Free Online Developer Tools
Format JSON, preview HTML, test API responses, encode Base64, decode JWT tokens and generate secure hashes instantly.
Popular Developer Tools
Explore our most used developer utilities for coding, debugging and productivity.
API Response Formatter
Beautify and analyze REST API JSON responses instantly.
Base64 Decoder
Decode Base64 strings into readable text for API debugging and development.
Base64 Encoder
Convert text, JSON and API values into Base64 encoding instantly.
Color Converter
Convert HEX colors into RGB values for CSS and UI work.
CSS Minifier
Compress CSS code into smaller production-ready output.
Hash Generator
Generate hash values for text using common hashing algorithms.
HTML Entity Decoder
Decode escaped HTML entities back into readable text.
HTML Entity Encoder
Encode special characters into safe HTML entities.
HTML Formatter
Clean and format messy HTML code instantly.
HTML Viewer
Run and preview HTML code online.
Explore All Tools
Browse all developer tools including JSON, API, security, generators and formatters.
Latest Developer Guides
Improve your coding workflow with practical development tutorials and guides.
What is JSON Formatter and Why Developers Use JSON Beautifiers
Learn how JSON formatters help developers read, debug and validate API responses faster.
JWT Authentication Explained: How JSON Web Tokens Work
Understand JWT tokens, headers, payloads, signatures and secure API authentication.
How to Generate Strong Passwords for Better Security
Learn password security rules and how strong password generators protect accounts.
Free Online Developer Tools and Utilities
DevToolPlace provides a collection of fast, secure and free online developer tools designed to simplify everyday programming tasks. Format code, validate data, generate secure values and debug applications directly from your browser.
Available Developer Tools
- ✓ JSON Formatter and JSON Validator
- ✓ JWT Decoder, Generator and Verifier
- ✓ Base64 Encoder and Decoder
- ✓ HTML Formatter and Live Preview
- ✓ API Response Formatter
- ✓ Secure Password Generator
- ✓ Hash Generator Tools
- ✓ More developer utilities added regularly
Why Use DevToolPlace?
All tools are browser based, fast loading and created for developers, testers and software engineers. No signup or installation is required. New programming tools are continuously added to improve developer workflow.