Web Formatter Logo JSON Formatter

This handy formatter will make sure your JSON data is properly indented and easy to read and use.

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JSON (JavaScript Object Notation) is the standard format for data exchange in modern applications, but minified or poorly formatted JSON is nearly impossible to read. Our JSON formatter transforms compressed JSON into beautifully structured, properly indented data that's easy to understand and debug.

Why format JSON?

API responses, configuration files, and data exports often come as single-line JSON strings that are difficult to parse visually. Proper formatting makes it simple to understand data structure, verify correctness, and spot errors. Our tool handles JSON of any complexity, from simple objects to deeply nested arrays and objects.

Using the JSON formatter

Paste your JSON data into the editor or upload a JSON file. The tool will automatically detect JSON syntax. Click FORMAT to beautify your data with proper indentation. Adjust the TAB SIZE if you prefer different spacing, then use COPY to grab the formatted JSON or DOWNLOAD to save it as a file. The formatter will also help identify syntax errors in invalid JSON.

The formatter works locally in your browser, no data is uploaded to the server.