Local processing
Your content stays in browser memory. Tool operations do not upload it.
Format, validate, and convert data
Fast, private utilities that run entirely in your browser.
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XML Validator
Check whether an XML document is well formed and identify structural syntax problems before integration. Your input is processed locally in the browser and is not uploaded to YourConvertor.
How to use XML Validator
- Paste the complete document into XML Validator.
- Run validation without changing the original input.
- Read the validation result and locate any reported syntax problem.
- Correct the source and validate again until it passes.
Common uses
- A supplier integration team can catch malformed XML before sending a shipment message.
- A publisher can check feed syntax before investigating product-specific validation rules.
Example input
<root><item>有效</item></root>Example result
Valid XML - document is well formed.Common mistakes
- Mismatched tag names. Fix: make each closing tag match the exact opening name and case.
- More than one top-level element. Fix: wrap document elements in one root element.
- Unknown or incomplete entity references. Fix: escape raw ampersands or use a declared valid entity.
Tips for reliable results
- Validate the complete document because a partial fragment may fail even when it came from a valid source.
- Start with the first reported syntax error; later errors can be side effects of the same missing delimiter or closing token.
- Run validation again after every correction instead of assuming the remaining document is valid.
Frequently asked questions
What does well formed mean?
The document follows XML syntax rules, has one root, and nests elements correctly.
Does a valid result prove it matches my XSD?
No. Well-formedness and schema validity are different checks.
Does the validator execute XML content?
No. It checks structure and does not execute scripts or treat the input as a web page.
Why can one mistake produce several error messages?
A missing quote, delimiter, or closing token can change how the rest of the document is parsed. Correct the earliest error first and validate again.
Does a valid result guarantee the data is correct?
No. Syntax validation confirms structure, not business rules, required fields, allowed values, or schema compliance unless the tool explicitly supports them.
Does XML Validator upload my data?
No. Supported XML Validator processing runs locally in your browser.
Does the free plan have an input limit?
No plan-based input cap is applied. Individual tools may still enforce documented safety limits to keep browser-side processing reliable.