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Self-healing parser
Understands JSON5, removes trailing commas, repairs smart quotes, and returns pristine JSON.
Why this JSON formatter?
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Instant structure insights
Track key counts, arrays, depth, and payload size to reason about complex APIs.
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Privacy-first
Everything runs locally—no uploads, servers, or telemetry.
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Workflow friendly
Sort keys deterministically, minify responses, and copy validated JSON in one click.
Frequently asked questions
What makes this formatter “smart”? ⌄
It understands common mistakes...
Is my JSON uploaded anywhere? ⌄
Never...
Can I sort keys deterministically? ⌄
Yes. Enable “Sort keys A→Z”...
Does it handle gigantic files? ⌄
The formatter comfortably handles payloads over 1 MB thanks to streaming parsing and optimized rendering.
What is the Visual Tree view? ⌄
Tree view renders your JSON as an interactive, collapsible node tree so you can navigate deeply nested structures without scrolling through raw text.
Can I minify JSON as well as beautify it? ⌄
Yes. The Minify button strips all whitespace and returns the most compact valid JSON, ideal for API payloads and production configs.
What indentation styles does the formatter support? ⌄
You can choose 2-space, 4-space, or tab indentation from the toolbar to match your project's code style.
Does the JSON formatter work on mobile? ⌄
Yes. The editor is fully responsive and works in any modern mobile browser, though a desktop or tablet gives the best experience for large payloads.