JSON Formatter
Prettify and validate complex JSON data for better readability.
Output will appear here...
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How to use JSON Formatter
Paste your unformatted or minified JSON into the input editor.
Click the key format options to choose between 2-space or 4-space indentation.
Instantly view the beautified JSON in the output editor.
Use the copy button to grab the formatted code.
Frequently Asked Questions
Is my JSON data safe?
Yes, absolutely. The formatting is done entirely within your browser using JavaScript. No data leaves your device.
Can it handle large files?
Yes, it's optimized for performance and can handle significantly large JSON payloads without freezing.
Does it validate JSON?
Yes, if your JSON is invalid, it will show you exactly where the syntax error is located.
Why use Kitbase JSON Formatter?
Syntax Validation
Automatically detects and highlights errors in your JSON structure.
Collapsible Trees
Interactive viewer allows you to expand and collapse JSON objects and arrays.
Privacy Focused
All processing happens in your browser. Your data is never sent to our servers.
Minification
Quickly compress your JSON to remove whitespace for production use.