JSON Formatter
Runs entirely in your browser
Beautify or minify JSON directly in your browser. Paste your JSON, choose an action, and copy the result.
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Status
0
Output characters
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How to use JSON Formatter
- Paste your JSON into the Input box.
- Choose an indent size, then click Beautify, or click Minify.
- Copy the result from the Output box.
Features
- Beautify JSON with 2 or 4 spaces, or a tab.
- Minify JSON to the smallest possible size.
- Clear error messages with line and column details for invalid JSON.
- 100% client-side — your data never leaves your browser.
Frequently Asked Questions
Is my JSON uploaded to a server?
No. JSON Formatter parses and formats your JSON directly in your browser. Your data never leaves your device.
What's the difference between Beautify and Minify?
Beautify adds line breaks and indentation to make JSON easy to read. Minify removes all unnecessary whitespace to make the JSON as small as possible.
What happens if my JSON is invalid?
You'll see an error message with the line and column where the problem was found, so you can fix it quickly.
Can I choose the indentation size?
Yes. Choose 2 spaces, 4 spaces or a tab character before clicking Beautify.