Format, validate, and beautify JSON data with syntax highlighting and error detection.
Customize JSON formatting settings
Paste your JSON data here
Formatted JSON will appear here
Paste or type your JSON in the editor. You can also load a sample to get started quickly.
Select formatting settings like indentation size and whether to sort object keys alphabetically.
Click the “Format JSON” or “Minify JSON” button to view the result in real time.
Automatically beautify or minify your JSON with a single click.
Customize indentation, sorting, and validation based on your needs.
Easily copy the result or download it as a `.json` file for use in your projects.
Built with simplicity, performance, and error handling in mind—perfect for developers.
Whether you are debugging APIs or preparing JSON for production our formatter is ready to go.
Enter your text, upload your files, or configure your parameters directly into the interactive workspace at the top of this page.
Click the relevant action button (like convert, compress, or calculate) to begin processing. The results are calculated in real-time.
Instantly download your completed files or copy the results directly to your clipboard. All processed data remains safe.
Runs in milliseconds.
Processed locally in browser.
No premium paywalls.
Clean, modern, and simple.
We respect your confidentiality. Our JSON Formatter uses cutting-edge HTML5 APIs to complete your edits locally in your web browser. Absolutely no files or personal details are uploaded to external servers. Your data stays where it belongs — on your device.
Free online JSON formatter and validator. Beautify messy JSON code and validate syntax instantly.
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