Developer Tools
Free developer utilities — JSON and SQL formatters, encoders, hash and UUID generators, regex testing and more. All client-side, nothing uploaded.
JSON Formatter Format, validate & minify JSON JSON ⇄ CSV Converter Convert between JSON and CSV Base64 Encode / Decode Encode & decode Base64 URL Encoder / Decoder Encode & decode URLs JWT Decoder Decode & inspect JWT tokens Regex Tester Test regex with live highlighting Code Diff Checker Compare two texts side by side HTML Entity Encoder / Decoder Encode & decode HTML entities Color Converter Convert HEX, RGB & HSL Lorem Ipsum Generator Generate placeholder text UUID Generator Generate UUIDs in bulk Hash Generator MD5, SHA-1, SHA-256 & more SQL Formatter Beautify & format SQL Markdown ⇄ HTML Convert Markdown to HTML Slug Generator Create clean URL slugs QR Code Generator Create custom QR codes Meta Tag Generator Generate SEO meta tags Cron Expression Generator Build & explain cron jobs YAML ⇄ JSON Convert YAML to JSON Code Minifier Minify HTML, CSS & JS