Fast, free online tools for developers and creators. No ads. No tracking. Just utilities that work.
18 tools available
Convert between JSON and CSV formats instantly
Generate UUIDs (v4, v7) individually or in bulk
Encode and decode Base64 strings and files
Compress images to specific file sizes (100kb, 50kb, 20kb)
Test and debug regular expressions with live matching
Count words, characters, sentences and reading time
Generate QR codes for URLs, WiFi, contacts and more
Compare two texts and highlight the differences
Generate strong, random passwords with custom length and character sets
Generate MD5, SHA-1, SHA-256 and SHA-512 hashes from text or files
Encode and decode URLs with percent-encoding or Base64
Convert Unix timestamps to dates and back. Supports seconds, milliseconds, and timezones
Convert between HEX, RGB, HSL and HSV. Visual picker, contrast checker, and preset palette
Decode and inspect JSON Web Tokens. View header, payload, claims and expiry
Write and preview Markdown in real time. Split view, export as HTML
Build and validate cron expressions. See next run times and human-readable descriptions
Generate placeholder text in paragraphs, sentences or words. Classic or hipster variant
Beautify, validate and minify JSON. Syntax highlighting, key sorting, and stats