Online Tool Store
XML Formatter
Paste XML to check it is well-formed and reformat it with consistent indentation, live as you type. Runs entirely in your browser.
🔒 This tool runs entirely in your browser. Your files are never uploaded to a server.
Example shown — replace it with your own XML.
How it works
- Paste your XML into the box.
- It's checked for well-formedness and reformatted with consistent indentation on every keystroke.
- Copy the result, or fix the reported error if the XML isn't well-formed.
FAQ
Does this validate my XML too?
Yes — it uses the browser's built-in XML parser, so malformed XML (unclosed or mismatched tags) shows an error instead of a formatted result.
Does formatting change my data?
No — only whitespace (line breaks and indentation) changes. Element names, attributes, and text content are untouched.
Can I choose the indent size?
Yes — 2 spaces, 4 spaces, or tabs.
Is my XML uploaded anywhere?
No — formatting and validation both happen locally in your browser.
How we compare
| Feature | Online Tool Store | IDE formatting | Other online formatters |
|---|---|---|---|
| No file upload — runs in your browser | ✓ | ✓ | ✗ |
| No install or project setup | ✓ | ✗ | ✓ |
Opening an editor just to format a snippet of XML is overkill. XML Formatter gives you a validated, indented result the moment you paste.