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JSON Formatter

Format and beautify JSON online. Pretty-print minified JSON, validate structure and copy readable output.

  • Private when possible
  • No account required

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About this tool

JSON Formatter turns one-line API responses into indented, readable structures so debugging and documentation stop being a squint contest.

How to use

  1. Paste raw JSON.
  2. Format / beautify the payload.
  3. Fix any reported syntax errors.
  4. Copy the pretty-printed result.

Features

  • Pretty-print indentation
  • Basic syntax validation
  • Works fully in-browser
  • No account required

Common use cases

  • Debug API responses
  • Prepare config samples
  • Readable diffs for teammates

Supported formats

JSON

Privacy

This tool processes data in your browser. Your content is not uploaded to our servers.

Limitations

  • Extremely large payloads may be limited by browser memory.
  • Formatting does not transform JSON Schema or convert to other data formats.

Frequently asked questions

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