Is syntax highlighting included?

Yes, the formatted output includes color-coded syntax highlighting for both JSON and XML, making it easy to read and understand the structure.

Can I copy the formatted output?

Yes, click the Copy button to copy the formatted output to your clipboard. You can then paste it into your code editor or documentation.

Is there a size limit?

The formatter works entirely in your browser, so the only limit is your device memory. It handles most API responses without any issues.

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API Response Formatter — JSON & XML Pretty Print

Paste raw JSON or XML API responses to auto-detect, format, and syntax-highlight them. Copy the formatted output with one click.

Paste JSON or XML

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API Response Formatter — Pretty Print JSON and XML

Working with API responses often means dealing with minified, hard-to-read data. Our formatter automatically detects whether your input is JSON or XML, pretty-prints it with proper indentation, and applies syntax highlighting for easy reading.

How It Works

Paste your raw API response into the input field and click Format. The tool detects the format, validates the structure, and outputs beautifully formatted code with color-coded syntax highlighting.

Supported Formats

Both JSON and XML are fully supported. JSON is formatted with 2-space indentation. XML is formatted with proper nesting and attribute formatting.

Frequently Asked Questions

Yes, the formatter automatically detects whether your input is JSON or XML and formats it accordingly.

Yes, the formatted output includes color-coded syntax highlighting for both JSON and XML.

Yes, click the Copy button to copy the formatted output to your clipboard.

The formatter works entirely in your browser, so the only limit is your device memory.

Last updated: June 2026