Developer API ToolboxEverything developers need
🚀 Free Developer Tools

Free Developer API Toolbox

Format JSON, decode JWTs, generate UUIDs, convert Unix timestamps, encode Base64, and more—all in one place.

Popular Tools

Everything you need for day-to-day development.

JSON Formatter
Formatter⭐ Featured

Format, validate, and minify JSON effortlessly.

JWT Decoder
Security⭐ Featured

Decode JWT tokens instantly without sending data to a server.

UUID Generator
Utilities⭐ Featured

Generate RFC-compliant UUID v4 values.

Base64 Encoder / Decoder
Encoding⭐ Featured

Encode and decode Base64 strings quickly.

Timestamp Converter
Date & Time⭐ Featured

Convert Unix timestamps into human-readable dates.

URL Encoder / Decoder
Encoding⭐ Featured

Encode and decode URLs for safe transmission over the web.