A web-based XML validator. Can be used for free. Validates XML files, prompts the user for referenced files (e. g., XSD), shows good error messages.

Validate an XML file. Read here how to validate your XML files (including referenced DTDs) online with just a few mouse clicks.

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Use our XML validator to syntax-check your XML. Well Formed XML Documents. An XML document with correct syntax is called "Well Formed".

Aug 19, 2008 · The Java runtime library supports validation. Last time I checked this was the Apache Xerces parser under the covers.

Oct 26, 2023 · A string containing an XML document. The name of an XML file. The URL of an XML file; valid protocol identifiers include http, https, ftp, and ...

Validates that an XML document is well formed, if you have a schema use the appropriate validator instead (XSD, RelaxNG or Schematron). Download Liquid Studio

vscode-xml provides the capability to report XML syntax errors when the XML is not valid: XML Syntax Error. For many of the errors, you can use a Quick Fix ...