Format
Turn compact JSON into readable, indented output.
Developer tool for Chrome
Clean JSON.
Zero friction.
Format, minify, and validate JSON from your toolbar. Private, fast, and built for everyday dev work.
0
Permissions
3
Core tools
1
Click access
Screenshots
Built for real workflows
A focused popup that handles the JSON tasks you reach for every day.
Minify
Compress JSON into a single line for APIs and logs.
Validate
Catch syntax issues before they cause problems.
Features
Everything you need today
No clutter. No accounts. Just JSON tooling that stays on your machine.
Smart formatting
Prettify nested objects and arrays with consistent 2-space indentation.
One-line minify
Strip whitespace instantly for payloads, configs, and production builds.
Live validation
Get immediate feedback on syntax errors with helpful messages.
Copy output
Send formatted results straight to your clipboard.
Sample loader
Try the tool instantly with a built-in example JSON payload.
100% local
Your JSON never leaves the browser. No servers, no tracking.
Roadmap
New features coming soon
We're actively building the next wave of JSON tools for this extension.
On the way
These features are planned and in development. Stay tuned for updates in the Chrome Web Store.
01
Tree view explorer
Browse large JSON structures in a collapsible tree instead of raw text.
02
Sort keys alphabetically
Normalize object key order for diffs, reviews, and consistent configs.
03
JSON ↔ YAML conversion
Convert between JSON and YAML formats without leaving the popup.
04
Search & highlight
Find keys and values quickly inside large JSON documents.
05
Escape / unescape strings
Fix escaped characters and unicode in string values with one action.
06
History & favorites
Save recent formats locally for quick re-use during dev sessions.
Thank you for installing JSON Formatter
We're excited to help you work with JSON faster — and even more features are on the way.