About

DevTools Online is a collection of free developer tools that run entirely in your browser.

Why We Built This

Most "online tools" sites are cluttered with ads, trackers, and dark patterns. We wanted something different: clean, fast, private tools that developers actually enjoy using.

What Makes Us Different

• 100% Client-Side — JSON formatting, diff checking, all processing happens in your browser. Nothing is ever uploaded to a server.
• No Sign-Up — Just open a tool and use it. No accounts, no emails, no BS.
• Minimal Ads — We keep it clean. No pop-ups, no auto-play videos, no "one weird trick" banners.
• Minimal & Fast — No bloated frameworks. Pages load instantly.

Current Tools

• JSON Tools — Format, validate, minify, and convert JSON ↔ CSV
• Diff Checker — Compare two texts side by side, line by line

More tools coming soon: Base64, URL encoder, UUID generator, regex tester, and more.

Contact

Questions, suggestions, or bug reports? Reach out at hello@YOUR-DOMAIN.com.