JSON Formatter & Validator
Format, minify, and validate JSON instantly in your browser.
How to use this tool
Paste your JSON into the input box on the left, then click Format to pretty-print it, Minify to compress it onto a single line, or Validate to check whether it's valid JSON. The result appears in the output box on the right, and any errors are shown below.
FAQ
Is this JSON formatter free to use?
Yes, this tool is completely free to use with no limits on how often you can use it.
Does my JSON data get uploaded anywhere?
No. All formatting, minifying, and validation happens directly in your browser. Your data never leaves your computer.
What happens if my JSON is invalid?
The tool will show a clear error message describing what's wrong with your JSON so you can fix it quickly.
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