Free Developer Tools
A collection of fast, browser-based developer utilities for formatting, validating, encoding, testing and optimizing code and data.
JSON Tools
Code Formatters
XML Formatter
XML Formatter utility for code formatters
HTML Formatter
HTML Formatter utility for code formatters
CSS Formatter
CSS Formatter utility for code formatters
JS Formatter
JS Formatter utility for code formatters
Minifiers
Encoders & Decoders
Base64 Encoder
Base64 Encoder utility for encoders & decoders
Base64 Decoder
Base64 Decoder utility for encoders & decoders
URL Encoder
URL Encoder utility for encoders & decoders
URL Decoder
URL Decoder utility for encoders & decoders
Testing & Utilities
Regex Tester
Regex Tester utility for testing & utilities
UUID Generator
UUID Generator utility for testing & utilities
Hash Generator
Hash Generator utility for testing & utilities
Timestamp Converter
Timestamp Converter utility for testing & utilities
Color Converter
Color Converter utility for testing & utilities
Number Base Converter
Number Base Converter utility for testing & utilities
JWT Decoder
JWT Decoder utility for testing & utilities
Your code is processed locally in your browser for maximum privacy.
How to Use Free Developer Tools
Select a tool from the categories below.
Paste your code, text, or data into the editor.
Configure settings and click the action button (Format, Encode, etc.).
Copy or download your processed output instantly.
Features
Browser-side Processing
All tools run 100% in your browser. Your data never leaves your device.
Privacy First
We do not store or track any of the data you process with our tools.
Fast Performance
Optimized for speed and responsiveness, even for large code snippets.
Developer-Friendly UX
Clean, distraction-free interfaces built for developers and web professionals.