A curated collection of the most useful tools for web development. From JSON formatting to regex testing, encoding utilities to color picking - everything you need to code efficiently.
Format, validate, and beautify JSON data
Test and debug regular expressions with live matching and highlighting
Base64, URL, HTML entities, and more encodings in one tool
Create, decode, and inspect JSON Web Tokens (JWT) instantly
Generate unique UUIDs (v4) instantly with bulk generation and validation
Generate MD5, SHA-1, SHA-256, SHA-512, and HMAC hashes
Pick colors from your screen or input values in any format
Generate CSS for shadows, flexbox, grid, and unit conversions
