Introduction
The right tools make development faster, less error-prone, and more enjoyable. Whether you're a seasoned full-stack developer or just starting out, these online utilities should be in your daily workflow.
1. JSON Formatter & Validator
Debugging API responses is much easier when JSON is properly formatted. Our JSON Formatter validates your JSON and highlights errors while providing a beautifully indented output.
2. Base64 Encoder / Decoder
Base64 appears in authentication headers, data URIs, and encoded file transfers. Keep a Base64 tool handy for quick encode/decode operations.
3. URL Encoder / Decoder
Building query strings manually? A URL Encoder / Decoder prevents encoding mistakes that break your requests.
4. Regex Tester
Regular expressions are powerful but tricky. A Regex Tester with real-time highlighting makes it trivial to build and test patterns before putting them in production code.
5. Timestamp Converter
Unix timestamps appear in logs, databases, and APIs. A Timestamp Converter lets you instantly translate between epoch time and human-readable dates.
6. Word Counter
Whether you're writing documentation, blog posts, or README files, a Word Counter helps you hit the target length and estimate reading time.
7. HTML Formatter
Messy HTML templates are hard to maintain. An HTML Formatter applies consistent indentation so your markup is always readable.
8. Git (CLI)
No developer toolkit is complete without Git. Version control is non-negotiable for any project larger than a single file.
9. Postman / Insomnia
API testing tools let you send requests, inspect responses, and manage authentication — essential for REST and GraphQL development.
10. VS Code
Visual Studio Code remains the most popular code editor in 2025, with an enormous extension ecosystem covering every language and framework.
Conclusion
Bookmark our free Developer Tools page to access JSON formatter, Base64 encoder, URL encoder, regex tester, and more — all in one place, all free.