Free online tools

Small, fast tools for everyday tasks. Everything runs in your browser. · 35 tools

Text

Word counter Count words, characters, sentences and paragraphs as you type. Case converter Change text to UPPERCASE, lowercase, Title Case, Sentence case and more. Remove duplicate lines Delete repeated lines from a list, optionally trim and sort. Lorem Ipsum generator Placeholder text by paragraphs, sentences or words. Text compare (diff) Find added, removed and changed lines between two texts. URL slug generator Turn a title into a clean URL slug, with Cyrillic transliteration. Sort lines Sort a list alphabetically, numerically, by length, reversed or shuffled. Number to words Spell out a number or an amount of money in words.

Converters

Unit converter Length, weight, temperature, area, volume and speed. Base64 encode / decode Convert text to Base64 and back, with full Unicode support. Color converter HEX, RGB and HSL in any direction, with a live preview. Binary, hex, decimal converter Convert numbers between binary, octal, decimal and hexadecimal.

Images

Image converter (JPG, PNG, WebP) Convert images between JPG, PNG and WebP right in the browser. Image compressor Reduce photo file size with a quality slider and optional resize. Image resizer Resize an image to exact pixels or a percentage, keeping proportions.

Calculators

Percentage calculator What is X% of Y, what percent is X of Y, and percent change. Age & date difference calculator Exact age or time between two dates in years, months and days. BMI calculator Body mass index from height and weight, metric or imperial. Loan & mortgage calculator Monthly payment, total interest and payoff schedule for any loan. Calorie calculator (BMR & TDEE) Daily calories to maintain, lose or gain weight, by Mifflin-St Jeor. Date calculator Add or subtract days, weeks, months and years from a date. Days until an event.

Generators

Password generator Strong random passwords with your choice of length and characters. UUID generator Generate one or many random UUID v4 identifiers. Random number generator Random integers in a range, with or without repeats. QR code generator QR codes for links, text and Wi-Fi, downloadable as PNG or SVG. Random picker Pick one or several random items from a list of names or options.

Developer

JSON formatter & validator Pretty-print, minify and validate JSON with clear error messages. URL encode / decode Percent-encode strings for URLs or decode them back to readable text. Hash generator (MD5, SHA-256) MD5, SHA-1, SHA-256 and SHA-512 of text or a file. Regex tester Test JavaScript regular expressions with live match highlighting and groups. JSON to CSV converter Turn an array of JSON objects into a CSV table, nested keys flattened. Unix timestamp converter Convert Unix time to a readable date and back, in UTC and your timezone. HTML entities encode / decode Escape special characters for HTML or decode entities back to text. JWT decoder Decode a JSON Web Token header and payload, check expiry. Markdown preview Write Markdown and see the rendered result side by side. Export HTML.