Developer Tools
Free online developer tools for JSON formatting, JWT decoding, UUID generation, Base64 encoding, and more. Essential tools for developers.
JSON Formatter
Format, validate, and beautify JSON data instantly. Free online JSON formatter with syntax highlighting, error detection...
JWT Decoder
Decode and analyze JWT tokens instantly. Free online JWT decoder with header, payload, and signature inspection.
UUID Generator
Generate universally unique identifiers (UUIDs) instantly. Free online UUID generator with bulk generation support.
Base64 Encoder/Decoder
Encode and decode Base64 data instantly. Free online Base64 encoder/decoder for text and files.
API Tester
Test REST APIs instantly with our free online API tester. Send GET, POST, PUT, DELETE requests with custom headers and b...
XML to JSON ConverterComing Soon
Convert XML data to JSON format
URL Encoder/DecoderComing Soon
Encode and decode URLs
Hash GeneratorComing Soon
Generate MD5, SHA-1, SHA-256 hashes
Regex TesterComing Soon
Test and debug regular expressions
Color PickerComing Soon
Pick colors and get HEX, RGB, HSL values
About Developer Tools
Our collection of developer tools is designed to make your development workflow faster and more efficient. All tools run entirely in your browser - no data is sent to our servers, ensuring complete privacy and security. Perfect for web developers, API testing, debugging, and code formatting.
🔧 Code Formatting
Format and validate JSON with syntax highlighting. Encode and decode Base64, URLs, and more. All processing happens instantly in your browser.
🚀 API Development
Test REST APIs with our built-in API tester. Decode JWT tokens, generate UUIDs, and work with authentication tokens seamlessly.
✨ Key Features
- ✓100% Browser-based: All processing happens locally - your data never leaves your device
- ✓Free Forever: No registration, no limits, completely free
- ✓Fast & Efficient: Optimized for performance with instant results
- ✓Dark Mode: Easy on the eyes for long coding sessions