XML Validator

What is an XML Validator?

An XML Validator checks whether your XML is well-formed and readable by parsers. It helps catch common problems such as missing closing tags, malformed attributes, invalid nesting, and other syntax issues that can break integrations, feeds, or configuration files.

Why use this tool?

Small XML mistakes can be difficult to spot by eye, especially in larger documents. This validator lets you paste or upload XML, confirm whether the markup is valid, view parser errors, and format valid XML for easier inspection before you use it in applications or APIs.

How to use

1. Paste XML into the editor or upload a file.
2. Click Validate XML to check for syntax issues.
3. If the XML is valid, use Format Valid XML to produce a readable version.
4. Copy or download the result when you are finished.

Common XML issues this helps catch

• Missing or mismatched closing tags
• Invalid nesting of elements
• Broken attribute quotes
• Unexpected characters or malformed entities
• Parser failures caused by incomplete XML documents

Frequently Asked Questions (FAQs)