JSON Formatter

Paste raw JSON to instantly validate, beautify with syntax highlighting, or minify it for production. Clear error messages pinpoint invalid JSON.

Input
Output

How to Use the JSON Formatter

  1. Paste your raw JSON into the input area, or click Import File to load a .json file directly from your computer.
  2. The formatter validates your input as you type — errors appear in the status bar with a description and line number.
  3. Click Format to display beautifully indented, syntax-highlighted JSON in the output panel.
  4. Click Minify to compress the JSON into a single line for production use.
  5. Use Copy to copy the current output to your clipboard.
  6. Use Save to download the formatted or minified output as a .json file.
  7. Use Clear to reset the editor. Your last input is auto-saved in your browser so it survives a page reload.

About This Tool

This JSON formatter doubles as a JSON validator, JSON beautifier, JSON linter, and JSON minifier. Paste any raw or malformed JSON to instantly detect syntax errors with precise line numbers, then format it with clean indentation and syntax highlighting — or compress it to a single line for production use.

Also works as a JSON pretty printer, JSON fixer, and JSON file viewer. Import .json files directly and export formatted or minified output. Your last input is auto-saved in the browser so it survives page refreshes.