XML Validator
Check whether XML is well-formed in your browser. Free browser-based XML Validate — no signup, runs locally.
Introduction
XML Validator is a free, browser-based utility in our Code Tools collection. Check whether XML is well-formed before you feed it to a parser or API. XML Validator looks for well-formedness problems - unclosed tags, bad nesting, broken declarations - so you catch them before a backend reject. It is a quick local check, not a full XSD suite. Everything runs locally in your browser — inputs stay on your device, with no account or upload required. Highlights include well-formedness check.
Features
- Well-formedness check
- Readable error feedback
- Local-only validation
How to use
- 1Paste the XML document.
- 2Validate and read any errors.
- 3Correct tags or nesting, then try again.
Example
Unclosed tag
Input<root><item></root>Output
Error: mismatched or unclosed tag
Benefits
- Run XML Validate entirely in the browser with no signup or installation.
- Keep sensitive sample data private — processing never leaves your device.
- Well-formedness check
- Readable error feedback
- Local-only validation
- Pair it with XML Format and JSON ↔ XML when your workflow needs adjacent utilities.
FAQs
No. It focuses on well-formed XML, not schema compliance.
Best for typical snippets and configs; very large docs may be slow in-browser.
No.
Yes. XML Validate on EverydayDevTools is free, with no account, watermarks, or usage caps for normal interactive use.
No. XML Validate runs in your browser. Your input is processed locally and is not sent to EverydayDevTools servers.
Check whether XML is well-formed before you feed it to a parser or API. It fits everyday code tools tasks when you want a fast local utility instead of installing a CLI or opening a heavy IDE feature.
Core capabilities include: Well-formedness check; Readable error feedback; Local-only validation.
Developers often pair XML Validate with XML Format, JSON ↔ XML. Open Related tools on this page for quick links.