XML Formatter for API Responses
Format and beautify XML with proper indentation. Free browser tool — no signup required.
Quick Answer
Paste your XML and click Format to add proper indentation and line breaks for readable, well-structured XML.
How to Use the XML Formatter for API Responses
- Use the input area to provide your data.
- The tool processes it instantly in your browser.
- Copy or download the result.
Frequently Asked Questions
- How do I format an API response?
- Copy the JSON response body from your API client (Postman, cURL, browser DevTools), paste it here, and click the action button to process it instantly.
- What is XML formatting?
- XML formatting adds consistent indentation and line breaks to XML documents, making the element hierarchy and nesting structure immediately visible without changing any data.
- Can I format invalid XML?
- The formatter uses a structural approach that handles most XML, but documents with significant syntax errors may produce unexpected output. Use the XML Validator to check validity first.
About This Tool
Working with REST APIs, GraphQL endpoints, and webhooks means constantly processing XML response data. Raw API responses are typically minified — stripped of all whitespace and line breaks to minimize payload size — making them virtually impossible to read without formatting. This tool transforms those compact responses into well-structured, readable output that reveals the data hierarchy and makes it easy to locate specific values. Paste a response from Postman, cURL, browser DevTools Network tab, or any API client, and instantly see the formatted result. The tool validates the response structure during processing, catching malformed responses that might cause subtle bugs in your application. For developers debugging production issues, this immediate visibility into API data structures is invaluable.
What is XML Formatter?
An XML formatter takes raw or poorly indented XML and produces a clean, human-readable version with consistent 2-space indentation for each nesting level. XML (Extensible Markup Language) is widely used for configuration files, data exchange between systems, SOAP web services, RSS/Atom feeds, and document formats like Office Open XML and SVG. Minified or machine-generated XML is nearly impossible to read without formatting. This tool parses the XML structure, identifies elements and their nesting depth, and outputs a properly indented document that makes the hierarchy immediately clear. It also offers minification to compress XML by removing all unnecessary whitespace.
How to Use This Tool
- Paste your XML into the input area.
- Click Format XML to add proper indentation.
- Click Minify XML to compress for production use.
- Copy the formatted or minified output.
Common Use Cases
- Formatting raw API response bodies for debugging
- Processing webhook payloads for analysis
- Cleaning up GraphQL query responses
- Inspecting third-party API data structures
Examples
<?xml version="1.0"?><root><user><name>Alice</name><age>30</age></user></root>
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