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JSON Formatter

Makes raw JSON in the browser readable, with folding and highlighting.

✓ No sign-upFree to useWorks locallyOpen sourceChrome Extensions
Add to Chrome Chrome Web Store

What is JSON Formatter?

JSON Formatter automatically formats raw JSON responses in the browser so they are easy to read. It adds syntax highlighting, collapsible trees and clickable links.

It is open source, fast even on large files and has a toggle to switch back to the raw text.

Key features

  • Automatic JSON formatting
  • Syntax highlighting and folding
  • Clickable URLs
  • Raw and formatted toggle

Pros

  • Makes API responses readable
  • Open source and fast
  • No account needed

Cons

  • Only formats JSON opened directly in a tab
  • No editing features

Best for

Debugging APIsReading JSON files in the browserWeb development

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JSON Formatter FAQ

Is JSON Formatter free?

JSON Formatter is free and open source.

Do I need an account to use JSON Formatter?

No. Install JSON Formatter from the Chrome Web Store and it works right away, without an account.

What are some alternatives to JSON Formatter?

Similar free tools that also work without an account include uBlock Origin Lite, Dark Reader, Privacy Badger, Consent-O-Matic, SponsorBlock and Return YouTube Dislike.

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