🔧 Tired of bloated online JSON tools? Meet FormatJSONOnline.com — a free, fast, and clean tool to format, validate, and minify JSON in your browser.
Why I built it
As a frontend developer, I deal with JSON every day — API responses, config files, debugging logs, you name it.
But I got tired of bulky tools filled with ads, trackers, or slow UIs. So I decided to build something minimal, fast, and focused only on what devs actually need.
🔥 Key Features
- ✅ Format / Prettify JSON with clean indentation
- ✅ Validate JSON and highlight errors in real time
- ✅ Minify JSON for compact output
- ✅ YAML to JSON conversion
- ✅ YAML to XML conversion
✅ Dummy JSON Free sample JSON data for testing your applications and tools
🌙 Dark & Light Mode toggle
🧠 No login, no ads, no clutter — works 100% in-browser
🧪 Try it out now
👉 https://www.formatjsononline.com
Just paste your JSON or upload a .json file. Instantly see the structure or validate for errors — no reloads, no interruptions.
🚀 What’s next?
I’m actively working on:
- 📤 Schema Validation
- 📂 Dummy JSON Apis
Would love to hear what features you’d find useful!
💬 Let's Connect
Have feedback or feature ideas? Drop them below or reach out to me directly. I’d love to make this tool better for the dev community.
Thanks for reading — and happy debugging! 🧠
📌 Bookmark it for your next API project: https://www.formatjsononline.com