JSON Formatter/Validator

JSON utility

Validate, format and minify JSON without leaving the browser

Paste raw JSON, pretty-print it for inspection or minify it for transport. Parsing happens locally and returns clear validation feedback.

Workspace

Use the left panel for source JSON and the right panel for the transformed result.

Input JSON

0 characters0 linesSize 0 B0 tokens

Output

0 characters0 linesSize 0 B0 tokens

Quick notes

  • Objects, arrays, strings, numbers, booleans and `null` are supported.
  • Formatting happens automatically while you type or paste.
  • Formatting uses 2-space indentation for readability.
  • Minify removes whitespace without changing the JSON structure.
  • Parsing errors are shown directly in the output panel.

This was useful for you? Do you have a suggestion? Please, consider submit a PR on this project on GitHub