Explosion Tools

JSON Formatter & Beautifier Online

Format, beautify, and validate JSON data. Free, no signup, works in your browser.

Formatted JSON will appear here…

All formatting happens in your browser. No data is sent to any server.

About JSON Formatter & Beautifier

This JSON formatter parses your raw JSON and outputs it with consistent indentation and structure. Choose between 2-space or 4-space indentation, or minify the JSON to remove all whitespace. The tool also validates your JSON and reports the exact position of any syntax errors. Useful for debugging API responses, formatting config files, and cleaning up minified JSON data.

Frequently Asked Questions

How do I format JSON online?
Paste your JSON into the input box above. The tool automatically formats it with proper indentation. Choose between 2-space or 4-space indentation using the buttons at the top.
Does this tool validate my JSON?
Yes. If your JSON has syntax errors, the tool shows the exact error message and position. This helps you quickly find and fix issues like missing commas, unmatched brackets, or invalid values.
Is my JSON data safe?
Yes. All formatting happens directly in your browser using JavaScript. No data is sent to any server. Your JSON never leaves your device.

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