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Calculators
- Percentage CalculatorWork out X% of a number, what percentage one number is of another, and…
- BMI CalculatorCalculate body mass index from height and weight in metric or imperial…
- Age CalculatorFind an exact age in years, months and days from a date of birth, plus total…
- Days Between DatesCount the days, weeks and working days between two dates, with an option to…
- Loan Payment CalculatorEstimate a fixed monthly loan payment, the total repaid and the total…
- Compound Interest CalculatorSee how savings grow with compound interest and monthly deposits, and how…
- Tip CalculatorSplit a restaurant bill, add any tip percentage and get the amount each…
- Discount CalculatorFind the final sale price after one or two stacked discounts, how much you…
- VAT & Sales Tax CalculatorAdd tax to a net price or strip tax out of a gross price at any rate, and…
- Salary ConverterConvert pay between hourly, daily, weekly, monthly and yearly using your own…
- GPA CalculatorWork out a weighted grade point average from any number of courses, with…
- Average Calculator (Mean, Median, Mode)Paste any list of numbers to get the mean, median, mode, sum, count,…
- Standard Deviation CalculatorCalculate sample or population standard deviation, variance, mean and…
- Ratio CalculatorSimplify a ratio, scale it up or down, and solve a proportion when one of…
- Unit ConverterConvert length, weight, volume, area, speed, data and time units instantly,…
- Temperature ConverterConvert Celsius, Fahrenheit and Kelvin at the same time — type in any box…
- Daily Calorie Calculator (TDEE)Estimate resting metabolism and daily energy needs from age, height, weight,…
- Fuel Cost CalculatorWork out what a trip costs in fuel from distance, consumption and price per…
Converters
- Number Base ConverterConvert numbers between binary, octal, decimal and hexadecimal at once, with…
- Roman Numeral ConverterConvert numbers to Roman numerals and Roman numerals back to numbers, in…
- Aspect Ratio CalculatorResize images and videos without distortion: enter the original size and one…
- Unix Timestamp ConverterConvert Unix epoch timestamps to a readable date and back, in both seconds…
- PX to REM ConverterConvert pixels to rem and back for any root font size, with a reference…
Text tools
- Word CounterCount words, characters with and without spaces, sentences and paragraphs…
- Text Case ConverterSwitch text between uppercase, lowercase, title case, sentence case,…
- Remove Line BreaksStrip hard line breaks from pasted text while keeping paragraphs intact, and…
- Remove Duplicate LinesDelete repeated lines from a list, optionally ignoring capitalisation,…
- Text ReverserReverse text by character, flip the order of words in each line, or reverse…
- Lorem Ipsum GeneratorGenerate placeholder paragraphs, sentences or words for mockups and layouts,…
- URL Slug GeneratorTurn any title into a clean URL slug: accents removed, punctuation stripped,…
- Text Diff CheckerCompare two blocks of text line by line and highlight exactly which lines…
- Find and Replace TextReplace every occurrence of a word or pattern in pasted text, with…
- Reading Time CalculatorEstimate how long a text takes to read silently or to say out loud, with an…
- Morse Code TranslatorTranslate text into Morse code and Morse back into text, with letters,…
Developer tools
- Base64 Encoder and DecoderEncode text to Base64 and decode Base64 back to text, with full Unicode…
- URL Encoder and DecoderPercent-encode text for safe use in links and query strings, or decode an…
- HTML Entity EncoderEscape HTML special characters so code and text display literally on a page,…
- JSON Formatter and ValidatorPretty-print, minify, validate and sort JSON keys, with the exact error…
- CSV to JSON ConverterTurn CSV or tab-separated data into a JSON array of objects, with quoted…
- JSON to CSV ConverterConvert a JSON array of objects into CSV ready for Excel or Sheets, with…
- CSS MinifierShrink a stylesheet by removing comments and whitespace, collapsing hex…
- SHA Hash GeneratorGenerate SHA-1, SHA-256, SHA-384 and SHA-512 hashes of any text instantly,…
- UUID GeneratorGenerate version 4 UUIDs in bulk using the browser's cryptographic random…
- Regex TesterTest a regular expression against sample text with live highlighting, match…
CSS & color
- HEX to RGB ConverterConvert colours between HEX, RGB and HSL, with a live picker and the…
- Colour Palette GeneratorBuild a five-colour palette from any base colour using analogous,…
- CSS Gradient GeneratorBuild linear or radial CSS gradients with a live preview and copy the…
- CSS Box Shadow GeneratorDesign a CSS box-shadow with sliders for offset, blur, spread, colour and…
- Border Radius GeneratorRound each corner independently with sliders and copy the shortest valid CSS…
Image tools
- Image to Base64Turn an image into a Base64 data URL you can paste directly into HTML or…
- Image ResizerResize a photo to exact pixel dimensions and export it as JPEG, PNG or WebP…
- Image CompressorReduce the file size of a photo by adjusting JPEG or WebP quality, with a…
Random & time
- Password GeneratorCreate strong random passwords with your choice of length and character…
- Random Number GeneratorDraw random numbers in any range, one at a time or in bulk, with an option…
- Dice RollerRoll any number of dice with 4 to 100 sides, add a modifier, and see every…
- Countdown TimerSet a countdown in hours, minutes and seconds with a clear display, pause…
- Pomodoro TimerWork in focused intervals with automatic short and long breaks, a session…