How it works
How to use the XML Parser
Paste XML
Or open a file.
Inspect the parse tree
Search and expand nodes; errors are highlighted with their location.
Copy the JSON
Use the JSON tab to export the parsed structure.
What the parser checks
The XML is parsed with the browser’s native XML parser, which enforces well-formedness: matching tags, quoted attributes, a single root element and valid entities.
Built for developers
Why developers use it
Private by design
Runs 100% in your browser. Nothing you paste is uploaded, logged or stored on a server.
Instant results
Output updates as you type, with precise error locations when something is wrong.
Works offline
Once loaded, the tool keeps working without a connection. Install it as an app if you like.
Free, no sign-up
No accounts, no limits, no watermarks.
FAQ
Frequently asked questions
Does it validate against an XSD schema?
No — it checks well-formedness, not schema validity.
Is my data uploaded anywhere?
No. Everything runs locally in your browser — nothing you paste or open is sent to a server, logged or stored. The tool keeps working offline once the page has loaded.
Keep going
Related tools
- XML FormatterBeautify and format XML code
- XML ValidatorCheck that XML is well-formed
- XML ViewerExplore XML as a collapsible tree
- XML DiffCompare two XML documents side by side
- XML Pretty PrintPretty-print XML with indentation
- XML EditorEdit XML with highlighting and validation
- JSON ParserParse JSON and inspect the structure
- JSON to XMLConvert JSON to XML and XML to JSON