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Hundreds of tools for text, images, development and conversion. Everything runs right in your browser — your data never leaves your device.
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✨ Popular tools
Popular Code generators ▣ QR code Create a QR code with a logo and any colors. PNG and SVG. Free, no signup. Popular Code generators ▥ Barcodes Code 128, EAN-13 and ITF-14 barcodes for marketplaces and logistics. PNG and SVG. Popular Code generators ▦ DataMatrix Create a DataMatrix code: size settings, download as PNG and SVG. Free. Popular Code generators ⛃ UUID generator Generate v4 UUIDs in your browser. Any count, one-click copying. Popular Developer tools { } JSON Formatter Format, minify and validate JSON with error highlighting. Data never leaves your browser. Popular Developer tools 64 Base64 encoder Encode text to Base64 and back. UTF-8 and binary data support. Popular Developer tools ◈ JWT Decoder Decode a JWT token in your browser: header, payload and signature. Data never leaves your device. Popular Developer tools № Number base converter Convert a number between decimal, binary, octal and hexadecimal bases. Instantly in your browser. Popular Text tools № Text counter Count characters, words, paragraphs, sentences and reading time in any text. A fast, free online counter that updates the statistics as you type. Popular Unit converters ⇔ Length converter Convert length between meters, kilometers, centimeters, feet, inches, yards and miles. Instant results, free, no signup, runs entirely in your browser. Popular Unit converters ⚖ Weight converter Convert weight between grams, kilograms, tonnes, ounces, pounds and stones. Accurate results online, free, no signup, runs entirely in your browser. Popular Unit converters ㏄ Volume converter Convert volume between litres, millilitres, cubic metres, gallons, quarts, pints and cups. Free, private — runs entirely in your browser. Popular Unit converters » Speed converter Convert speed between m/s, km/h, miles per hour, knots and feet per second. Accurate results online, free, no signup, runs entirely in your browser. Popular Unit converters ⬢ Data size converter Convert data size between bits, KB, MB, GB and TB. Handy for disks, files and traffic. Free, no signup, runs entirely in your browser. Popular Unit converters 🌡 Temperature converter Convert temperature between Celsius, Fahrenheit and Kelvin. Instant, accurate results, free, no signup, runs entirely in your browser. Popular Color tools ◐ Color converter Convert colors between HEX, RGB and HSL formats. Instant result, preview and one-click copying. Popular Date & time ⏱ Unix time Convert Unix timestamp to a human-readable date and back in seconds. Second precision, current time, free. Popular Date & time ⇇ Date difference Calculate the difference between two dates in days, weeks, months and years. Simple online calculator, free. Popular Calculators % Percentage calculator Calculate a percentage of a number: how much N percent of a given value is. Fast and free. Popular Calculators ◉ Tip calculator Calculate a tip and split the bill among several people. Tip amount and total per person — instantly. Popular Calculators ₸ VAT calculator Add VAT to an amount or extract it from an amount. Calculation with any rate, including 12%. Popular Calculators ⚖ BMI calculator Calculate your body mass index (BMI) from height and weight. Get the result and weight category: normal, overweight, underweight. Popular Crypto & security ⚿ Password generator Generate a strong random password of any length right in your browser. Data never leaves your device, free. Popular Color tools ◐◑ Contrast checker Check the contrast of two colors against WCAG AA/AAA for accessibility. Instant result in your browser. Popular Color tools ▢ Aspect ratio Compute the aspect ratio from width and height, including the golden ratio. Fast and free in your browser.
▦ Code generators
All →Create QR codes, barcodes, DataMatrix codes and UUIDs online. Free code generators that run directly in your browser.
Popular Code generators ▣ QR code Create a QR code with a logo and any colors. PNG and SVG. Free, no signup. Popular Code generators ▥ Barcodes Code 128, EAN-13 and ITF-14 barcodes for marketplaces and logistics. PNG and SVG. Popular Code generators ▦ DataMatrix Create a DataMatrix code: size settings, download as PNG and SVG. Free. Popular Code generators ⛃ UUID generator Generate v4 UUIDs in your browser. Any count, one-click copying.
⌘ Developer tools
All →Format JSON, decode JWT, encode Base64 and inspect URLs. Fast developer tools that process data locally in your browser.
Popular Developer tools { } JSON Formatter Format, minify and validate JSON with error highlighting. Data never leaves your browser. Popular Developer tools 64 Base64 encoder Encode text to Base64 and back. UTF-8 and binary data support. Popular Developer tools ◈ JWT Decoder Decode a JWT token in your browser: header, payload and signature. Data never leaves your device. Developer tools 🔗 URL parser Break a URL into its parts: protocol, host, path, query params and hash. All in your browser. Developer tools # Hash generator Compute MD5, SHA-1, SHA-256 or SHA-512 hashes of your text. Data is processed locally in your browser. Popular Developer tools № Number base converter Convert a number between decimal, binary, octal and hexadecimal bases. Instantly in your browser.
✎ Text tools
All →Count characters and words, change case, clean lines and create slugs. Free text utilities that run in your browser.
Popular Text tools № Text counter Count characters, words, paragraphs, sentences and reading time in any text. A fast, free online counter that updates the statistics as you type. Text tools Aa Text case converter Convert text to UPPERCASE, lowercase, title case, camelCase, snake_case and kebab-case. Free case converter that runs right in your browser. Text tools ⌫ Text cleaner Remove extra spaces, blank lines and duplicate lines from text. A free text cleaner in your browser — your data never leaves your device. Text tools 🔗 Slug generator Turn a title into a URL slug: transliteration, lowercase, hyphens. An SEO slug generator for WordPress, CMS and marketplaces. Free, runs in your browser. Text tools ¶ Lorem Ipsum generator Generate Lorem Ipsum for mockups and layouts: choose the number of paragraphs and copy it with one click. Free, no signup. Text tools ⇄ Reverse text Reverse your text: mirror the order of characters and words. A free online text reverser that runs right in your browser.
⇄ Unit converters
All →Convert length, weight, temperature, speed, volume and data sizes. Free unit converters with instant results in your browser.
Popular Unit converters ⇔ Length converter Convert length between meters, kilometers, centimeters, feet, inches, yards and miles. Instant results, free, no signup, runs entirely in your browser. Popular Unit converters ⚖ Weight converter Convert weight between grams, kilograms, tonnes, ounces, pounds and stones. Accurate results online, free, no signup, runs entirely in your browser. Popular Unit converters ㏄ Volume converter Convert volume between litres, millilitres, cubic metres, gallons, quarts, pints and cups. Free, private — runs entirely in your browser. Popular Unit converters » Speed converter Convert speed between m/s, km/h, miles per hour, knots and feet per second. Accurate results online, free, no signup, runs entirely in your browser. Popular Unit converters ⬢ Data size converter Convert data size between bits, KB, MB, GB and TB. Handy for disks, files and traffic. Free, no signup, runs entirely in your browser. Popular Unit converters 🌡 Temperature converter Convert temperature between Celsius, Fahrenheit and Kelvin. Instant, accurate results, free, no signup, runs entirely in your browser.
◐ Color tools
All →Convert colors between HEX, RGB and HSL, check contrast and create CSS. Free color utilities for designers and developers.
Popular Color tools ◐ Color converter Convert colors between HEX, RGB and HSL formats. Instant result, preview and one-click copying. Popular Color tools ◐◑ Contrast checker Check the contrast of two colors against WCAG AA/AAA for accessibility. Instant result in your browser. Color tools ▤ CSS gradient Create a CSS linear-gradient from two colors and an angle. Ready-to-copy code, free in your browser. Color tools ▭ Box-shadow Build a CSS box-shadow from offset, blur, spread and color. Ready code, free in your browser. Popular Color tools ▢ Aspect ratio Compute the aspect ratio from width and height, including the golden ratio. Fast and free in your browser.
⌚ Date & time
All →Convert Unix timestamps, compare dates and calculate the difference between them. Fast free date and time tools.
∑ Calculators
All →Calculate percentages, VAT, tips and BMI online. Simple free calculators that give accurate results in seconds.
Popular Calculators % Percentage calculator Calculate a percentage of a number: how much N percent of a given value is. Fast and free. Popular Calculators ◉ Tip calculator Calculate a tip and split the bill among several people. Tip amount and total per person — instantly. Popular Calculators ₸ VAT calculator Add VAT to an amount or extract it from an amount. Calculation with any rate, including 12%. Popular Calculators ⚖ BMI calculator Calculate your body mass index (BMI) from height and weight. Get the result and weight category: normal, overweight, underweight.
⚿ Crypto & security
All →Generate strong passwords and random strings, or calculate hashes. All operations run locally in your browser.
⚡ No data upload All tools run in your browser. Your files and text never leave your computer.
🖨 PNG & SVG Download results in raster and vector formats for any task.
∞ No signup No limits, no accounts. Open a page and use it as much as you like.