GeezerVison

How to validate an XML file?

Click on "Browse" to select your file or copy-paste it directly into the editor.
The XML file will be automatically analyzed. If there is a syntax error, it will be highlighted, and an error message will be displayed.

Why validate an XML file?

The XML format is commonly used in various contexts, such as SOAP web services.
It may be necessary to create a payload in XML format, and errors can easily occur. Identifying the syntax error can then be complex, especially if the XML file is large.

Check XML

This tool allows you to test the syntax of an XML file. It detects syntax errors, enabling you to correct them and obtain a valid XML. While it is quite simple, it perfectly serves its purpose (no need for AI ^^).

This tool uses the fast-xml-parser library (MIT license).

API documentation

This API allows to validate XML data. Please use this API sparingly.

POST https://api.xmlable.com/xml/validator

Return the first syntax error

Payload

Your XML data

Response

Success: 200

{
    "valid": true
}

Error: 400

{
    "valid": false,
    "details": {
        "code": "InvalidTag",
        "msg": "Tag '&aa' is an invalid name.",
        "line": 3,
        "col": 5
    }
}