XML is still deeply embedded in enterprise software: SOAP APIs, configuration files, RSS feeds, Maven POM files, and Android resource files all rely on it. A well-formed sample XML at a known size is the starting point for stress-testing SAX and DOM parsers, validating XSLT pipelines, and checking how your system behaves when a production XML payload is far larger than your staging fixture. Generate one here at any exact size, entirely in your browser.
Download a Sample XML File (Any Size)
Generate and download a sample XML file at any exact size — free, in-browser, no signup.
1 MB (1,000,000 bytes)
Generated entirely in your browser — nothing is uploaded.
Common use cases for XML test files
- Testing XML streaming (SAX) vs. in-memory (DOM) parsers at realistic sizes
- Stress-testing XSLT transformations and XML-based web service payloads
- Validating RSS and Atom feed parsers with large feed archives
- Checking XML-based configuration loaders and build tools (Maven, Ant)
Related formats
Sample File Generator — all 20 formats, any exact size, free in-browser download.
Frequently asked questions
Is the generated XML well-formed?
Yes. The file includes a proper XML declaration, a single root element, and nested child elements with text content. Python's xml.etree.ElementTree, Java's SAXParser, and a browser's DOMParser all handle it without parse errors.
What is the difference between well-formed and valid XML?
Well-formed means the syntax is correct — tags are closed, attributes are quoted, the document has one root. Valid means it also conforms to a specific DTD or XML Schema. The generated file is well-formed; it is not tied to any schema, so schema validators will reject it unless you supply a permissive or matching schema.
Why would I need a large XML file for testing?
Large XML documents (5 MB+) are the stress test that separates DOM parsers from streaming SAX parsers. A DOM parser loads the entire document into memory; a 50 MB XML file will expose memory constraints that a tiny file never would.
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