XML Parser / Formatter
Free online XML parser with real-time validation, collapsible tree view (+/-), pretty print, and syntax highlighting for elements, attributes, text, and CDATA. 100% browser-based.
Paste XML on the left to see the tree hereYou might also like
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XML Parser & Formatter
XML still powers SOAP web services, RSS feeds, Android resources, and Office documents (docx, xlsx). This parser validates XML in real time and lets you explore the structure with a collapsible tree.
Features
- Collapsible tree view —
+/−toggles for nested elements - Real-time validation as you type
- Format / Minify — 2-space, 4-space, or tab indentation
- Error location — pinpoints the offending line
- Syntax highlighting — tag names (purple), attributes (orange), values (green), comments (gray), CDATA (blue)
- Copy / Download as .xml file
- 100% client-side — input never leaves your browser
Common XML errors
- Case mismatch —
<Book>...</book>(XML is case-sensitive) - Unescaped entities — use
&,<,> - Unclosed tags — every opening tag needs closure or self-close
<br /> - Unquoted attributes —
id=1fails, useid="1" - Multiple roots — XML requires exactly one root element
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