Validate XML code online and find syntax errors quickly. Check tags, structure, parser errors, XML declaration, root element, attributes, and line-based issues.
Useful for feeds, sitemaps, API responses, config files, SOAP XML, product files, and structured data checks.
Paste XML code and check whether it is well-formed with clean parser details and report output.
| Type | Line | Message | Fix Suggestion |
|---|---|---|---|
| Validation report will appear here. | |||
An XML Validator helps you find syntax problems before your XML file breaks a feed, API, sitemap, or application.
Validate XML tags, nesting, attributes, root element, parser errors, and well-formed structure.
Get clear error messages with helpful suggestions so you can fix XML issues faster.
Copy the validation report or download it as a text file for debugging, records, or client work.
XML validation checks whether XML code is well-formed and readable by XML parsers. XML requires a proper root element, matching opening and closing tags, correctly quoted attributes, and escaped special characters.
XML is used in sitemaps, RSS feeds, API responses, SOAP services, product data, app configuration, and structured document exchange. A small syntax mistake can make the whole XML file fail.
| Issue | Meaning | Common Fix |
|---|---|---|
| Missing Closing Tag | An opening tag is not closed | Add the matching closing tag |
| Invalid Nesting | Tags are closed in the wrong order | Close child tags before parent tags |
| Bad Attribute | Attribute value is not quoted | Use quotes around attribute values |
| Unescaped Character | Special characters are used directly | Use entities like & for ampersand |
| No Root Element | XML must have one main root | Wrap content in a single root tag |
Validate XML code in three simple steps.
Add XML code from a sitemap, RSS feed, API response, SOAP file, or product data file.
The tool checks XML with a browser XML parser and adds extra checks for structure and common issues.
Review the report, fix XML errors, copy the result, or download the validation report as a text file.
Common questions about XML syntax, validation, tags, parser errors, and XML files.