Developer Tools Tools

Format, validate, and beautify JSON with syntax highlighting

Test regular expressions with live match highlighting

Generate placeholder text for designs and mockups

Convert special characters to HTML entities

Compress and beautify CSS code

Compress and beautify JavaScript code

Build cron schedules visually with presets

Complete reference for all HTTP status codes

Live markdown to HTML preview with export

Format SQL queries with proper indentation

Encode and decode Base64 strings instantly

Encode and decode URL strings and query parameters

Generate MD5, SHA-1, SHA-256 hashes from text

Pick colors and convert between HEX, RGB, HSL

Convert Unix timestamps to human-readable dates

Generate random GUIDs/UUIDs for your applications

Decode and inspect JWT tokens safely

Compare text differences side-by-side

Generate QR codes for URLs and text