Developer tools
JSON Formatter
Beautify, minify, and validate JSON in your browser — private and free.
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Version 1.0.0 · Last reviewed
JSON Formatter
Beautify, minify, and validate JSON entirely in your browser.
How it worksShow guideHide guide
Introduction
JSON Formatter helps you pretty-print or compress JSON payloads while validating syntax locally.
Step-by-step
- Paste JSON into the input.
- Choose indent size.
- Click Beautify or Minify.
- Copy the output.
Worked example
Beautifying {"a":1,"b":[2,3]} yields a readable multi-line document.
Use cases
- Clean up API responses for debugging
- Minify config files before shipping
- Catch invalid JSON before paste into code
Frequently asked questions
Is my JSON uploaded?
No. Parsing and formatting run entirely in your browser.
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