XML Validator
Confirm XML is well-formed before you ship it. Validation uses the browser’s XML parser locally.
Drop a file or paste below
Check XML well-formedness privately
How to use this tool
Paste XML
Drop a file or paste into the editor.
Validate
Parser errors are shown immediately.
Fix locally
Edit and re-check without leaving the page.
Well-formed vs schema-valid
This tool verifies the document parses as XML (matching tags, structure). It does not apply XSD/DTD business rules.
Fast local checks
Paste a snippet from an integration test or drop an export file — errors surface immediately without an upload step.
Works with formatters
Validate first, then open the XML formatter if you want indented output for review.
Frequently Asked Questions
More on quality loss: conversion quality guides · compression guides
Is my file uploaded?
No. Format Convertly tools run in your browser tab. Files are not sent to our servers for processing.
Is this tool free?
Yes. Use it without an account or watermark.
Does it work on mobile?
Yes — any modern phone or desktop browser that supports the required Web APIs.
Ready to convert more formats?
Browse converters or jump back to the tool above.