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XML Validator
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XML Validator — Validate XML Online Free
What is XML Validator?
Validate XML syntax. Check for well-formed XML and report errors.
Validate XML documents for correct syntax and structure.
How to Use XML Validator
- Paste or type your input into the editor on the left panel.
- Results update automatically while you type. You can also press Ctrl+Enter to force a refresh.
- View the result in the output panel on the right with full syntax highlighting.
- Use Copy or Download to export the result.
- Drag and drop
.jsonor.txtfiles directly into the editor.
Example
Input:
<root><item>test</item></root>
Output:
✓ Valid XML
Common Use Cases
- Debug XML responses
- Verify config files
Common Errors
Why Use Our XML Validator?
- 100% client-side — your data never leaves your browser. No server processing, no data collection.
- No sign-up required — start using the tool instantly with no registration or installation.
- Keyboard shortcuts — press Ctrl+Enter to run, ? for shortcuts list, Ctrl+B to toggle sidebar.
- Persistent state — your input is automatically saved across sessions using local storage.
- IDE-style interface — Monaco Editor (the engine behind VS Code) with syntax highlighting and error detection.
- Multi-format conversion — convert between JSON, XML, CSV, and YAML without switching tools.
Frequently Asked Questions
What does XML validation check?
It checks for well-formed XML: balanced tags, proper escaping, valid structure.
Try XML Validator Now
Paste your data into the editor above for instant processing. Use Ctrl+Enter anytime to re-run quickly.
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