JSON Formatter
Format, validate, and minify JSON data with syntax highlighting
How to Use JSON Formatter
Quickly format, validate, or minify JSON data right in your browser. Ideal for debugging API responses, configuration files, and data payloads.
- 1
Paste your JSON
Paste raw or minified JSON into the input editor on the left. You can also click "Sample" to load example data.
- 2
View formatted output
The tool automatically formats your JSON with proper indentation. Choose 2 spaces, 4 spaces, or tabs.
- 3
Validate & fix errors
If your JSON has syntax errors, an error message will appear with the exact location so you can fix it.
- 4
Minify or copy
Use the Minify button to compress JSON for production use, or click Copy to copy the formatted output.
Frequently Asked Questions
What is a JSON formatter?
A JSON formatter takes unformatted or minified JSON data and reformats it with proper indentation and line breaks, making it easier to read and debug.
How do I validate JSON?
Paste your JSON into the input field. The tool will automatically detect and highlight any syntax errors with their location.
Can I minify JSON?
Yes, use the minify option to compress JSON by removing all whitespace, reducing file size for production use.
Is this tool free?
Yes, completely free with no signup required. All processing happens in your browser.
Is my data safe?
All processing is done client-side in your browser. No data is sent to any server.