheets (A4 21, 14, 8, 24, 65; Letter 30, 10, 6) or straight onto DL, C5, C6 and #10 envelopes.
Free tools
Affidavit and Declaration Formats: Name Change, Address, Date of Birth
Prepare editable affidavit and declaration text for name change, address, date of birth, gap year, lost documents, and UK and US styles.
Free tools
Age Calculator: Exact Age in Years, Months and Days
Find exact age on any date for forms and eligibility, total days and weeks, and the day of the week you were born.
Free tools
Age Difference Calculator: Years, Months and Days Between Two People
Find the exact age gap between two people in years, months, weeks and days, and who is older.
Free tools
Age on Other Planets: Your Age in Mercury, Mars and Jupiter Years
See how old you would be on other planets, why the numbers differ, and use it for space lessons.
Free tools
AI Image Upscaler: Enlarge Small Photos 2× or 4× Without Blur
Make small or low-resolution photos, logos and screenshots 2× or 4× bigger with an AI model on your device, and what to do when the AI can’t run.
Free tools
Alphabets of the World: Hear and Learn 14 Writing Systems
Explore Spanish, Arabic, Russian, Greek, Hebrew, Bengali, Tamil, Korean, Japanese, Chinese pinyin and more, with sounds.
Free tools
Anagram Solver and Word Unscrambler: Every Word From Your Letters
Find every English word you can make from your letters, with blank tiles and filters, and check if two words are anagrams.
Free tools
Angle Converter: Degrees, Radians, Gradians, Turns and Mils
Convert angles between units, write degrees-minutes-seconds, and pick the right unit for calculators and code.
Free tools
Animals and Their Names: Sounds, Baby Names, Homes and a Quiz
How to use Animals and Their Names: browse 45 animals by group, hear the sound, baby name, home and a fun fact in English and Hindi, then take the quiz.
Free tools
Annuity Calculator: Pension From a Lump Sum and Tax
Work out the pension from buying an annuity, compare payout frequencies, and understand annuity tax.
Free tools
API Request Tester: Send GET, POST, PUT and DELETE Requests
Test an API in the browser with method, headers and JSON body, see status, time, headers and formatted response, and fix CORS and auth errors.
Free tools
Application Generator: Leave, Certificate, Bank and Complaint Applications
Write school, office, bank and complaint applications in English or Hindi, fill in the details, and print or save them.
Free tools
Are My Files Uploaded? How the Free Tools Keep Files Private
The GroupChatOn tools work inside your browser: your PDFs, photos and text never leave your device.
Free tools
Area Calculator: Rooms, Plots, Circles and Irregular Land
Find the area of rectangles, triangles, circles and irregular four-sided plots in sq ft, sq m, gaj, acres and hectares.
Free tools
Atal Pension Yojana Calculator: Contribution for ₹1,000–₹5,000 Pension
Find the APY monthly contribution for your joining age and chosen pension, and who can join.
Free tools
Attendance Register: Daily Attendance and Monthly Register With Percentages
Mark daily attendance for staff, students or tuition batches with P, A, L and H, and download a monthly register with percentages.
Free tools
Audio Converter: MP3, M4A, WAV, OGG, Opus and FLAC
Convert one or many audio files between MP3, M4A, WAV, OGG, Opus and FLAC, choose quality and mono, and download several as a ZIP.
Free tools
Audio Trimmer and Ringtone Maker: Cut a Song or Recording
Cut part of any song or recording on a waveform, add fade in and fade out, preview it and save as MP3 or WAV; make a 30-second ringtone.
Free tools
Average Calculator: Mean, Median, Mode, Range and Standard Deviation
Find the average and other statistics of a list of numbers, and choose between mean and median.
Free tools
Baby Name Ideas: 300+ Names With Meanings From Many Cultures
Browse baby names with meanings from Hindu, Sikh, Muslim, English, Hebrew, Irish, Spanish, Japanese, African and more cultures, and build a shortlist.
Free tools
Balloon Pop Typing (Kids): A Gentle First Keyboard Game
How to play Balloon Pop Typing: choose ABC, abc, Home row or 123 and Slow, Medium or Fast, pop 25 balloons, use the tap pad, and get stars.
Free tools
Barcode Generator: Make EAN-13, UPC, Code 128 and Other Barcodes
How to make product, stock and ID barcodes with the check digit added for you, choose the right type, and download PNG or SVG.
Free tools
Base64 Encode and Decode: Text, Emoji, URL-Safe and Errors
Encode text to Base64 and back, handle emoji and Hindi correctly, use URL-safe Base64, and fix “not valid Base64”.
Free tools
Battery Life Calculator: How Long a Battery Will Run Your Device
Estimate battery run time from capacity in mAh or Ah and the device’s current, with realistic usable capacity.
Free tools
Battery Status: Level, Charging and Time Left From the Browser
See your battery level, whether it’s charging, and time to full or empty where your browser shares it.
Free tools
Beam Load Calculator: Bending Moment, Shear and Deflection
Work out bending moment, shear force and deflection for simply supported and cantilever beams, and their limits.
Free tools
Big Full-Screen Clock and Timer: For Classrooms, Exams, Gyms and Stages
Show a huge clock, countdown timer or stopwatch that fills the screen, for exams, classes, workouts, stages and meetings.
Free tools
Big Number Calculator: Exact Arithmetic With Huge Whole Numbers
Add, subtract, multiply, divide and find powers of whole numbers of any length, exactly, with no rounding.
Free tools
Bike Insurance Calculator: Two-Wheeler IDV, NCB and Third-Party Premium
Estimate two-wheeler insurance premium with IDV, NCB, own-damage rate and the IRDAI third-party rates.
Free tools
Bill and Renewal Reminders: Never Miss a Due Date
Keep electricity, recharge, card, EMI, insurance and renewal dates in one list with days left, mark paid, and add alerts to your phone calendar.
Free tools
Birthday Calculator: Day You Were Born, Star Sign and Chinese Zodiac
See the weekday you were born, days lived, next birthday countdown, star sign and Chinese zodiac animal.
Free tools
Blood Alcohol Calculator: Estimate BAC (and Why Not to Drive)
Estimate blood alcohol concentration from drinks, weight and time, understand standard drinks, and the drink-driving limit.
Free tools
Blur Faces and Number Plates: Hide Private Details Before Posting
Hide faces, number plates, addresses or screens in a photo with blur, pixelate or a black bar, at full quality.
Free tools
BMI Calculator: Categories, Asian Cut-Offs and What BMI Can’t Tell
Work out BMI in metric or imperial units, use the WHO Asia cut-offs, and understand the limits of BMI.
Free tools
BMR Calculator: Calories at Rest and Daily Calories by Activity
Work out your basal metabolic rate with Mifflin-St Jeor, pick the right activity level, and use it to lose or gain weight.
Free tools
Body Fat Calculator: Measuring With a Tape (US Navy Method)
Estimate body fat percentage from neck, waist and hip measurements, measure correctly, and read the categories.
Free tools
Body Parts for Kids: Tap, Hear and Play “Touch the…” in English or Hindi
How to use Body Parts: tap the drawing to hear each part in English or Hindi, play Touch the… and learn the five senses, with tips for young children.
Free tools
Book Keeper (Khata): Udhar, Statements and WhatsApp Reminders
Keep a digital khata of what customers owe and what you owe suppliers, share statements, and send WhatsApp payment reminders.
Free tools
Books and Reading Log: Want to Read, Reading, Finished and a Yearly Goal
Keep lists of books to read, reading and finished, track page progress, rate and note books, and set a yearly reading goal.
Free tools
Border Radius Generator: Rounded Corners and Blob Shapes in CSS
Round each corner separately in px or %, make organic blob shapes with 8-value border-radius, and copy the CSS.
Free tools
Box Shadow Generator: Soft, Floating, Inner and Glow Shadows in CSS
Design a CSS box-shadow with offset, blur, spread, colour and opacity, start from presets, and copy the code.
Free tools
BP, Sugar and Weight Log: Readings, Charts and a Report for Your Doctor
Record blood pressure, blood sugar and weight readings with notes, see charts and 30-day averages, and download a report for your doctor.
Free tools
Braille Translator: Capitals, Numbers and Printing Braille
What the ⠠ and ⠼ signs mean, why some characters stay as they are, and how to get real raised braille.
Free tools
Brain Teasers: How to Play and Understand the Tricky Answers
How to play our 30+ brain teasers for adults: probability puzzles, clever sums, words and rebus puzzles, with hints and clear explanations.
Free tools
Brain Training: How to Play the Memory, Focus and Speed Games
How to play the three brain games: Memory (remember squares), Focus (colour-word Stroop test) and Speed (60-second maths), and scoring.
Free tools
Break-even Calculator: Units and Sales Needed to Cover Costs
Find how many units you must sell to cover fixed costs, understand contribution margin, and plan prices.
Free tools
Breathing Exercise: Box Breathing, 4-7-8 and Calm Breathing
Follow an animated circle for box breathing, 4-7-8, 4-6 calm or coherent breathing, with gentle tones, to settle nerves.
Free tools
Brick Calculator: Bricks and Cement for a Wall
Work out the number of bricks and approximate mortar cement for a wall in 9-inch or 4.5-inch thickness.
Free tools
Budget Calculator (50/30/20): Needs, Wants and Savings
Split your take-home pay with the 50/30/20 rule, adjust it for your city and situation, and stick to a budget.
Free tools
Bulk File Renamer: Rename Many Files at Once With a Pattern
How to rename a folder of photos or documents with {name}, {n}, {date}, {today} and {ext}, find and replace, change case and spaces, and download a ZIP.
Free tools
Bulk WhatsApp Links: Personal Links for a Whole List (Without Getting Banned)
Turn a list of names and numbers into personalised click-to-chat links, fix numbers that are skipped, and stay within WhatsApp’s rules.
Free tools
CAGR Calculator: Average Yearly Growth of an Investment or Business
Work out compound annual growth rate from start and end values, and why CAGR is better than simple average return.
Free tools
Calendar Reminder Maker: Add Reminders to Google, Apple or Outlook Calendar
Make a reminder for a bill, birthday, medicine or meeting that repeats if you want, and add it to Google Calendar, Apple Calendar, Outlook or your phone’s alarm in one tap.
Free tools
Calendar With Holidays: Month View, Week Numbers and Notes
See any month with national holidays, Easter dates, week numbers and your own notes per day.
Free tools
Calorie Calculator: Calories to Maintain, Lose or Gain Weight
Work out daily calories to keep, lose or gain weight, choose your activity level honestly, and lose weight safely.
Free tools
Calories Burned Calculator: Walking, Running, Yoga, Cricket and More
Estimate calories burned in 16 activities from your weight and time, and why the number is only a guide.
Free tools
Car Insurance Calculator: IDV, No-Claim Bonus and Premium
Estimate car insurance premium in India with IDV by age, NCB, own-damage rate and third-party premium.
Free tools
Car Loan Calculator: On-Road Price, Down Payment and Total Cost
Work out a car loan EMI from the on-road price and down payment, include the processing fee, and see the total cost of the car.
Free tools
Card Number Checker: “Not a Valid Number” and Card Safety
Why a card number fails the check, what the tool can and cannot tell, and staying safe from card fraud.
Free tools
Case Converter: UPPER, lower, Title, Sentence, camelCase and More
Change text to the case you need, understand Title Case and Sentence case rules, and undo a change.
Free tools
Certificate Maker: Certificates for Students, Staff and Events
Make printable certificates for achievement, participation, merit and more, and type many names to get one certificate for each person.
Free tools
Change Audio Speed and Pitch: Slow Down Songs, Speed Up Lectures
Speed up or slow down audio from 0.5× to 2× without changing pitch, or shift pitch by semitones, and save as WAV.
Free tools
Character Limit Checker: X, Instagram, LinkedIn, YouTube, SMS and SEO at Once
Check text against 20+ limits at once, including X posts, Instagram captions, LinkedIn, YouTube titles, SMS parts and Google title and description.
Free tools
Checkers (Draughts): Rules, Forced Captures, Kings and Playing the Computer
How to play checkers online: moving and jumping, compulsory captures, multi-jumps, kings, computer levels and draw rules.
Free tools
Chess: How to Play the Computer or a Friend, Promote, Undo and Copy the Game
How to play chess online with full rules: legal moves, promotion, check and draws, computer levels and colour, Undo, Flip board and PGN.
Free tools
Child Height and Weight Percentile: WHO Growth Charts 0–19 Years
Find a child’s height and weight percentile and z-score for age from WHO growth standards, and understand what percentiles mean.
Free tools
Child Medicine Dose Calculator: Paracetamol and Ibuprofen by Weight
Work out a child’s paracetamol or ibuprofen dose in ml from weight and syrup strength, and stay safe.
Free tools
chmod Calculator: File Permissions 755, 644 and What They Mean
Work out chmod numbers and letters, choose safe permissions for web files, folders and keys, and decode a permission.
Free tools
Clean a Messy Phone Number List for WhatsApp, Excel or SMS
Turn numbers in any format into clean international numbers, remove duplicates, and fix numbers marked for checking.
Free tools
Code Beautifier: Make Minified JavaScript, CSS, HTML, JSON and SQL Readable
How to beautify minified or messy code with automatic language detection and 2-space, 4-space or tab indents, and what it cannot restore.
Free tools
Code Minifier: Minify JavaScript, CSS and HTML Safely
Shrink JS with Terser, CSS and HTML, see the size saved, and fix “could not minify” errors and broken pages.
Free tools
Code Typing Practice: Brackets, Symbols and Indents in Six Languages
How to use Code Typing Practice: choose JavaScript, Python, HTML, CSS, SQL or Java, type snippets with auto-indent after Enter, and read speed and symbol counts.
Free tools
Coin Flip: Fair Heads or Tails, and Flipping 10 or 100 Times
Flip a fair virtual coin, run 10 or 100 flips to see the score, and why streaks happen.
Free tools
Color Converter and Contrast Checker: HEX, RGB, HSL and Readable Text
Convert colours between HEX, RGB, HSL, HSV and CMYK, and check whether text colours pass WCAG contrast.
Free tools
Colour Palette Generator: Harmonious Palettes From One Colour
Create analogous, complementary, triadic and monochrome palettes from a base colour, and copy HEX or CSS variables.
Free tools
Colour Picker from Image: HEX, RGB and Palette From Any Picture
Tap any pixel of a picture to get its HEX, RGB, HSL and CMYK codes, pick from anywhere on screen, and see the picture’s main colours.
Free tools
Colour Vision Test: Screen for Red-Green and Blue-Yellow Differences
Read hidden numbers in coloured dot plates to screen for red-green and blue-yellow colour vision differences.
Free tools
Colouring Pages and Drawing Pad: Tap to Colour, Draw and Save as a Picture
How to use Colouring Pages and Drawing Pad: tap to fill ten pictures, Undo, try a sample, draw with brush sizes and eraser, and save art as a PNG.
Free tools
Compare PDF: Find Every Change Between Two Versions
Compare two PDF versions of an agreement, quotation or report: removed words in red, added words in green, and changed areas marked on each page.
Free tools
Compass: Find North, Facing Directions and Follow a Bearing
Use your phone as a compass with degrees and 16 directions, lock a bearing to follow, and avoid magnetic interference.
Free tools
Compound Interest Calculator: Compounding Frequency and Monthly Additions
See how money grows with compound interest, choose yearly to daily compounding, and add a monthly deposit.
Free tools
Compress PDF: Get Under 1 MB, 500 KB or 200 KB for Forms and Email
Shrink a PDF on your device with Light, Strong or Smallest compression, choose the right level, and fix files that won’t get smaller.
Free tools
Compress Video: Make Videos Small Enough for WhatsApp and Email
Shrink a video by quality level or to a target size in MB, lower the resolution to 720p or 480p, and fix results that don’t get smaller.
Free tools
Concrete Calculator: Cement Bags, Sand and Aggregate for a Slab
Work out concrete volume and cement bags, sand and aggregate for nominal mixes like 1:2:4, and allow for wastage.
Free tools
Contact QR Code (vCard): Share Your Details in One Scan
How to make a vCard QR code for a business card or counter, which fields to fill, download PNG or .vcf, and fix a code that is too dense.
Free tools
Cooking Measurement Converter: Cups to Grams for Flour, Sugar, Atta and More
Convert cups and spoons to grams for 17 ingredients, understand why a cup of flour and sugar weigh differently, and measure accurately.
Free tools
Copy and Paste Symbols: ₹, °, ✓, ©, ™, Arrows and Maths
Tap to copy currency signs, degrees, ticks, ©, ™, arrows, maths and Greek letters, collect several, and see their Unicode codes.
Free tools
Countdown to a Date: Days, Hours, Minutes and Seconds Left
Count down to exams, weddings, trips or birthdays with a live countdown, save several, and share on WhatsApp.
Free tools
Counting 1 to 100: Count Pictures, “How Many?” and a 1–100 Chart
Count pictures in rows of ten, play “How many?”, and explore a 1–100 chart with counting in 2s, 5s and 10s.
Free tools
Cover Letter Generator: A Polished Cover Letter in Two Minutes
Fill a short form for your situation, get a polished cover letter for your job application, and edit, copy, print or download it.
Free tools
Credit Card Payoff Calculator: How Long to Clear Your Card and the Interest
See how long it takes to clear a credit card balance at a fixed monthly payment, the total interest, and faster ways out.
Free tools
Credit Note and Debit Note Maker: Returns, Discounts and Extra Charges
Make a credit or debit note against an invoice with GST or VAT, amount in words and PDF, and know when each is needed.
Free tools
Cron Expression Explainer: Read a Cron Line and See When It Runs
Understand the five cron fields, special characters like */15 and 1-5, the next run times, and common mistakes.
Free tools
Crop Image: Square, 16:9, Stories and Passport Photo Sizes
Crop photos freely or to ready shapes like square, 16:9, 9:16, 4:5 and passport 35 × 45 mm, with exact pixel control.
Free tools
Crop PDF: Remove Margins From Scans and Slides
Cut PDF margins by millimetres, by dragging a box, or automatically to the content; crop all or some pages, and know what cropping doesn’t delete.
Free tools
Crossword Maker: Kid-Friendly Crosswords and Your Own Words With Clues
How to solve and make crosswords: choose a ready puzzle or type WORD - clue lines, type answers, use Check and Reveal, and print with an answer page.
Free tools
CSS Animation Generator: Fade, Slide, Bounce, Pulse and Spin
Pick a ready CSS animation, set duration, delay, timing, repeats and direction, preview it, and copy @keyframes and the class.
Free tools
CSS Checker: Find Typos, Unknown Properties and Invalid Values
How to use the CSS Checker to find misspelled properties, values the browser ignores, broken selectors and missing semicolons or braces.
Free tools
CSS Clip-Path Maker: Triangles, Hexagons, Stars and Arrows
Cut images and boxes into shapes with clip-path, drag the points to adjust, and copy the CSS.
Free tools
CSS Gradient Generator: Linear, Radial and Conic Gradients
Design CSS gradients with up to 6 colours, set angle and positions, use presets, and copy clean CSS.
Free tools
CSS Grid Generator: Card Grids, Galleries and Page Layouts
Build CSS grid layouts with columns, rows, gaps and alignment from presets like responsive cards, and copy the CSS and HTML.
Free tools
CSS Properties Reference: Tap Values and See the Change Live
Learn the most used CSS properties by tapping their values on a live demo: colours, spacing, borders, shadows, flexbox, transforms and more.
Free tools
CSS Selector Tester: See Exactly Which Elements a Selector Matches
Paste HTML and type a CSS selector to see every matching element, for stylesheets, scrapers and querySelectorAll.
Free tools
CSS Specificity Calculator: Why Your CSS Rule Doesn’t Apply
Compare CSS selectors by specificity, including :is, :not, :has and :where, see which one wins, and fix rules that are overridden.
Free tools
CSV & Excel Viewer: Open, Sort and Search Spreadsheets Without Excel
How to open CSV, TSV, XLSX, XLS and ODS files on any device, sort and search columns, see totals, and download filtered rows.
Free tools
CSV to JSON: Headers, Separators and Number Types
Convert CSV or TSV (including Excel copies) to JSON, choose header and type options, and fix wrong columns.
Free tools
Currency Converter: Why the Bank Rate Is Different, and Offline Use
Convert 160+ currencies at today’s mid-market rate, understand bank and card charges, and use the last rates offline.
Free tools
Customer Book (Mini CRM): Leads, Follow-Ups and One-Tap WhatsApp
Keep customers and enquiries with stages, notes and follow-up dates, and call, WhatsApp or email in one tap, without signing up anywhere.
Free tools
Daily Crossword: How to Fill the Grid, Switch Direction, Check and Reveal
How to solve the free daily crossword: typing, Across and Down, Check, Reveal letter or word, and making random practice puzzles.
Free tools
Daily Expense Tracker: Log Spending in Seconds by Category
Log daily spending fast, see today, this week and this month by category, set a daily budget, and export CSV.
Free tools
Daily Maths Puzzle: Reach the Target With + − × ÷
How to play the Daily Maths Puzzle: use the given numbers once each with + − × ÷ and brackets to hit the target, plus error messages.
Free tools
Daily Typing Challenge: A New Text Every Day, Streaks and a 30-Day Chart
How to use the Daily Typing Challenge: type the day’s text, keep your best try, build a streak, read the 30-day chart, and understand when the challenge changes.
Free tools
Date Converter: Date Formats, Calendars, Week Number and Unix Time
See one date in many formats and calendars, avoid day/month mix-ups, and get the ISO week number.
Free tools
Days Between Dates: Counting Days, Including the End Date, and Adding Days
Count days, weeks and months between two dates, decide whether to count the end date, and add or subtract days.
Free tools
Days Until Countdown: Days, Weeks and Working Days to Any Date
Count down to a birthday, exam, trip or festival with a live timer, see working days left, and save countdowns.
Free tools
Days, Months and Seasons: Calendar Basics, Ritus and a Quiz for Kids
How to use Days, Months and Seasons: today, yesterday and tomorrow, the 12 months and their days, seasons north and south, India’s six ritus and a quiz.
Free tools
Dead Pixel Test: Check Screens for Dead Pixels, Banding and Refresh Rate
Fill the screen with pure colours to spot dead or stuck pixels, check banding and sharpness, and measure refresh rate.
Free tools
Decibel Calculator: Adding Sound Levels, Distance and dB Ratios
Add sound levels correctly, work out sound level at a distance, and convert power or voltage ratios to decibels.
Free tools
Decimal to Fraction: Simplest Form, Mixed Numbers, Repeating Decimals
Convert decimals to fractions and fractions to decimals, simplify, and handle repeating decimals.
Free tools
Delivery Challan Generator: Sending Goods Without an Invoice
Make a delivery challan for goods sent for job work, approval or transfer, and know when an invoice or e-way bill is needed.
Free tools
Density Calculator: Find Density, Mass or Volume
Work out density, mass or volume from the other two, check units, and see whether something floats.
Free tools
Depreciation Calculator: Straight Line, WDV and Double Declining
Work out depreciation for business assets by straight-line or written-down value, and the year-by-year schedule.
Free tools
Derivative and Integral Calculator: Steps, Definite Integrals and Errors
Differentiate functions, get second derivatives and values at a point, and work out definite integrals.
Free tools
Dew Point Calculator: Humidity, Comfort and Condensation
Work out dew point from temperature and humidity, understand comfort levels, and prevent condensation and mould.
Free tools
Dice Roller: Roll Any Dice, 2d6 or d20 Notation and Totals
Roll virtual dice of any number and sides, use game notation like 3d8+2, and see totals and history.
Free tools
Digital Storage Calculator: Why a 1 TB Drive Shows 931 GB
Convert bits and bytes up to petabytes, see the real size your computer shows, what fits on a drive, and download times.
Free tools
Discount Calculator: Sale Price, Extra Discounts and “Flat 50% + 20%”
Work out the price after a discount, stack an extra discount correctly, and compare offers.
Free tools
Distance Between Places: Straight-Line Distance, Direction and Flight Time
Measure the straight-line distance between two places on a map, understand road vs air distance, and fix search errors.
Free tools
Distance Converter: km to Miles, Nautical Miles, Steps and Walking Time
Convert distances, estimate walking steps and travel time, and know when to use nautical miles.
Free tools
Dividend Yield Calculator: Yield, Yearly Dividend and What It Means
Work out dividend yield and your yearly dividend income, and avoid the high-yield trap.
Free tools
DNS Lookup: Check A, MX, TXT, CNAME and Other Records for a Domain
How to look up DNS records with Google or Cloudflare, check SPF, DKIM and DMARC, read TTL and DNSSEC, and fix NXDOMAIN.
Free tools
Dog and Cat Age Calculator: Pet Age in Human Years
Convert your dog’s or cat’s age into human years by size, and know the life stages.
Free tools
Draw and Guess Word Picker: Secret Words, Timer, Teams and Drawing Pad
How to run a draw-and-guess party game: secret word levels, round timer, Guessed it and Skip word, team scores and the drawing pad.
Free tools
Drawing Board: Sketch With Pen, Marker and Shapes, Save as PNG
Draw with pen, marker, shapes and eraser on white, grid or chalkboard paper, with undo, redo, full screen and PNG save.
Free tools
Edit PDF Metadata: Change or Remove Title, Author and Dates
See and edit the hidden title, author, subject, keywords, creator and dates inside a PDF, or wipe them before sharing.
Free tools
Electrical Power Calculator: Watts, kW, kVA, HP and Power Factor
Work out power from voltage and current for DC, single-phase and three-phase AC, with power factor and units used.
Free tools
Electricity Bill Calculator: Units Used by Appliances and Cost
Work out the units (kWh) an appliance uses and its cost per day, month and year, and why your bill can differ.
Free tools
Elevation Finder: Height Above Sea Level, Boiling Point and Altitude Sickness
Find the elevation of any town or your location, with air pressure and boiling point, and fix location errors.
Free tools
Email HTML Checker: Find Code That Breaks in Gmail and Outlook
Check newsletter and template HTML for scripts, forms, external CSS, flexbox, background images, web fonts and other things email apps break.
Free tools
Emergency Fund Calculator: How Much to Keep and Where
Work out your emergency fund target from essential expenses, choose 3 to 12 months, and plan monthly saving to build it.
Free tools
Emmet Expander: Turn Short Abbreviations Into Full HTML, JSX or CSS
How to expand Emmet abbreviations like ul>li*3 or m10 into HTML, JSX, CSS or SCSS, with a guide to > + * $ and {} symbols.
Free tools
Emoji Riddles: Guess the Word, Film, Place, Food or Saying From Emoji
How to play Emoji Riddles: choose a category, type a guess or open four Choices, use hints, and why some emoji look different.
Free tools
Emoji Search: Find, Copy and Combine Emoji by Any Word
Search over 1,000 emoji by any word, tap to copy, and build a string of several emoji to paste anywhere.
Free tools
Encrypt a File With a Password: AES-256 Locked Files
Lock any file with a password using AES-256-GCM before emailing or storing it, and unlock it later, all on your device.
Free tools
Encrypt Text: “Wrong Password” and Sharing Locked Messages
How to lock and unlock messages, why unlocking fails, and how to share the password safely.
Free tools
Energy and Power Converter: kWh, Units, BTU, HP and AC Tons
Convert energy and power units, understand electricity units, AC tonnage and horsepower, and kW vs kWh.
Free tools
EPF Calculator: Provident Fund at Retirement and How Contributions Work
Estimate your EPF balance at retirement, understand the 12% and 3.67% split, and how interest is added.
Free tools
EPUB Reader: Read E-Books in Your Browser With Chapters and Night Mode
How to open an EPUB e-book on any device, move between chapters, change text size and Day, Sepia or Night theme, and fix files that will not open.
Free tools
Equation Solver: One Equation in x or Simultaneous Equations
Solve an equation in x, set where to look for answers, solve systems of linear equations, and read the check.
Free tools
Error Message Explainer: What an Error Means and How to Fix It
Paste errors from JavaScript, Python, PHP, Java, SQL, npm, git or a web server and get a plain explanation and usual fixes.
Free tools
Escape / Unescape String: Choosing the Right Format
Which escape type to pick for JSON, JavaScript, HTML, URLs, CSV, SQL and regex, and fixing unescape errors.
Free tools
Event Invitation Maker: Invitation Picture, WhatsApp Message and Calendar Link
Make an invitation picture and a WhatsApp message with calendar, map and RSVP links for a birthday, wedding function, puja or meeting.
Free tools
Excel to PDF: Print Spreadsheets Neatly, Fitting the Page Width
Convert .xlsx, .xls or .csv sheets to PDF, choose sheets, fit all columns to the page, repeat the header row and add gridlines.
Free tools
Excel ↔ CSV Converter: Convert Spreadsheets Both Ways Without Uploading
How to convert Excel sheets to CSV with a comma, semicolon or tab separator, keep ₹ and Hindi readable, and turn CSV files into an .xlsx workbook.
Free tools
EXIF Viewer: See and Remove Hidden Location and Camera Details From Photos
See the GPS location, date, camera and settings hidden inside a JPG photo, then remove the location only or all metadata before sharing.
Free tools
Exponent Calculator: Powers, Negative and Fractional Exponents
Work out any base to any power, understand negative and fractional exponents, and read scientific notation.
Free tools
Extract Frames from Video: Thumbnails, Storyboards and Best Moments
Save stills from a video every few seconds, a number spread evenly, or the exact frame on screen, as images.
Free tools
Extract Images from PDF: Save Every Photo and Logo at Full Quality
Pull out every picture stored inside a PDF as PNG or JPG, understand why charts and scans behave differently, and get the best quality.
Free tools
Eye Test Chart: Snellen and Tumbling E Chart at True Size
Use a Snellen letter chart or tumbling E chart drawn to true size for your screen and distance, as a quick vision screening.
Free tools
Falling Words Typing Game: How to Play, Score and Level Up
How to play Falling Words: choose Easy, Normal or Hard, type words before they land, keep five lives, understand points and levels, and fix common problems.
Free tools
Fancy Text Generator: Stylish Fonts for Instagram, Bios and Games
Copy bold, script, bubble and other fancy letter styles, and why some styles show as boxes or can’t be searched.
Free tools
Favicon Generator: Every Size, favicon.ico and HTML for Your Site
Make a full favicon pack from a logo or a letter, upload it, add the HTML, and set a favicon on Blogger.
Free tools
FD and RD Calculator: Maturity Value for Fixed and Recurring Deposits
Work out the maturity value and interest of a fixed or recurring deposit, with quarterly, monthly, half-yearly or yearly compounding.
Free tools
FD Calculator: Maturity Amount, Senior Citizen Rates and Payout Options
Work out fixed deposit maturity and interest for any tenure, add senior citizen rates, and understand cumulative vs payout FDs.
Free tools
Festivals and Holidays Calendar: 20 Countries, Any Year, .ics Export
See public holidays and festivals for 20 countries and any year, days until each, weekend substitute days, and add them to your calendar.
Free tools
File Checksum Calculator: MD5, SHA-256 and CRC32 to Verify Downloads
Find MD5, SHA-1, SHA-256, SHA-512 and CRC32 checksums of any file and check it against the published one.
Free tools
Fill PDF Form: Type Into Fillable PDFs on Phone or Computer
Open a fillable PDF form, type into its boxes, ticks and lists, save it filled or locked, and what to do with scanned or flat forms.
Free tools
Fillable Form Generator: Make a Fillable PDF Form Without Software
Build a form with text boxes, choices, dates and signature lines, download a real fillable PDF, and fix fields that don’t fill.
Free tools
Final Grade Calculator: What You Need on the Final Exam
Work out the score you need on the final exam to reach your target grade, and what if you score 50% or 100%.
Free tools
Find and Replace: Match Case, Whole Words and Regular Expressions
Replace words across a text, avoid changing parts of other words, and use regular expressions and $1 safely.
Free tools
Flashcards: Turn Any List Into Study Cards
Type question | answer lines and study them as flip cards; missed cards return until you know them all, and decks are saved.
Free tools
Flatten PDF: Lock Form Answers, Comments and Stamps Into the Page
Flatten a filled PDF form or a PDF with comments so nothing can be edited or lost, choose between keeping text sharp or making each page one picture, and fix common problems.
Free tools
Flexbox Playground: Learn justify-content, align-items and gap Visually
Try flex-direction, wrap, justify-content, align-items, align-content and gap on live boxes, and copy just the CSS you need.
Free tools
Force, Work and Power Calculator: Newtons, Joules and Watts
Work out force from mass and acceleration, work done at an angle, and power, with units explained.
Free tools
Four in a Row: How to Play vs the Computer or a Friend and Win More
How to play Four in a Row online: drop discs, line up four, computer levels, keyboard keys, and strategy for beating Hard.
Free tools
Fraction Calculator: Add, Subtract, Multiply, Divide and Mixed Numbers
Work with fractions and mixed numbers, get simplified answers, and type fractions the right way.
Free tools
Freelance Rate Calculator: Setting an Hourly and Day Rate That Pays the Bills
Work out the minimum hourly and day rate for freelancing from income goal, costs, billable hours, time off and tax.
Free tools
Fuel Cost Calculator: Trip Petrol or Diesel Cost and Splitting It
Work out the fuel needed and cost for a trip in km/l, L/100 km or mpg, and split it between passengers.
Free tools
Fuel Economy Converter: km/l, L/100 km and mpg (US and UK)
Convert car mileage between km/l, litres per 100 km and US or UK mpg, and compare cars from different countries.
Free tools
Gear Ratio Calculator: Speed, Torque and Pulleys
Work out gear ratio from teeth, output speed and torque, and use it for pulleys and bicycle sprockets.
Free tools
GIF Maker: Turn Photos Into an Animated GIF
Make an animated GIF from 2 or more photos: set the size, how long each picture shows, looping and boomerang, and keep the file small enough for WhatsApp.
Free tools
Gift Idea Picker: Ideas by Person, Occasion, Interests and Budget
Get gift ideas filtered by who it’s for, the occasion, their interests and your budget, or let it surprise you.
Free tools
Git Command Helper: Get the Right git Command in Plain Words
Describe what you want to do in git, like undo a commit or create a branch, and get the exact command with your names filled in.
Free tools
Goal Planner: Saving for a House, Car, Wedding, Travel or Education
Work out the future cost of a goal with inflation, the monthly SIP or lump sum needed, and how to set realistic numbers.
Free tools
GPA and CGPA Calculator: GPA, CGPA and CGPA to Percentage
Work out GPA on a 4.0 scale, CGPA on a 10-point scale, and convert CGPA to percentage with the 9.5 rule.
Free tools
Graph Plotter: Plot x–y Data With a Trend Line, Equation and R²
How to plot data from a practical, survey or sales sheet as points, line or bars, add a best-fit trend line with its equation and R², and download a PNG.
Free tools
Graphing Calculator: Plot Functions, Zoom and Save the Graph
Plot one or more functions, zoom and move around, find where graphs cross, and download the graph as a picture.
Free tools
Gratuity Calculator: Formula, 5-Year Rule and Tax-Free Limit
Work out gratuity for private-sector employees, understand how years are counted, and the tax-free limit.
Free tools
Grocery and Packing List: Tick Items as You Shop and Share on WhatsApp
Make shopping and packing lists with quantities, tick items as you go, use templates, and share on WhatsApp.
Free tools
GST Calculator (India): Add GST, Remove GST, CGST/SGST and IGST
Add or remove GST from a price, see the CGST and SGST or IGST split, and avoid the most common GST mistake.
Free tools
GST Sales and Purchase Register: Monthly GST, ITC and Tax Payable
Record sales and purchase invoices, see GST by rate and month, input tax credit and rough tax payable, and download CSV for your accountant.
Free tools
Guitar and Instrument Tuner: Tune With Your Microphone
Tune guitar, bass, ukulele, violin, cello or any instrument with your phone or laptop microphone, with reference tones.
Free tools
Gym and Workout Log: Sets, Reps, Weight, Personal Bests and Streaks
Log gym and home workouts with sets, reps, weight and cardio minutes, see personal bests and weekly volume, and repeat past workouts.
Free tools
Habit Tracker: Daily Ticks, Streaks and a 30-Day Score
Track daily habits with one tap, see the last 7 days, current and best streaks, a 30-day score and a month view.
Free tools
Half-Life Calculator: Radioactive Decay, Medicines and Carbon Dating
Work out how much is left after a time, how many half-lives have passed, and the time to fall to 10% or 1%.
Free tools
Hash Generator: Check a Download With MD5 or SHA-256
Make MD5, SHA-1 and SHA-256 hashes of text or files, verify a downloaded file against its published checksum, and understand mismatches.
Free tools
Hashtag Generator: Relevant Hashtags Within Each App’s Limit
Turn a topic into clean, relevant hashtags with popular related tags, styled for Instagram, TikTok, X, LinkedIn, YouTube or Facebook.
Free tools
Health Claim Calculator: Why the Insurer Didn’t Pay the Full Bill
Estimate what your health insurer pays, understand room-rent proportionate deduction, co-pay, deductibles and non-payable items.
Free tools
Health Insurance Cover Calculator: How Much Cover Your Family Needs
Choose the right health insurance sum insured for your city, family and ages, and top it up cheaply.
Free tools
Hearing Frequency Test: Find the Highest Pitch You Can Hear
Play pure tones from 125 Hz to 20 kHz in each ear to find the highest pitch you can hear, as a screening aid.
Free tools
Heart Rate Zone Calculator: Max Heart Rate and Training Zones
Find your maximum heart rate and the five training zones, use resting heart rate for better zones, and train safely.
Free tools
HEIC to JPG: Open iPhone Photos on Windows, Android and Websites
Convert iPhone HEIC or HEIF photos to JPG or PNG in bulk, on your device, and fix files that won’t open.
Free tools
Height Converter: Feet and Inches to cm and Back
Convert height between feet-inches and centimetres, avoid the 5.6 feet mistake, and measure height correctly.
Free tools
Hindi Riddles (पहेलियाँ): How to Play, Type in Hindi and Check Answers
How to play our Hindi paheliyan: type your answer in Devanagari, use संकेत and उत्तर, see unsolved ones, and fix typing problems.
Free tools
Hindi Typing Practice: Inscript and Remington (GAIL) on a Normal Keyboard
How to practise Hindi typing: choose Inscript, Remington (GAIL) or My Hindi keyboard, practise Letters, Words or Sentences, half letters, and fix common problems.
Free tools
Hindi Varnamala: स्वर, व्यंजन, Barahkhadi and a Quiz
Learn the Hindi alphabet with 13 vowels and 36 consonants, a picture word and sound for each, barahkhadi, and a listening quiz.
Free tools
Home Insurance Calculator: Sum Insured for Building and Contents
Work out the right home insurance sum insured from rebuild cost and contents, and avoid the average clause.
Free tools
Home Loan Prepayment Calculator: How Much Interest You Save
See how monthly or lump-sum prepayments shorten your home loan and cut interest, and choose between lower EMI or shorter tenure.
Free tools
Hours and Minutes Calculator: Add and Subtract Times
Add up hours and minutes for timesheets and videos, subtract times, and convert totals to decimal hours.
Free tools
HRA Exemption Calculator: How Much House Rent Allowance Is Tax-Free
Work out the HRA exemption under the old regime with the three-way rule, metro vs non-metro, and documents you need.
Free tools
HTML Checker: Find Unclosed Tags, Wrong Nesting and Duplicate IDs
How to use the HTML Checker to find unclosed and mismatched tags, wrong nesting, duplicate ids, missing alt text and missing page basics, with fixes.
Free tools
HTML Entities Encode and Decode: <, & and Showing Code on a Page
Escape < > & and quotes so code shows as text on a web page or Blogger post, and decode entities back.
Free tools
HTML Form Builder: Contact, Enquiry and Order Forms With Clean HTML
Build accessible HTML forms with text, email, phone, date, drop-down, radio and tick-box fields, set where answers go, and copy the code.
Free tools
HTML Table Generator: Excel or Sheets Data to a Clean HTML Table
Paste rows from Excel, Google Sheets or CSV and get an accessible HTML table with header, styling, stripes and a caption.
Free tools
HTML Tags Reference: Every Common Tag With an Example and Preview
Look up HTML tags in plain words, with a working example and live preview, grouped by page, layout, text, media, lists, tables and forms.
Free tools
HTML to PDF: Download PDF vs Print, Sharp Text and Page Breaks
Turn HTML into a PDF, choose between Download PDF and Print / Save as PDF, and fix blurry text, cut-off content and missing images.
Free tools
HTML to Text: Get Readable Text From HTML Code or Emails
Turn HTML into plain text with line breaks, keep link addresses and list bullets, and fix leftover symbols.
Free tools
HTML, CSS and JS Playground: Try Code With a Live Preview
Write HTML, CSS and JavaScript and see the result live in a safe sandbox, save work on your device, and download it as one file.
Free tools
HTTP Status Codes: What 301, 404, 500 and 503 Mean and How to Fix Them
Look up any HTTP status code in plain words, and fix the ones website owners meet most.
Free tools
IBAN Validator: Fixing an Invalid IBAN
What each IBAN error means, which countries use IBANs, and what to do before a transfer.
Free tools
Ideal Weight Calculator: Which Formula to Trust and Healthy Ranges
Understand the healthy BMI weight range and the Devine, Robinson, Miller and Hamwi formulas, and their limits.
Free tools
Image Compressor: Reduce Photo Size for Forms, WhatsApp and Websites
Shrink photos to an upload limit, choose size, format and quality, and understand why some images barely get smaller.
Free tools
Image Converter: JPG, PNG or WebP? Transparency, Quality and Errors
Convert images in bulk, choose the right format, keep transparent backgrounds, and fix “this browser cannot save” errors.
Free tools
Image Resizer: Resize by Pixels, Percent or Print Size
Resize photos to exact pixels, a percentage or a print size in cm, mm or inches, and meet form photo requirements.
Free tools
Image to Base64: Data URLs for HTML, CSS, Markdown and JSON
Turn images into Base64 or data URLs ready for HTML, CSS, Markdown or JSON, and turn Base64 back into an image file.
Free tools
Image to PDF: Page Size, Margins and Photos That Come Out Sideways
Make one PDF from photos or scans, pick A4 or Letter, add margins, and fix sideways or huge PDFs.
Free tools
Image to Text (OCR): Copy Text From Photos, Screenshots and Scans
Read printed text from photos and screenshots in English, Hindi, Punjabi and more, copy or download it, and fix poor results.
Free tools
Image to Text: “No Text Found” or Wrong Text
How to get accurate text from photos and screenshots with the free OCR tool.
Free tools
Income Tax Calculator (India): Old vs New Regime
Compare tax under the old and new regimes, enter deductions correctly, and choose the better option for you.
Free tools
Inflation Calculator: Future Cost and What Your Money Will Be Worth
See how prices rise with inflation and how much today’s money will buy in the future, and pick a sensible inflation rate.
Free tools
Initials and Monogram Maker: Initials in Every Style and a Monogram PNG
Turn a full name into initials in every common format, and design a circle, square or diamond monogram to download as PNG.
Free tools
Install Infinity as an App on Your Phone or Computer
Install the Infinity tools as an app on Android, iPhone, iPad, Windows or Mac, from Chrome, Safari, Edge, Samsung Internet or Firefox, and open tools offline.
Free tools
Internet Speed Test: Check Download, Upload, Ping and Jitter
Test your Wi-Fi or mobile internet speed, understand download, upload, ping and jitter, and fix a slow connection.
Free tools
Inverter and Battery Calculator: VA Rating and Battery Ah for Backup
Work out the inverter size and battery capacity for your load and backup hours, for lead-acid or lithium batteries.
Free tools
Investment Portfolio Tracker: All Your SIPs, FDs, Shares and Gold in One Place
Track investments by hand: invested amount, current value, gain and asset mix, with no login and no linked accounts.
Free tools
Invisible Character: Blank Names, Empty Messages and Finding Hidden Characters
Copy invisible characters for blank names and messages, and find hidden characters like zero-width spaces in any text.
Free tools
Invoice Generator: GST Tax Invoice With HSN, CGST/SGST and UPI QR
Make a GST or VAT invoice with your logo, HSN codes and the right tax split, add a UPI QR, and save it as PDF.
Free tools
IP Subnet Calculator: Network, Broadcast, Mask and Host Range
Work out network address, broadcast, subnet mask, wildcard and usable hosts for any IPv4 address and prefix.
Free tools
JavaScript Checker (ESLint): Find Bugs, Undefined Variables and Dead Code
How to check JavaScript with ESLint in your browser: choose Browser, ES module or Node.js, read the rule names, and fix parsing errors first.
Free tools
JavaScript Console: Run JS on Any Device, Including Phones
Run JavaScript in a safe sandbox and see return values, console.log output and errors, on phones too, with Ctrl + Enter.
Free tools
JavaScript Key Code Finder: event.key, event.code and keyCode
Press any key to see event.key, event.code, keyCode, location and modifiers, and choose the right one for shortcuts and games.
Free tools
Jigsaw Puzzle Maker: Turn a Photo Into a 9 to 64 Piece Jigsaw
How to make an online jigsaw from your own photo: choose pieces, drag and snap them into place, faint picture guide, and fixes.
Free tools
Join Audio Files: Merge MP3, WAV and M4A Into One
Combine two or more audio files back to back in any order, add a gap, smooth the joins and save one MP3 or WAV.
Free tools
JS Object to JSON: Convert JavaScript Objects to Valid JSON and Back
Turn JavaScript object literals with unquoted keys, single quotes, comments and trailing commas into valid JSON, or JSON into a tidy JS object.
Free tools
JSON Compare: Find Added, Removed and Changed Values
Compare two JSON documents by meaning, ignoring key order and spacing, and read each difference with its path.
Free tools
JSON Formatter and Validator: Fixing “Not Valid JSON” Errors
Pretty-print, minify and sort JSON, read the error line, and fix the most common JSON mistakes.
Free tools
JSON to CSV: Nested Fields, Excel and Indian Characters
Convert a JSON array into a CSV for Excel or Google Sheets, understand how nested fields become columns, and fix garbled ₹ or Hindi text.
Free tools
JSON to TypeScript, Go and Python: Generate Types From a Sample
Generate TypeScript interfaces, Go structs or Python dataclasses from sample JSON, and fix optional and mixed fields.
Free tools
JSON Validator: Exact Error Line, Plain-English Reason and Quick Fix
Check JSON and see the line, column and reason of any error, fix common mistakes in one click, and avoid them next time.
Free tools
JWT Decoder: Reading Claims, Expiry and Why “Valid” Isn’t Checked
Decode a JSON Web Token to read its header and payload, see expiry times as dates, and understand what decoding does not prove.
Free tools
Kakuro: How to Play Cross-Sum Puzzles and Read the Clues
How to play Kakuro online: reading the grey clue squares, filling runs with 1–9 without repeats, red numbers, Reveal square and sizes.
Free tools
Kaomoji: Text Faces for Every Mood, Tap to Copy
Copy over 150 kaomoji text faces for happy, love, shrug, table flip, cats, bears and more, and collect favourites.
Free tools
Keyboard Layout Practice: Learn AZERTY, QWERTZ or Dvorak on Your Keyboard
How to practise a new keyboard layout: choose AZERTY, QWERTZ, Dvorak or QWERTY, let the tool swap the keys, practise Home row, Words and Sentences.
Free tools
Keyboard Tester: Check Every Key and How Many Work Together
Press keys and watch them light up on a full keyboard map, with key codes and a test of how many keys work at once.
Free tools
Kinetic and Potential Energy Calculator: Speed, Height and Crash Energy
Work out kinetic and potential energy, compare speed with falling height, and see why speed matters in crashes.
Free tools
Kisan Vikas Patra Calculator: When Your Money Doubles
Find the KVP maturity date and value, understand the doubling period, and the tax and lock-in rules.
Free tools
Kitty and Committee (BC) Tracker: Contributions, Pot and Fair Draw
Run a kitty party or committee: members, monthly contributions, who has paid, the pot, and a fair lucky draw or bid for the winner.
Free tools
Kruti Dev to Unicode Converter: Fix “Hkkjr” Hindi Text
Convert old Kruti Dev 010 Hindi text into Unicode that works everywhere, and Unicode back to Kruti Dev for old software.
Free tools
Land Area Converter: Bigha, Kanal, Marla, Acre and State Differences
Convert Indian land units by state, understand why bigha sizes differ, and verify land measurements before buying.
Free tools
Large Files, Page Limits and Slow Tools
How big a file the free tools can handle, the page and file limits, and what to do when a tool is slow.
Free tools
LCM and HCF Calculator: Finding LCM and GCD of Several Numbers
Find the LCM and HCF (GCD) of two or more numbers, and use them for fractions and real-life problems.
Free tools
Lean Body Mass Calculator: What It Means and How to Use It
Estimate lean body mass from height and weight with the Boer formula, and use it for protein and medicine dosing.
Free tools
Leap Year Checker: Is It a Leap Year and Why
Check any year for a leap year, understand the 100 and 400 rules, and list the nearest leap years.
Free tools
Learn Coins and Notes: Teach Money Values, Making Amounts and Counting
How to use Learn Coins and Notes: hear each coin and note, make an amount like ₹37 in Make it, and add up money in Count it, in 14 currencies.
Free tools
Learn the ABC: Letters, Picture Words, Sounds and a Listening Quiz
Help young children learn A to Z with big letters, picture words, spoken sounds and a listening quiz, and fix sound problems.
Free tools
Learn to Read a Clock: Time in Words and Clock Games
Learn telling time with a big analogue clock, move the hands, hear the time, and play read-the-clock and set-the-clock games.
Free tools
Lend and Borrow Tracker: Who Owes You and Whom You Owe
Note money lent or borrowed with dates, part returns and due dates, see balances, and send polite WhatsApp reminders.
Free tools
Lens Calculator: Image Distance, Magnification and Lens Power
Use the thin-lens equation to find image distance, height and magnification, and lens power in dioptres.
Free tools
Letter Generator: Resignation, NOC, Authorization and Business Letters
Write formal and personal letters in a minute, customise the wording, and print, save as PDF or Word.
Free tools
Letter Tracing: Practise Writing Letters With a Finger or Stylus
Trace dotted English, Hindi and Gurmukhi letters on a phone, tablet or computer, check neatness and earn stars, without paper.
Free tools
Letterhead and Business Card Maker: A4 Letterhead and 3.5 × 2 in Card
Make a company letterhead as PDF or Word and a matching 3.5 × 2 inch business card PNG with your logo, ready for printing.
Free tools
LIC Maturity Calculator: Bonus, Maturity Amount and Real Return
Estimate maturity of a traditional LIC endowment policy from sum assured and bonus rates, and see your real yearly return.
Free tools
Life Insurance Cover Calculator: How Much Term Cover You Need
Work out the right life cover with the needs method and the 10–15× income rule, and buy it the cheapest way.
Free tools
Link-in-Bio Page Maker: Your Own Page for Instagram and YouTube Bios
Make a simple link-in-bio page with your photo, bio and buttons as one HTML file you own, and host it free.
Free tools
Loan Comparison Calculator: Which Loan Is Really Cheaper?
Compare two loan offers by EMI and total cost including fees, and why the lowest rate isn’t always cheapest.
Free tools
Loan EMI Calculator: Understanding EMI, Interest and the Payment Table
Work out the monthly EMI for any loan, read the year-by-year table, and see why most early EMIs go to interest.
Free tools
Logarithm Calculator: log, ln and Any Base
Work out logarithms in any base, natural log ln, and use logs to solve for time in growth problems.
Free tools
Logic Grid Puzzles: How to Use ✕ and ● to Work Out Who Owns What
How to solve logic grid (Einstein/zebra) puzzles: reading clues, marking ✕ and ●, auto cross-out, Check and Hint, and the three levels.
Free tools
Logic Puzzles: How to Solve Seating, Truth-Teller and Lateral Thinking Riddles
How to play our 30+ logic and lateral thinking puzzles: seating, ages, liars and truth-tellers, codes, with hints and full reasoning.
Free tools
Long Division Calculator: Step-by-Step Working, Remainder and Decimals
See long division worked step by step, get the quotient and remainder, and the decimal answer.
Free tools
Lorem Ipsum Generator: Placeholder Text for Designs (and When Not to Use It)
Make placeholder paragraphs, sentences or words, and avoid publishing pages that still contain lorem ipsum.
Free tools
Love Calculator: How the Score Works (Just for Fun)
How the love score is made from two names, why it stays the same, and keeping it fun.
Free tools
Ludo: Play 2 to 4 Players on One Device or Against the Computer
How to play Ludo online: players and computer seats, rolling a 6, moving tokens, captures, safe squares, exact home and the extra roll.
Free tools
Lump Sum Investment Calculator: How Much a One-Time Investment Grows
Estimate the future value of a one-time investment, read the “money multiplies by” figure, and compare lump sum with SIP.
Free tools
Macro Calculator: Protein, Carbs and Fat in Grams for Your Diet
Split daily calories into protein, carbohydrates and fat for balanced, high-protein, low-carb or keto plans.
Free tools
Magnifier: Read Small Print With Your Phone Camera
Turn your phone camera into a magnifying glass with zoom, light, freeze and high-contrast reading modes for small print.
Free tools
Mailto, Tel and SMS Link Maker: Email, Call and Text Buttons
Make links that open a pre-filled email, start a phone call or a text message, with HTML for your site.
Free tools
Make a Scanned PDF Searchable (OCR): Find and Copy Text in Scans
Add an invisible text layer to scanned PDFs so you can search, select and copy text, in English, Hindi, Punjabi and 16 more languages, without changing how the pages look.
Free tools
Make Your Own WhatsApp Sticker: Size, Transparency and Adding It to WhatsApp
Create a 512 × 512 WebP sticker under 100 KB, remove the background, and add your sticker to WhatsApp on phone or computer.
Free tools
Map and Directions Link Maker: Share a Location for Any Maps App
Make a link that opens a place or directions in Google Maps, Apple Maps, Waze or OpenStreetMap, with a QR code and a WhatsApp message.
Free tools
Map and Model Scale Converter: 1:50,000 Maps, Drawings and Models
Turn a length on a map, drawing or model into real size and back, for any 1:N scale.
Free tools
Markdown Checker: Fix Headings, Links and Code Blocks in README Files
How to check Markdown for skipped heading levels, #Title without a space, broken or bare links, images without alt text and unclosed code blocks.
Free tools
Markdown to HTML: Preview, Copy Clean HTML and Paste in Blogger
Write Markdown, check the preview, copy safe HTML, and use it in Blogger, WordPress or emails.
Free tools
Mass to Weight Calculator: Newtons and Your Weight on Other Planets
Turn mass in kg into weight in newtons, see what a scale would show on the Moon and planets, and understand mass vs weight.
Free tools
Maths Practice: Adding, Taking Away, Times and Sharing With Levels
Quick arithmetic practice for primary school with four levels, a big number pad, stars, a timer and a list of mistakes to review.
Free tools
Maths Riddles: How Number Answers Are Checked, With Hints and Worked Answers
How to play our 35+ maths riddles and number puzzles: type numbers in any form, use hints, read the step-by-step explanation.
Free tools
Matrix Calculator: Add, Multiply, Determinant, Inverse and Transpose
Enter matrices row by row, multiply and invert them, and fix size and singular-matrix errors.
Free tools
Maze Generator: How to Play, Solve and Print Mazes
How to make a new maze from Easy to Huge, move the dot with arrows or swipes, show the way out, and print mazes with answers.
Free tools
Medicine Schedule and Reminders: Doses, Times and Tick-Offs
List medicines with doses and times, tick each dose as taken, see how regular you have been, and add reminders to your phone calendar.
Free tools
Meditation Timer: Singing-Bowl Bell, Interval Bells and a Streak
Meditate without watching the clock: set a length, settling-in time and interval bells, and keep a log of sessions and your streak.
Free tools
Meme Generator: Top and Bottom Text on Your Own Picture
Make a meme with classic top and bottom text on your photo or a plain background, and share it.
Free tools
Memory Card Match: How to Play the Pairs Game Alone or With a Friend
How to play the memory matching card game: picture sets, 12 to 36 cards, 1 or 2 players, scoring and tips for better memory.
Free tools
Memory Matching Game: Find the Pairs Alone or With a Friend
How to play the Memory Matching Game: choose a theme and 6 to 15 pairs, play 1 or 2 players, read moves and best score, and fix common problems.
Free tools
Merge PDF: Changing the Order, Big Files and Errors
How to join PDFs in the right order, why a file won’t merge, and how to keep the merged PDF small.
Free tools
Message a WhatsApp Number Without Saving It: Help and Fixes
How to open a chat with any number without adding it to contacts, and what to do when WhatsApp says the number is not on WhatsApp.
Free tools
Meta Tag Generator: Title, Description, Open Graph and Twitter Cards
Create SEO and social sharing tags with a Google preview, choose the right lengths, and add them to Blogger or any site.
Free tools
Metronome: Steady Tempo 20–300 BPM With Accents and Tap Tempo
Keep time with a metronome from 20 to 300 BPM, set time signatures, accents and subdivisions, choose sounds, and find a song’s tempo.
Free tools
Microphone Test: Check Your Mic Before Calls and Classes
Check your microphone with a live level meter and waveform, see device settings, and record 5 seconds to hear how you sound.
Free tools
Milk and Daily Hisab: Monthly Bill for Milk, Newspaper and Maid
Keep a monthly hisab for milk, newspaper, maid or water can: mark days off or extra, get the bill, record payments and share it on WhatsApp.
Free tools
Mines: How to Play, Flag Mines on a Phone and Read the Numbers
How to play Mines (clear the field): levels, safe first tap, reading numbers, flagging with long-press or Flag mode, and chording.
Free tools
Molar Mass Calculator: Formulas, Brackets and Hydrates
Work out molar mass from a chemical formula, write brackets and hydrates correctly, and convert grams to moles.
Free tools
Molarity and Dilution Calculator: Making Solutions in the Lab
Find molarity from mass, the mass to weigh out for a solution, and dilute a stock with C1V1 = C2V2.
Free tools
Money Manager: Track Daily Income, Expenses and Monthly Budget
Record income and expenses by category, set a monthly budget, see where money went, and export to Excel.
Free tools
Moon Phase: Tonight’s Moon and Any Date, With Next Full and New Moons
See the moon’s phase for any date and time, how much is lit, its age, the next new and full moons, and a month of phases.
Free tools
Morse Code Translator: Spacing, Slashes and Unreadable Letters
How to write Morse code the translator understands, and what a ? in the result means.
Free tools
Mortgage Calculator: Monthly Payment With Taxes, Insurance and HOA
Work out a full monthly mortgage payment including property tax, home insurance and HOA, and understand PITI.
Free tools
Multiplication Tables: Any Table up to 20, a 1–12 Chart and a Quiz
See any times table up to 10, 12 or 20, open a 1–12 chart, and take a 10-question practice quiz with a score.
Free tools
My Data: Back Up and Restore Everything Infinity Saved on Your Device
See what every Infinity tool saved on this device, back it all up in one file, restore it on another phone, or delete a tool’s data.
Free tools
My Recipe Book: Save Family Recipes With Photos, Scale and Share
Save your own recipes with a photo, ingredients and method, search by ingredient, scale servings, and print or share them.
Free tools
My Screen Resolution: Resolution, Pixel Ratio, Window Size and Refresh Rate
See your screen resolution, real pixels, pixel ratio, browser window size, aspect ratio, refresh rate, HDR and touch support.
Free tools
NATO Phonetic Alphabet: Spelling Codes Clearly on the Phone
How to read out booking codes, emails and serial numbers with the NATO alphabet.
Free tools
Net Worth Calculator: What You Own Minus What You Owe
Add up assets and debts to find your net worth, value each item fairly, and track it over time.
Free tools
Nonogram Picture Puzzles: How to Read the Clues and Reveal the Picture
How to solve nonograms (griddlers): reading number clues, filling and marking squares, Check, Hint and the puzzle sizes.
Free tools
NPS Calculator: Corpus at 60, Lump Sum and Monthly Pension
Estimate your National Pension System corpus at 60, the tax-free lump sum and the pension from the annuity.
Free tools
NPV and IRR Calculator: Is a Project or Investment Worth It?
Work out net present value and internal rate of return from yearly cash flows, choose a discount rate, and read the result.
Free tools
NSC Calculator: National Savings Certificate Maturity and Tax
Estimate NSC maturity after 5 years, understand fixed rates and yearly compounding, and how NSC interest is taxed.
Free tools
Number Base Converter: Binary, Octal, Decimal, Hex and Any Base
Convert numbers between bases 2 to 36, read binary and hex correctly, and fix digits that are not allowed in a base.
Free tools
Number Merge: How Tiles Merge, Chains Score and How to Last Longer
How to play Number Merge: place tiles on a 5 × 5 board, merge three or more equal numbers, chain reactions, scoring and the one undo.
Free tools
Number Names in Many Languages: 0–100 in Nine Languages With Audio
See how any number from 0 to 100 is written and said in English, Hindi, Spanish, French, German, Arabic, Russian, Chinese and Japanese.
Free tools
Number Pad (10-Key) Practice: Data-Entry Speed in KPH
How to practise the number pad: levels 4 5 6 to All, Amounts and Long IDs, Enter after each number, keystrokes per hour (KPH), and laptop tips.
Free tools
Number to Words: Writing Amounts on Cheques Correctly
Indian (lakh, crore) or international (million) style, cheque wording with paise or cents, and common mistakes.
Free tools
Number Tracing: Write 0–20, Count Pictures, Hindi, Gurmukhi and Arabic Digits
Trace dotted numbers 0–20 with a finger, stylus or mouse, count matching pictures and earn stars, including Hindi, Gurmukhi and Arabic digits.
Free tools
Odd One Out: Picture Puzzles That Explain Why
How to play Odd One Out: pick Easy (4) or Harder (5), tap the picture that does not belong and hear why, with tips for building thinking skills.
Free tools
Ohm’s Law Calculator: Voltage, Current, Resistance and Power
Find voltage, current, resistance or power from any two values, with everyday examples and unit tips.
Free tools
On-Page SEO Checker: Title, Description, Headings, Alt Text and More
Paste a page’s HTML to check its title, meta description, H1, heading order, image alt text, canonical, noindex, mobile and social tags, with fixes.
Free tools
Online Alarm Clock: Alarms With Labels, Sounds, Snooze and Repeat
Set one or more alarms in your browser with labels, sounds, snooze and daily repeat, and keep the screen on so they ring.
Free tools
Online Calculator: History, Percent Key and Keyboard Use
Use the everyday calculator with your keyboard, reuse past answers from history, and understand the % key.
Free tools
Online Mirror: Check Your Look With the Front Camera
Use your front camera as a mirror with zoom, brightness and a light ring, take a photo, and fix camera permission problems.
Free tools
Online Notepad: Notes That Save as You Type
A clean notepad that saves every keystroke on your device, with many notes, search, word count, download and WhatsApp sharing.
Free tools
Online Protractor: Measure Angles on Screen or in a Photo
Measure any angle by dragging three handles, measure angles in your own photos, and get accurate readings.
Free tools
Online Ruler: Calibrate It to Real Size on Your Screen
Make the on-screen ruler match real centimetres and inches with a bank card or your screen size, and measure small objects.
Free tools
Opposites and Pairs: Learn, Match Up and Quiz With Pictures
How to use Opposites and Pairs: learn 24 opposites and 18 things that go together, play Match up and an eight-question quiz, with ideas for parents.
Free tools
Overtime Pay Calculator: Time and a Half, Double Time and Total Pay
Work out overtime pay at 1.25×, 1.5× or 2×, and what the law says about overtime rates.
Free tools
Ovulation Calculator: Fertile Window and Next Period
Estimate your ovulation day and most fertile days from your cycle, improve accuracy, and why it isn’t birth control.
Free tools
Pages per Sheet (N-up): Print 2, 4 or More PDF Pages on One Sheet
Put 2, 4, 6, 9 or 16 PDF pages on each sheet to save paper when printing notes, slides and handouts, with page order, margins and borders.
Free tools
Paint Calculator: How Many Litres of Paint and Primer for a Room
Work out wall and ceiling area, paint for two coats and primer, and check coverage on the tin.
Free tools
Passport Photo Maker: Country Sizes and a Print Sheet
Crop a photo to passport and visa sizes for India, USA, UK, Schengen and more, and print several copies on 4 × 6 in or A4.
Free tools
Password Generator: Strong Passwords and Passphrases You Can Remember
Make a strong random password or passphrase, choose the right length, and store it safely.
Free tools
Password Protect PDF: Lock a PDF With AES-256 Before Sharing
Add an open password to a PDF with AES-256 encryption, choose print, copy and edit permissions, and share the password safely.
Free tools
Password Strength Checker: How Long Would Your Password Take to Crack?
How to test a password with zxcvbn, read the strength score and crack times, understand the patterns found, and make it Strong.
Free tools
Paste as Plain Text: Remove Formatting From Copied Text
Strip fonts, colours, hidden characters, smart quotes, extra spaces and broken lines from copied text, then copy it clean.
Free tools
PDF to Black and White: Grayscale or Crisp B&W to Save Ink
Convert a colour PDF to grayscale or pure black and white for printing and portals, tune the darkness cut-off, and keep scans readable.
Free tools
PDF to JPG or PNG: Quality, Page Choice and Blurry Images
Turn PDF pages into pictures, choose JPG or PNG, pick only some pages, and get sharp images.
Free tools
PDF to Text: “No Text Found”, Jumbled Columns and Tables
Copy the text out of a PDF, understand why scanned PDFs give no text, and fix text that comes out in the wrong order.
Free tools
PDF to Word: Convert a PDF Into an Editable .docx
Turn a PDF into a Word file you can edit, keeping paragraphs, headings and bold text, or keep the exact look with page pictures; and what to do with scans and tables.
Free tools
Percentage Calculator: X% of Y, Percentage Change and Adding a Percent
Work out percentages five ways, avoid the common percentage-change mistakes, and check discounts and marks.
Free tools
Percentage Change Calculator: Increase, Decrease and Percentage Difference
Find the percentage change between an old and new value, and when to use percentage difference instead.
Free tools
Perimeter Calculator: Fencing, Borders and Circle Circumference
Find the perimeter of rectangles, triangles, polygons and ellipses, and the circumference and arc length of circles.
Free tools
Period Calculator: Next Period, Ovulation and Cycle Tracking
Predict your next periods and likely ovulation from your cycle, and know when an irregular cycle needs a doctor.
Free tools
Periodic Table: All 118 Elements With Details
Explore every element by group and period, coloured by type, with atomic number, mass, block and state, and search by name or symbol.
Free tools
Permutation and Combination Calculator: nPr, nCr and When to Use Each
Work out permutations and combinations, with repetition, and decide whether order matters in your problem.
Free tools
Phonics: Letter Sounds and Blending Words Like c-a-t
Hear the sound each letter makes and blend sounds into words like c-a-t, sh-ee-p and fr-o-g, for early reading.
Free tools
Photo Collage Maker: 2 to 12 Photos in Grids and Layouts
Combine photos in a grid, row, column or one big photo with smaller ones, in square, story or print sizes.
Free tools
Photo Filters and Adjustments: Brightness, Warmth, B&W and Presets
Adjust brightness, contrast, saturation, warmth and more, use presets, compare with the original, and save at full size.
Free tools
Picture Riddles: Odd One Out, Find the Pair, Count and What Comes Next
How to play Picture Riddles: the four puzzle types, Easy/Medium/Hard grids, how scoring works and what happens after wrong taps.
Free tools
Placeholder Image Generator: Any Size, Colour and Label
Make placeholder images in exact sizes like 1200 × 630 or Instagram and YouTube sizes, as PNG, JPG, WebP or SVG data URLs.
Free tools
Pomodoro Timer: 25-Minute Focus Sessions and Breaks
Beat procrastination with 25-minute focus rounds, short breaks and a long break every 4 rounds, with your own timings.
Free tools
Post Office Monthly Income Scheme Calculator: Monthly Income and Limits
Work out monthly income from the Post Office MIS, single vs joint limits, and early closure and tax rules.
Free tools
Post Office RD Calculator: 5-Year Recurring Deposit Maturity
Estimate Post Office recurring deposit maturity, why India Post’s table differs slightly, and rules for missed instalments.
Free tools
Post Office Time Deposit Calculator: 1, 2, 3 and 5-Year Returns
Work out Post Office Time Deposit interest for each tenure, yearly payout, and the 80C benefit on the 5-year deposit.
Free tools
PPF Calculator: Maturity Value, Deposit Timing and Extension
Estimate Public Provident Fund maturity, deposit at the right time each year, and understand lock-in, extension and tax benefits.
Free tools
Practise Typing With Your Own Text: Notes, Chapters and Exam Passages
How to practise typing your own text: paste notes, join lines, use small letters or remove punctuation, set a timer up to 10 minutes, and read your result.
Free tools
Pregnancy Due Date Calculator: Due Date, Weeks Pregnant and Cycle Length
Estimate your due date from the last period, adjust for cycle length, and understand why the scan date may differ.
Free tools
Premium Payment Mode Calculator: Monthly vs Yearly Insurance Premium
See how much extra you pay by paying insurance premiums monthly, and its real yearly cost.
Free tools
Pressure Converter: Tyre psi to bar, mmHg and Weather hPa
Convert psi, bar, kPa, atm, mmHg, inHg and kgf/cm², with tyre pressure, blood pressure and weather examples.
Free tools
Prime Number Checker: Is It Prime, Factors and Divisors
Check whether a number is prime, see its prime factorisation and all divisors, and find the next prime.
Free tools
Printable Calendar Maker: Year, Month or 12 Pages With Holidays
Make a printable calendar for any year or month with public holidays, week numbers and your own events, as PDF.
Free tools
Printable Sudoku: Make, Print or Save Sudoku Pages With Answers
How to make pages of new sudoku puzzles (Easy to Expert, 1 to 6 per page) with an answer page, and print them or save as PDF or PNG.
Free tools
Printable Worksheets: Tracing, Sums, Missing Numbers and Times Tables as PDF
How to make free printable worksheets: ABC and 123 tracing, sums at four levels, missing numbers, times tables and writing lines, with an answer key page.
Free tools
Private Diary (Encrypted): A Diary Only You Can Open
Write a diary encrypted on your device with your password, set a hint, lock and unlock it, and why a forgotten password can’t be recovered.
Free tools
Probability Calculator: And, Or, Not and Repeated Events
Combine probabilities of two independent events, and the chance of something happening at least once in many tries.
Free tools
Profit Margin Calculator: Margin vs Markup and Setting a Selling Price
Work out profit, margin and markup, set a selling price for the margin you want, and avoid the margin-markup mix-up.
Free tools
Proforma Invoice Generator: What It Is and When to Use It
Create a proforma invoice for advance payments, imports and quotations, and know how it differs from a tax invoice.
Free tools
Projectile Motion Calculator: Range, Height and Time of Flight
Work out range, maximum height, time in the air and landing speed from launch speed, angle and height.
Free tools
Protein Intake Calculator: How Much Protein You Need a Day
Work out daily protein from your weight and activity, with dal, egg and paneer examples, and tips for vegetarians.
Free tools
Punjabi Gurmukhi Letters: ਪੈਂਤੀ, Dotted Letters and ਲਗਾਂ-ਮਾਤਰਾਂ
Learn all 35 Gurmukhi letters of the painti with names, picture words and sounds, plus dotted letters and lagan-matran, with a quiz.
Free tools
Punjabi Riddles (ਬੁਝਾਰਤਾਂ): How to Play, Type in Gurmukhi and Check Answers
How to play our Punjabi bujartan: type the answer in Gurmukhi, use ਇਸ਼ਾਰਾ and ਜਵਾਬ, filter unsolved ones and fix typing problems.
Free tools
Punjabi Typing Practice: Gurmukhi Inscript on a Normal Keyboard
How to practise Punjabi (Gurmukhi) typing: Inscript on a normal keyboard or your own Punjabi keyboard, Letters, Words or Sentences, tippi, bindi, addak and more.
Free tools
Purchase Order Generator: Ordering From Suppliers in Writing
Create a purchase order with items, prices, delivery date and terms, and use it to check the supplier’s invoice.
Free tools
PX to REM Converter: px, rem, em, pt, vw and vh in CSS
Convert CSS sizes between px, rem, em, pt, vw, vh and % with your own base sizes, and choose the right unit.
Free tools
Pythagoras Calculator: Find the Missing Side of a Right Triangle
Find the hypotenuse or a side, plus angles, area and perimeter, and use the 3-4-5 rule to check right angles.
Free tools
Python Checker: Fix IndentationError, Missing Colons and Beginner Mistakes
How to use the Python Checker to find indentation, colon and bracket errors as you type, and run a full check with real Python 3.12.
Free tools
QR Code Generator: Link, Wi-Fi and WhatsApp QR Codes That Scan Every Time
Make QR codes for links, text, Wi-Fi and WhatsApp, choose PNG or SVG and error correction, and print codes that scan reliably.
Free tools
QR Code Scanner: Read QR Codes With Your Camera or From a Screenshot
How to scan a QR code with your camera or from a photo or screenshot, see what it contains before opening it, and fix “No QR code found”.
Free tools
Quadratic Equation Solver: Roots, Discriminant and Vertex
Solve ax² + bx + c = 0, read real or complex roots from the discriminant, and find the vertex of the parabola.
Free tools
Quick Poll and Decision Maker: Vote on One Phone or Count WhatsApp Replies
Run a quick vote on one phone, count numbered replies pasted from a WhatsApp group, or let a fair random pick decide.
Free tools
Quotation Generator: Professional Quotes and Estimates With Validity
Create a quotation or estimate with items, tax and validity date, then turn it into an invoice when the order comes.
Free tools
Random Letter Generator: Letters, Words and Countries With No Repeats
Pick random letters in English, Hindi, Arabic, Greek or Russian, or random words or countries, with no repeats until all are used.
Free tools
Random Name Picker Wheel: Spin a Wheel or Pick Instantly
Spin a wheel of names or options, pick instantly, shuffle a list, and run fair classroom and office draws.
Free tools
Random Number Generator: Random Numbers Between Any Two Values
Pick one or many random numbers in a range, with or without repeats, for draws, games and sampling.
Free tools
Random Team Generator: Split Names Into Fair, Even Teams
Split a list into random teams by number of teams or team size, name the teams, and keep teams balanced.
Free tools
Ratio Calculator: Solve A:B = C:?, Simplify and Share in a Ratio
Find the missing value in a proportion, simplify a ratio, and split amounts in a given ratio.
Free tools
RD Calculator: Recurring Deposit Maturity and Interest
Work out recurring deposit maturity with the quarterly compounding Indian banks use, and what happens if you miss an instalment.
Free tools
Reaction Time Test: How It Works, What Your Score Means
How the reaction time test works: tap on green, five rounds, average, median and fastest in milliseconds, ratings and false starts.
Free tools
Readability Checker: What Your Score Means and How to Improve It
Flesch reading ease, grade level and fog index explained, with quick ways to make text easier.
Free tools
Receipt Maker: Receipts for Cash, UPI, Cheque and Rent
Make a payment receipt with amount in words, payment mode and reference, for shops, tuition, rent and services.
Free tools
Recipe Scaler: Double, Halve or Scale a Recipe for Any Number of People
Scale every ingredient in a recipe to a new number of servings, and adjust spices, baking and cooking time sensibly.
Free tools
Redact PDF: Black Out Names, Numbers and Emails Permanently
Find and black out sensitive text in a PDF, or draw boxes by hand; redacted pages are flattened so the hidden text is really gone.
Free tools
Regex Pattern Library: Ready Patterns for Email, Phone, PIN, PAN and GSTIN
Copy tested regular expressions for common data like Indian PIN, PAN, GSTIN, IFSC, vehicle numbers and emails, and test them on your values.
Free tools
Regex Tester: Writing Patterns, Flags, Groups and Replacements
Test regular expressions live, understand flags and capture groups, and fix patterns that match nothing or too much.
Free tools
Remove Audio From Video: Make a Silent Copy in Seconds
Mute a video by removing its sound track without changing the picture, and what to do when it fails.
Free tools
Remove Background: Cut Out People and Products With AI
Remove the background from a photo on your device with AI, choose see-through, white, colour or blur, and fix rough edges around hair.
Free tools
Remove Duplicate Lines: Why Some Duplicates Stay and Other Questions
Clean lists of names, emails or numbers, catch duplicates that differ only by spaces or capitals, and keep the original order.
Free tools
Remove PDF Password: Save an Unlocked Copy of Your Own PDF
Remove the open password from bank statements, payslips and e-tickets you can open, or lift print and copy limits, safely on your device.
Free tools
Rent Agreement Draft: 11-Month, Leave and Licence, Shop and PG
Draft an editable rent agreement for a residential 11-month rental, leave and licence, shop, room/PG or general lease.
Free tools
Rent Tracker for Landlords: Tenants, Payments, Dues and Receipts
Track tenants, monthly rent and payments, see dues at a glance, make rent receipts and send polite reminders on WhatsApp.
Free tools
Rent vs Buy Calculator: Should You Buy a Home or Rent and Invest?
Compare buying a home with renting and investing the difference, choose fair assumptions, and know what the comparison leaves out.
Free tools
Resistor Colour Code Calculator: Reading 4, 5 and 6 Band Resistors
Read the value and tolerance of a resistor from its colour bands, and know which end to start from.
Free tools
Resume Builder: A Clean Resume in Three Layouts, as PDF or Word
Build a recruiter-friendly resume in Classic, Modern or Compact layouts, choose a colour, and save as PDF or Word.
Free tools
Retirement Calculator: How Much You Need and How Much to Save
Work out your retirement corpus from expenses and inflation, the monthly saving needed, and how to make realistic assumptions.
Free tools
Reverse Text: Backwards Letters, Word Order, Line Order and Mirror Writing
Write text backwards by letters, words or lines, keep emoji and accented letters whole, and fun and practical uses.
Free tools
Rhymes Reader: Nursery Rhymes and Hindi Rhymes Read Line by Line
How to use the Rhymes Reader: choose from twenty rhymes, press Read it to me to light up each line, use Repeat for sing-along, and fix sound problems.
Free tools
Riddle of the Day: How the Daily Riddle, Hint and Streak Work
How to solve the Riddle of the Day, use the hint, keep your daily streak going and see yesterday’s answer and the last 7 days.
Free tools
Riddle Quiz: Timer, Points, Speed Bonus and Best Scores Explained
How the Riddle Quiz works: choose a riddle type and a time per riddle, answer 10 multiple-choice riddles, and how points and bests are counted.
Free tools
Riddles for Kids: How to Play, Check Answers and Use Hints
How children can play our 40+ easy “What am I?” riddles: type or say the answer, use hints, track solved riddles and share them.
Free tools
robots.txt Generator: Block Folders, AI Crawlers and Add Your Sitemap
Build a correct robots.txt, block admin and search pages, choose rules for AI crawlers, add sitemaps, and test paths.
Free tools
ROI Calculator: Return on Investment and Annualised Return
Work out the gain and return on investment, convert it to a yearly return, and compare investments fairly.
Free tools
Roman Numerals: Why a Number Is Refused or Marked “Not Standard”
The 1–3999 limit, the standard way to write Roman numerals, and converting many numbers at once.
Free tools
Roof Pitch Calculator: Pitch, Angle, Rafter Length and Roof Area
Work out roof pitch and angle from rise and run, rafter length, and roof area from floor area.
Free tools
Rotate and Flip Image: Fix Sideways Photos, Mirror and Straighten
Rotate photos left, right or 180°, mirror or flip them, straighten a tilted horizon, and fix many photos at once.
Free tools
Rotate, Delete or Reorder PDF Pages: PDF Organizer Help
Turn sideways pages, remove blank or extra pages, move pages around, and save the PDF again.
Free tools
Rounding Calculator: Decimal Places, Significant Figures and Banker’s Rounding
Round numbers to decimal places or significant figures, round up or down, and understand banker’s rounding.
Free tools
Rubber Stamp Maker: Round Seal or Rectangular Stamp as a PNG
Design a round seal or rectangular stamp with curved text, centre text, stars and ink colour, and download a transparent PNG.
Free tools
Run Lua: Try Lua 5.3 Scripts in Your Browser
How to run Lua code online with print, io.write and io.read, what the 10-second limit means, and how it differs from Roblox Luau.
Free tools
Run Python: Write and Run Python 3.12 on Any Phone or Computer
How to run Python in your browser with input(), stop endless loops, use NumPy or pandas, and fix errors shown in the output.
Free tools
Run Ruby: Run Ruby 3.3 Code Without Installing Anything
How to run Ruby online with puts and gets, use the standard library, stop a long run, and fix errors shown in the output.
Free tools
Running Pace Calculator: Pace per km or Mile From Distance and Time
Work out your running pace and speed from a distance and time, and predict half marathon and marathon times.
Free tools
Running Pace to Speed Converter: min/km, min/mile, km/h and Race Times
Convert running pace and speed, and see finish times for 5K, 10K, half and full marathon.
Free tools
Salary and Hourly Wage Calculator: Hourly to Yearly and Back
Convert pay between hourly, daily, weekly, monthly and yearly, and compare job offers fairly.
Free tools
Sales Tax Calculator (US): State Plus Local Rate, Add or Remove Tax
Work out US sales tax with your combined state and local rate, and take tax out of a total.
Free tools
Save a WhatsApp Chat as PDF (With Photos): Help and Fixes
Turn an exported WhatsApp chat into a printable PDF or HTML page, include photos, and fix blank or very large PDFs.
Free tools
Scientific Calculator: DEG/RAD Mode, Ans, Powers and Logs
Use trigonometry in degrees or radians, powers, roots, logs and factorials, and fix common wrong answers.
Free tools
Scorekeeper: Keep Score for Card Games, Board Games and Sports
How to keep score for any game: add players, +/− buttons, whole rounds for rummy, target score, lowest score wins, undo and sharing results.
Free tools
Screen Light: Turn Your Screen Into a Torch, With Colours and SOS
Fill your screen with bright white, warm or coloured light, go full screen, keep the screen on, and use slow blink or SOS.
Free tools
Screen Recorder: Record Your Screen, a Window or a Tab With Sound
Record your whole screen, one window or a browser tab with tab sound and microphone, in the browser, and fix permission and sound problems.
Free tools
Screenshot Mock-up Frames: Browser and Phone Frames for Screenshots
Put a screenshot in a browser window or phone frame on a gradient background with shadow, for slides, posts and app listings.
Free tools
Secret Santa Generator: Fair Draw, Couples Kept Apart and Private Reveal
Draw Secret Santa names fairly, stop couples drawing each other, set a gift budget, and reveal matches privately.
Free tools
Send a Blank WhatsApp Message or Empty Name: How It Works
Use invisible characters to send an empty WhatsApp message, blank name or status, and what to do if WhatsApp removes them.
Free tools
Senior Citizens Savings Scheme Calculator: Quarterly Interest and Limits
Work out SCSS quarterly interest for retirees, the deposit limit, tenure, extension and tax rules.
Free tools
Shagun and Gift Register: Record Gifts at Weddings and Functions
Note shagun and gifts at weddings and functions, see totals, and look up what each person gave and what you gave them.
Free tools
Shapes and Colours: 12 Shapes, 11 Colours, Mixing Paint and a Game
Learn 12 shapes and 11 colours with spoken names and everyday examples, mix paint colours, and play “tap the blue triangle”.
Free tools
Share a Riddle as an Image: Make a Riddle Picture for WhatsApp Status
How to turn one of our riddles, or your own, into a square or story-size picture with hidden, upside-down or shown answer, and share it.
Free tools
Shift Roster Planner: Rotating Duty Roster From a Pattern
Make a rotating day, night and off roster for your team from a shift pattern like DDNNOO, see daily cover, and print or download it.
Free tools
Shoe and Clothing Size Converter: UK, India, US, EU and Foot Length
Convert shoe sizes between UK, India, US, EU and foot length in cm for men, women and kids, find your size from your foot, and see clothing charts.
Free tools
Sight Words Flashcards: 220 Dolch Words With Audio and a Quiz
Practise the 220 Dolch sight words with spoken flashcards, “I know it” tracking, levels and a listening quiz.
Free tools
Sign PDF: Draw, Type or Upload Your Signature and Place It
Sign a PDF by drawing, typing or uploading a photo of your signature, place it on one page or every page, and know when an image signature is enough.
Free tools
Signature Maker: Draw or Type a Signature as a Transparent PNG
Create a signature by drawing or typing, download a transparent PNG for documents, and use it safely.
Free tools
Simple Interest Calculator: Formula, Months and Where It’s Used
Work out simple interest and total amount, enter time in months correctly, and know when simple interest applies.
Free tools
SIP Calculator: Future Value, Expected Returns and Realistic Planning
Estimate what a monthly SIP grows to, choose a realistic expected return, and understand why real results differ.
Free tools
Sleep Calculator: When to Sleep or Wake Up Using 90-Minute Cycles
Find the best times to go to bed or wake up so you wake at the end of a sleep cycle, and sleep better.
Free tools
Sliding Tile Puzzle: How to Play 3 × 3 to 6 × 6 or Use Your Own Photo
How to play the sliding tile puzzle (8-puzzle, 15-puzzle and bigger), use your own photo, and a simple method to solve it.
Free tools
Slug Generator: Clean URLs for Blogger, WordPress and Shops
Make short, readable URL slugs from titles, set the separator and length, and change the URL of a Blogger post.
Free tools
Snakes and Ladders: Play 2–4 Players on One Device, Rules and Options
How to play Snakes and Ladders online: 2–4 players, computer players, rolling the dice, house rules for sixes and exact 100.
Free tools
Solar Panel Calculator: System Size, Panels, Cost and Payback
Work out rooftop solar system size from your electricity use, panels and roof space, savings and payback, and India’s subsidy.
Free tools
Solar System Explorer: Planet Facts, Your Weight on Other Worlds and a Quiz
How to use the Solar System Explorer: tap moving planets for facts, pause the orbits, see your weight on the Moon, Mars or Jupiter, and play the space quiz.
Free tools
Solitaire (Klondike): Rules, Tap to Move, Hint, Undo and Finish
How to play Klondike solitaire online: Draw 1 or Draw 3, tap-to-move controls, the stock, foundations, Hint, Undo and Finish.
Free tools
Sort Lines: A to Z, by Length, Reverse and Shuffle
Sort a pasted list alphabetically, by length or randomly, and understand how numbers and capitals are sorted.
Free tools
Sound Level Meter: How Loud Is It Around You in Decibels?
Estimate noise in decibels with your microphone, see lowest, highest and average levels and a graph, and calibrate if needed.
Free tools
Space Typing Game: Lock On, Fire and Survive the Waves
How to play the Space Typing Game: type a first letter to lock on to a rock, finish the word to break it, protect three shields, and understand waves and score.
Free tools
Special Characters: Copy ₹, ✓, →, ½, °, ©, Greek and More
Find and copy hard-to-type characters in one tap, collect several at once, and see their Unicode codes.
Free tools
Speech to Text: Language, Accuracy, Punctuation and Privacy
Type by speaking in English, Hindi, Punjabi and many more languages, get more accurate results, and know where your voice is processed.
Free tools
Speech to Text: “Microphone Permission Was Blocked” or “No Speech Heard”
Allow the microphone for Speech to Text in Chrome, Edge or Safari, and get clearer results.
Free tools
Speech Typing or Read-Aloud “Not Available in This Browser”
Speech to Text and Text to Speech use features built into the browser. Here is which browsers support them.
Free tools
Speed, Distance and Time Calculator: Travel Time and Average Speed
Find travel time, distance or average speed, enter time in hours and minutes, and keep units matching.
Free tools
Spelling Game: Listen, Type and Learn, With Your Own School List
A self-marking spelling test: hear a word, type it, see which letters are right, get hints, and use your child’s own spelling list.
Free tools
Spirit Level: Check Shelves, Pictures and Floors With Your Phone
Use your phone’s tilt sensor as a spirit level, flat or on its edge, calibrate it, and fix motion permission problems.
Free tools
Split and Join Files: Send Big Files in Parts and Rebuild Them
Split a big file into numbered parts of any size to email or upload, and join the parts back into the original file.
Free tools
Split Expenses Calculator: Who Owes Whom After a Trip or Party
Enter who paid what, see each person’s fair share, and the fewest payments to settle up.
Free tools
Split PDF: Page Ranges, One File per Page and Errors
How to write page ranges, split every page or every few pages, and fix “those pages are not in this PDF”.
Free tools
SQL Checker: Find Syntax Errors and Dangerous Queries Before You Run Them
How to check SQL for MySQL, PostgreSQL, SQLite, SQL Server and more: syntax errors with the expected word, UPDATE without WHERE, = NULL and other traps.
Free tools
SQL Formatter: Format or Minify SQL for MySQL, PostgreSQL, SQL Server and More
How to format SQL with each clause on its own line, choose your database, keyword case and indent, or squeeze a query onto one line.
Free tools
SQL Playground: Practise SQLite Queries With Ready-Made Tables
How to practise SQL in your browser with sample customers and orders tables, open your own .sqlite file, and download the changed database.
Free tools
Square Root Calculator: Square, Cube and nth Roots
Find square, cube and any nth root, squares and cubes, and simplify roots by hand.
Free tools
Staff Salary Register: Salary After Absences, Advances and Bonus, With Slips
Work out monthly salary for shop staff, drivers and domestic help after absences, advances, bonus and deductions, record payments and print slips.
Free tools
Statistics and Regression Calculator: Variance, r and Best-Fit Line
Get descriptive statistics for a data set, fit a straight line to X and Y data, and read r and the slope.
Free tools
Step-up SIP Calculator: Increasing Your SIP Every Year
See how raising your SIP by a fixed percentage each year grows your corpus compared with a flat SIP.
Free tools
Steps to Distance Calculator: km, Calories and Steps per km
Turn step counts into distance and calories using your height and weight, and why step counters disagree.
Free tools
Sticky Notes: Colourful Notes on Your Screen, Saved Automatically
Keep colourful sticky notes on your screen for reminders, numbers and ideas: type, recolour, reorder, go full screen, and download.
Free tools
Stock and Crypto Profit Calculator: Profit, Return and Break-Even
Work out profit or loss on shares or crypto after fees, your percentage return, and the break-even sell price.
Free tools
Stock Register: Track Stock In, Stock Out and Low-Stock Alerts
Keep a simple stock book for a shop or godown: items, stock in and out, live balance, stock value and low-stock alerts, on your phone.
Free tools
Stopwatch and Timer: Laps to a Hundredth of a Second and a Beeping Timer
Use a precise stopwatch with lap times and a countdown timer that beeps and vibrates when time is up.
Free tools
Story Reader: Picture Stories Read Aloud With Words Lighting Up
How to use the Story Reader: choose one of eight original stories (two in Hindi), read a page or the whole story aloud, change reading speed or paste your own story.
Free tools
Study Planner and Exam Countdown: Daily Topics That Finish on Time
Add exams and syllabus topics, tick them off, and get a daily plan with revision days that finishes the syllabus before each exam.
Free tools
Subtitle Converter: SRT to VTT, Shift Times and Fix Drift
Convert subtitles between SRT, WebVTT and plain text, shift all times, and fix 23.976/25 fps drift so subtitles stay in sync.
Free tools
Sudoku: How to Play With Notes and Hints, or Solve Any Puzzle
How to play Sudoku online (Easy to Expert, notes, hints, undo) and how to type in a newspaper puzzle and let the solver finish it.
Free tools
Sukanya Samriddhi Calculator: Maturity, Deposits and Rules for SSY
Estimate Sukanya Samriddhi Yojana maturity for your daughter, understand the 15-year deposit and 21-year term, and withdrawal rules.
Free tools
Sunrise, Sunset and Prayer Times for Any City
Get sunrise, sunset, twilight, golden hour, day length and Islamic prayer times for any city, coordinates and date.
Free tools
SVG Optimiser: Make SVG Files Smaller With SVGO
How to shrink SVG files from Illustrator, Inkscape, Figma or Canva with SVGO, choose number precision, and compare before and after.
Free tools
SVG to PNG Converter: Sharp PNG, JPG or WebP From SVG at Any Size
Convert SVG files or code to PNG, JPG or WebP at any width, keep transparency, and fix SVGs that won’t convert.
Free tools
SWP Calculator: How Long Your Money Lasts With Monthly Withdrawals
Plan monthly withdrawals from a corpus, see how long it lasts, and pick a safe withdrawal amount for retirement income.
Free tools
Take-Home Pay Calculator: From Gross Salary to Money in Hand
Work out net pay per month, fortnight or week after tax, PF or social security and other deductions, in any country.
Free tools
Tally Counter: Count People, Laps, Stitches or Votes
Use big plus and minus buttons, several named counters and custom steps, with counts saved on your device.
Free tools
TDS Calculator: Sections, Rates and What Happens Without PAN
Work out TDS on professional fees, contracts, rent, commission and interest, and the higher rate when PAN is missing.
Free tools
Telegram and Signal Link Maker: One-Tap Chat and Share Links
Make t.me links by username or phone, share links with text, and Signal chat links, with checks for the right format.
Free tools
Temperature Converter: Celsius, Fahrenheit, Kelvin and Fever Check
Convert °C, °F, K, Rankine and Réaumur, quick mental formulas, and what body temperatures mean.
Free tools
Term vs Endowment Calculator: Buy Term and Invest the Rest?
Compare an endowment or money-back policy with a term plan plus investing the difference, for the same life cover.
Free tools
Test Data Generator: Fake Names, Phones and Addresses as CSV, JSON or SQL
Generate realistic fake people and records in India, US, UK or mixed styles as CSV, JSON, SQL INSERT, TSV or Markdown, with a repeatable seed.
Free tools
Text Cleaner: Fix Copied Text From PDFs, Websites and WhatsApp
Remove extra spaces, empty lines, broken line breaks, HTML tags, smart quotes and invisible characters from messy text.
Free tools
Text Compare (Diff): Reading the Colours, Lines vs Words
Compare two versions of a text, understand added and removed highlights, and choose line or word comparison.
Free tools
Text Repeater: Repeat Text or Emoji Many Times (and Sending Limits)
Repeat any text or emoji up to 10,000 times, choose what goes between copies, and what to know before sending it.
Free tools
Text Splitter: Making Threads for X, SMS and Instagram
Pick a size, number the parts, and why a part can be shorter than the limit.
Free tools
Text to Handwriting: Typed Text on Ruled or Graph Paper
Turn typed text into realistic handwriting on ruled, plain or graph paper, including Hindi, and download A4 pages.
Free tools
Text to PDF: Fonts, Paper Size and Hindi or Other Scripts
Turn typed or pasted text into a PDF, choose the font and paper, and what to do when Hindi or other letters don’t show.
Free tools
Text to Speech: Choosing a Voice, Hindi Voices and Reading Stops
Get text read aloud, pick a voice and language, change speed and pitch, and fix missing voices or reading that stops.
Free tools
Tic-Tac-Toe: Play the Computer at Three Levels or a Friend
How to play Tic-Tac-Toe (noughts and crosses) vs the computer (Easy, Medium, Unbeatable) or 2 players, scores, and winning tips.
Free tools
Tile Calculator: Tiles and Boxes for a Floor or Wall
Work out how many tiles and boxes you need for a floor or wall, choose the wastage allowance, and avoid running short.
Free tools
Time Card Calculator: Weekly Hours, Breaks, Overnight Shifts and Overtime
Enter clock-in and clock-out times each day to total weekly hours, breaks, overnight shifts, overtime and pay.
Free tools
Time Zone Converter: Meeting Times Across Cities and Daylight Saving
See a time in many cities at once, plan calls across countries, and handle daylight saving correctly.
Free tools
Times Tables: Hear Tables up to 20 and Quiz Yourself
See and hear any times table up to 20, read it up to ×10, ×12 or ×20, and quiz yourself with tricky facts repeated more often.
Free tools
Tip Calculator and Bill Splitter: Tipping and Splitting a Bill Fairly
Work out the tip and split a bill between friends, and know usual tipping customs in different countries.
Free tools
To-Do List: Tasks With Priorities, Due Dates and Filters
Keep a simple to-do list with priorities, due dates and filters, saved on your device and shareable on WhatsApp.
Free tools
Tone Generator: Pure Tones, Sweeps, Speaker Tests and WAV
Play pure tones from 20 Hz to 20 kHz, sweeps and musical notes, test left and right speakers, and save tones as WAV.
Free tools
Tournament Bracket Maker: Knockout Brackets With Seeding and Byes
Make a knockout bracket for cricket, carrom, chess or quiz tournaments with fair seeding and byes, tap winners through, and print it.
Free tools
Tower of Hanoi: How to Play 3 to 10 Discs and Use the Solver
How to play the Tower of Hanoi online, the fewest moves for each number of discs, the recursive trick and the step-by-step solver.
Free tools
Transliteration: Type Hindi, Punjabi, Tamil and More Using English Letters
How to type in Devanagari, Gurmukhi, Tamil, Bengali and other scripts with English letters, with rules for long vowels, hard letters and English words.
Free tools
Triangle Calculator: Solve Any Triangle From Sides and Angles
Find the missing sides and angles of any triangle from three sides, two sides and an angle, or two angles and a side.
Free tools
Tricky Riddles: How to Solve Wordplay Riddles and Read the Explanations
How to play our 40 tricky wordplay riddles: check answers, use hints without spoiling the trick, read the explanations and track solved ones.
Free tools
Trigonometry Calculator: sin, cos, tan and Inverse Functions
Find sin, cos, tan and their reciprocals for any angle in degrees or radians, and inverse trig values.
Free tools
Trim Video: Cut the Start and End, or Remove a Middle Part
Cut a video to the part you want, or remove a section from the middle, using Fast or Frame-exact mode, with one-tap start and end buttons.
Free tools
Trip Cost Calculator: Fuel, Tolls, Stay and Food Per Person
Plan a road trip budget with fuel, tolls, hotels, food and extras, and split it per person.
Free tools
Trivia Quiz: How to Play General Knowledge Rounds
How to play the general knowledge trivia quiz: topics, the 20-second timer, ten-question rounds, facts after each answer and sharing your score.
Free tools
TypeScript Checker: Get tsc Type Errors in Your Browser
How to use the TypeScript Checker: strict mode, unused variables, the compiled JavaScript, and what TS2322, TS2339 and TS7006 mean.
Free tools
Typing Certificate: Take a Timed Test and Download Your Certificate
How to get a typing certificate: enter your name, choose 1 to 5 minutes, take the test, then download the PNG or print it, with levels and the check code explained.
Free tools
Typing Finger Guide: Which Finger Types Each Key
How to use the Typing Finger Guide: see a finger-coloured keyboard on QWERTY, AZERTY, QWERTZ or Dvorak, press keys to learn fingers, and take the quiz.
Free tools
Typing Race: Beat the Ghost Car at Your Chosen WPM
How to use Typing Race: set the ghost car to 20–80 WPM or My best, choose Short or Long, win with 85% accuracy, and read the race result messages.
Free tools
Typing Speed Test: Check WPM and Accuracy Correctly
How to take the Typing Speed Test: choose 30 s to 5 min and Passages, Words or Hard, understand net and raw WPM, accuracy and your personal best.
Free tools
Typing Tutor: How to Learn Touch Typing Lesson by Lesson
How to use the Typing Tutor: 19 lessons from F and J to sentences, finger colours, the lit-up next key, 90% to pass, stars, and fixes for common problems.
Free tools
UK Income Tax Calculator: Take-Home Pay, NI and Personal Allowance
Work out UK income tax and National Insurance on a salary, include pension salary sacrifice, and know what’s not included.
Free tools
Unit Converter: Length, Weight, Volume, Area, Speed and More
Convert between 120+ units in 12 groups, choose US or UK units correctly, and understand rounding.
Free tools
Unit Price Calculator: Which Pack Is Cheaper?
Compare packs of different sizes and prices by price per gram, ml or piece, and spot fake “value packs”.
Free tools
Unix Timestamp Converter: Seconds vs Milliseconds and Time Zones
Convert Unix time to a date and back, tell seconds from milliseconds, and see the time in any zone.
Free tools
UPI Payment QR: Make a Scan and Pay QR Code for Your Shop
How to make a UPI QR code for any UPI app, add a fixed amount and note, download a Scan & Pay card, and avoid payment fraud.
Free tools
URL Encode and Decode: %20, Whole Links and Query Parts
Encode text for use in a link, decode %XX codes, split a link into its parts, and fix invalid percent-encoding.
Free tools
URL Shortener: Make Short Links With a Custom Ending
Turn long links into short v.gd links, choose a custom ending, reuse recent links, and fix shortening errors.
Free tools
URL Shortener: “Link Could Not Be Shortened”
Fix URL Shortener errors: service could not be reached, custom ending taken, or link not accepted.
Free tools
US Federal Income Tax Calculator: Brackets, Deductions and Effective Rate
Estimate US federal income tax for 2026, understand marginal vs effective rate, and what isn’t included.
Free tools
Username Generator: Ideas for Instagram, Games and Work Accounts
Get 20 username ideas from your name or a word, in cool, gamer, professional or cute styles, and check availability.
Free tools
UTM Link Builder: See Which Post or Message Brought Each Visitor
Add utm_source, utm_medium and utm_campaign to links with presets, keep tags consistent, and read the results in Google Analytics.
Free tools
UUID / GUID Generator: Version 4 UUIDs, Uniqueness and Formats
Generate one or thousands of random v4 UUIDs, copy or download them, and understand uniqueness and formats.
Free tools
VAT Calculator: Add or Remove VAT for the UK, EU, UAE and More
Add VAT to a net price or remove it from a gross price, pick your country’s rate, and avoid the reverse-VAT mistake.
Free tools
Vector Calculator: Add, Subtract, Dot and Cross Product, Angle
Work with 2D or 3D vectors: sum, difference, dot and cross product, magnitude and the angle between.
Free tools
Vehicle Fuel and Service Log: Real Mileage, Cost per km and Service Due
Log fuel fills and services for a bike or car, get real mileage between full tanks, cost per km, and service reminders.
Free tools
Vibration Tester: Test Phone Vibration With Patterns
Test your phone’s vibration with short, long, SOS, heartbeat and ringtone patterns, or make your own pattern.
Free tools
Video Converter: Change MP4, MOV, WebM, MKV and AVI Formats
Convert videos between MP4, WebM, MOV, MKV and AVI on your device, use Fast mode to keep full quality, and fix videos that won’t play.
Free tools
Video to GIF: Turn a Video Clip Into a Looping GIF
Make a GIF from part of any video: choose the start, length (up to 30 s), width and smoothness, and keep the GIF small.
Free tools
Video to MP3: Save the Sound of a Video as an MP3
Extract the audio from MP4, MOV, WebM, MKV or AVI videos as an MP3 at 128, 192 or 320 kbps, on your device, and fix videos with no sound.
Free tools
Voice Recorder: Record Voice Notes in the Browser and Save as WAV
Record your voice with pause and a level meter, play it back, and download it, also as WAV, with fixes for microphone problems.
Free tools
Voltage Drop Calculator: Cable Length, Wire Size and Losses
Work out voltage drop over a cable run for single or three phase, copper or aluminium, and keep it within limits.
Free tools
Volume Calculator: Tank Capacity in Litres, Boxes and Cylinders
Find the volume of boxes, round tanks, spheres, cones and pipes in litres, cubic feet and gallons.
Free tools
Waist-to-Hip Ratio Calculator: Measuring and Health Risk
Measure your waist and hips correctly, calculate the ratio, and understand WHO risk levels.
Free tools
Wallpaper Calculator: How Many Rolls You Need
Work out rolls of wallpaper from wall width and height, roll size and pattern repeat.
Free tools
Was My Password Leaked? Check a Password Against Known Data Breaches
How to check whether a password appears in the Have I Been Pwned breach database without revealing it, and what to do if it was leaked.
Free tools
Water Intake Calculator: How Much Water to Drink a Day
Estimate daily water needs from weight, exercise and climate, and signs you are drinking enough.
Free tools
Water Reminder: Daily Goal, One-Tap Logging and Reminders
Work out your daily water goal, log glasses in one tap, see the last 7 days, and get reminders while the page is open.
Free tools
Water Tank Capacity: Litres in Round, Rectangular and Horizontal Tanks
Work out the capacity of a round, rectangular or horizontal tank in litres and gallons, and how much water is in it now.
Free tools
Watermark Photos: Add Text or a Logo to Many Photos at Once
Add a text or logo watermark to photos in bulk, choose position, size and opacity, or tile it across the photo.
Free tools
Webcam Recorder: Record Video Messages and Take Photos
Record videos with sound from your webcam or phone camera, take photos, mirror and switch cameras, and fix camera permission problems.
Free tools
Webcam Test: Check Camera Resolution, Frame Rate and Name
Check that your webcam works, see its real resolution, aspect ratio, frame rate and name, and take a test photo.
Free tools
Week Number: ISO Week, US Week and the Dates in a Week
Find the ISO week number of today or any date, the US week number, and the first and last day of that week.
Free tools
Weight Converter: kg to lbs, Stones and Ounces
Convert body and parcel weight between kilograms, pounds, ounces and stones, including the stones-and-pounds style.
Free tools
What Day Was This Date: Find the Weekday of Any Date
Find the weekday for any past or future date, how far it is from today, and the same date in coming years.
Free tools
What Is My IP: See Your Public IP, ISP and Approximate Location
How to see your public IP address, ISP, ASN and approximate location, look up another IP, and understand private and shared addresses.
Free tools
What Is My User Agent: Read and Parse User-Agent Strings
See your browser’s user agent, version, system and screen, and parse any user-agent string from logs or analytics.
Free tools
What Should I Eat? A Fair Random Pick From 140 Dishes or Your List
End the “what shall we eat?” debate with a random pick filtered by meal, diet, cuisine and effort, or from your own list.
Free tools
What Type Is This File? Find a File’s Real Type From Its Bytes
Find what a file really is from its first bytes, whatever its name, and get a warning if the extension is wrong or misleading.
Free tools
WhatsApp Bold, Italic and Strikethrough Not Working? Formatting Help
How WhatsApp formatting symbols work, why bold sometimes shows as stars, and how to use lists, quotes and monospace.
Free tools
WhatsApp Chat Analyzer: Who Texts Most, Busiest Hours and Top Words
Get statistics from an exported WhatsApp chat or group, understand each chart, and fix missing or wrong numbers.
Free tools
WhatsApp Chat Viewer: Opening an Exported Chat, Photos and Search
How to export a WhatsApp chat, open it as chat bubbles with photos, set which person is you, and fix files that won’t open.
Free tools
WhatsApp DP Without Cropping: Fit the Full Photo in Your Profile Picture
Make a square WhatsApp profile picture that shows the whole photo, with a blurred or coloured background, and fix a DP that still looks cut.
Free tools
WhatsApp Fancy Fonts: Why Some Letters Show as Boxes
How stylish fonts work in WhatsApp, where you can use them, and why they sometimes appear as squares or can’t be searched.
Free tools
WhatsApp Group Description and Rules: Writing Them and Pinning Them
Create clear rules for family, school, society, business or office WhatsApp groups, add them to the description, and get members to follow them.
Free tools
WhatsApp Link and QR Code: Making wa.me Links That Work
Create a wa.me link and QR code for your shop or card, fix links that open the wrong number, and print QR codes that scan reliably.
Free tools
WhatsApp Price List: Send Your Menu or Rate List as a Message and Picture
Make a neat price list for a shop, restaurant or service, share it on WhatsApp as text or a picture, and keep prices up to date.
Free tools
WhatsApp Status Without Cropping or Blur: Status Sizer Help
Fit any photo into a 1080 × 1920 WhatsApp status or story without cutting the sides, and keep the quality as high as possible.
Free tools
White Noise: White, Pink, Brown, Rain, Fan and Ocean Sounds
Play white, pink or brown noise, rain, fan or ocean sounds made live in your browser, with a gentle sleep timer.
Free tools
Wi-Fi QR Code: Let Guests Join Your Wi-Fi by Scanning
How to make a Wi-Fi QR code and printable card, pick the security type, hide the password on the card, and fix codes that will not connect.
Free tools
Wind Chill and Heat Index Calculator: Feels-Like Temperature and Safety
Work out how hot or cold it really feels from temperature, wind and humidity, and the health advice for each level.
Free tools
Wire Size Calculator: Choosing Cable Size in mm² for a Load
Find the smallest cable size for a load and length that keeps voltage drop within limits and can carry the current.
Free tools
Word Counter: How Words, Characters and Reading Time Are Counted
Understand each count, why numbers differ from Word or Google Docs, and how to hit essay, bio and SEO limits.
Free tools
Word Frequency and Keyword Density: Reading the Results
What the percentages mean, skipping common words, and checking two-word phrases.
Free tools
Word Ladder: Change One Letter at a Time, Daily Ladder and Solver
How to play Word Ladder: daily and practice ladders, adding words, Hint and Undo, the shortest-ladder solver, and why words are rejected.
Free tools
Word Search Maker: Theme or Spelling-List Puzzles to Play or Print
How to make a word search: pick a theme or type your own words, choose 8×8 to 15×15 and Easy, Medium or Hard, find words on screen or print with answers.
Free tools
Word Search: How to Find Words, Make Your Own Puzzle and Print It
How to play Word Search online: themes and levels, selecting words by swiping or tapping, making a puzzle from your own spelling list, printing.
Free tools
Word to PDF: Convert .docx Files on Your Phone or Computer
Convert a Word .docx to PDF without Microsoft Word, choose between a picture PDF and selectable text with Print / Save as PDF, and fix old .doc files.
Free tools
Word to Text: Get Plain Text, Markdown or Clean HTML From a .docx
How to extract text from a Word document as plain text, Markdown or clean HTML without Office, and what to do with old .doc files.
Free tools
Working Days Calculator: Business Days Between Dates, Skipping Holidays
Count working days between two dates, choose the weekend (including Gulf weekends), and skip public holidays.
Free tools
World Clock: Live Time in Any City and Plan Calls
See the live time in any city with its UTC offset and how far ahead or behind you it is, and plan calls with a time slider.
Free tools
World Flags and Capitals Quiz: Four Games, Continents and a Flag Book
How to use the World Flags and Capitals Quiz: pick World or a continent, play Flag → country, Country → flag, Capitals or Capital → country, and browse All flags.
Free tools
XIRR Calculator: Real Return on SIPs and Irregular Investments
Find the yearly return when you invested and withdrew different amounts on different dates, and fix XIRR errors.
Free tools
XML Formatter: Beautify, Minify, Validate and Convert XML ↔ JSON
Format or minify XML, find what makes XML invalid, and convert between XML and JSON, including Blogger themes and sitemaps.
Free tools
XML Sitemap Generator: Make a Sitemap.xml for Google
Turn a list of page addresses into a valid sitemap.xml with last-changed dates, change frequency and priority, and submit it to Google.
Free tools
XML Validator: Check Well-Formed XML and See a Document Summary
Check sitemaps, feeds, invoices and config files for well-formed XML, find the line of any error, and read the summary of a valid file.
Free tools
YAML Validator: Check Docker Compose, GitHub Actions and Config Files
How to validate YAML with the exact line and column of errors, avoid tabs and the “Norway problem”, and see the parsed data as JSON.
Free tools
YAML ↔ JSON Converter: Indentation, Tabs and Error Lines
Convert YAML to JSON and back, fix YAML indentation and tab errors, and understand values that change type.
Free tools
Yes or No Decider: Let Chance Decide (and When Not To)
Ask a question and get a random Yes, No or Maybe, and use it to break ties on small decisions.
Free tools
Zip and Unzip Files Online: Make a ZIP, Open a ZIP and Errors
Pack files or a folder into a ZIP, open a ZIP on a phone, and fix password-protected or very large ZIP files.
Free tools
“This PDF Is Password-Protected”: What to Do
Why the PDF tools can’t open a locked PDF, and how to remove the password from your own file first.
