Free Developer Tools - JSON, Regex, UUID, and More

FORMAT & VALIDATE

Validate, minify, and beautify JSON

Obfuscate, minify, or beautify JavaScript code

Minify and beautify CSS

Minify and beautify HTML

Preview a markdown file and convert it to HTML

Generate v4 UUIDs

Generate MD5, SHA-1, or SHA-256 hashes

Generate placeholder text for designs and mockups

Encode and decode Base64, Base62, Base36

Encode and decode URLs for use in query strings and parameters

Encode and decode HTML entities

Convert between Unix timestamps and readable dates

Pick, convert, and compare colors

Test regular expressions and see matches in real time

Decode and inspect JWT tokens

Compare two blocks of text and optionally merge them

Build a schedule and generate cron