XML Validator
Validate XML syntax and detect parser errors. Free, private, and local-first.
Use XML Validator
Check XML syntax and parser errors locally.
Paste code and run the tool locally.
Quick answer
XML Validator is a free online tool that helps you validate XML syntax and detect parser errors. It runs in your browser, so you can work with development data, text, files, or generated output without creating an account.
About XML Validator
XML Validator helps you validate XML syntax and detect parser errors. It is designed for focused local-first workflows where you need a quick result without creating an account or sending your input to a server.
Common uses include checking xml before adding it to a feed or sitemap, validating xml snippets copied from integrations, finding parser errors in test fixtures.
Use the examples, usage notes, FAQ, and related tools below when you need to compare formats, build sample data, validate inputs, or move into the next step of the same workflow.
What this tool does
How to use XML Validator
- 1
Paste your XML into the input editor.
- 2
Click Validate to process it locally.
- 3
Review the validation result and any status message.
- 4
Copy the result or use it as the next input for another pass.
Examples
Valid XML
<root><item>CodeVella</item></root>
Invalid XML
<root><item>Missing close</root>
Use cases
- Checking XML before adding it to a feed or sitemap
- Validating XML snippets copied from integrations
- Finding parser errors in test fixtures
- Confirming markup is well formed before formatting
Related workflow
After using XML Validator, many workflows continue with related tools for validation, conversion, cleanup, mock data, or final export.
Privacy and usage notes
CodeVella tools are designed to run locally in your browser. Your input is not uploaded to a server, and no account is required.
Generated test data is intended for development, QA, demos, and safe internal workflows.
Frequently asked questions
Is my data uploaded?+
No. This tool is designed to run locally in your browser.
Do I need an account?+
No signup is required for CodeVella tools.
What does XML Validator do?+
XML Validator helps you validate XML and produce validation result directly in your browser.
Will this change the meaning of my code?+
The tool is designed to preserve the parsed content while making the result easier to read, validate, or convert.
Can I use this for large files?+
Normal snippets, configs, and copied payloads work well. Very large files depend on your browser memory because processing happens on your device.