Format, validate, encode, decode, and generate code, hashes, and tokens with 100% client-side privacy.
Format, validate, beautify, and minify complex JSON payloads with error line markers and statistics.
Test regular expressions in real time with syntax error detection, match highlighting, and capture groups.
Inspect and decode JSON Web Tokens. View JOSE headers, payload claims, and token expiration status.
Side-by-side text and code diff comparison tool with added, removed, and modified line highlighting.
Convert HEX, RGB, and HSL values with instant WCAG 2.1 AA/AAA accessibility contrast ratio checks.
Encode and decode UTF-8 text strings to and from Base64 format with Unicode safe handling.
Compute cryptographic hashes (SHA-256, SHA-512, SHA-1) using hardware-accelerated Web Crypto API.
Generate cryptographically random RFC 4122 Version 4 UUIDs in bulk with uppercase and hyphen options.
