XML Formatter
Last updated: March 29, 2026Format, indent and tidy XML.
XML Formatter is a free online tool to format, indent and tidy XML. It runs entirely in your browser, so your files never leave your device — nothing is uploaded. There's no sign-up, no watermark, and it works on any modern browser on desktop or mobile.
How to use XML Formatter
This free XML formatter beautifies XML with proper nesting and indentation, or minifies it down for compact storage. It is handy for config files, RSS and Atom feeds, SVG markup and API responses that arrive as a single dense line. Formatting runs entirely in your browser, so your XML documents stay private on your device.
Read the full guide: XML Formatter Guide: Format, Indent and Tidy Your XML
- 1Paste your XML document or response into the input box.
- 2Choose Format to indent the structure or Minify to collapse it.
- 3Copy the tidied XML for use in your config, feed or request.
Clear nesting
Elements are indented by depth so deeply nested structures become easy to read.
Versatile
Works with config files, feeds, SVG and API payloads alike.
Private by default
XML is formatted client-side, so sensitive configuration and data never leave your browser.
Read a minified API response
REST and SOAP endpoints often return XML as one unbroken line that is impossible to scan. Paste the raw response and hit Format to indent every element by its nesting depth, so you can trace which child sits under which parent. The validity check confirms the payload is well-formed XML, helping you tell a genuine data issue apart from a truncated or malformed response.
Fix a broken RSS or Atom feed
When a feed reader or validator rejects your RSS or Atom file, the cause is usually an unclosed tag or an unescaped ampersand. Paste the feed here and the built-in parser flags the first error it hits, pointing you straight at the malformed line. Once it reads as valid, Format the markup to review every item and channel element neatly before you republish the feed.
Minify XML config before shipping
Verbose files like web.xml, an Android layout, a Maven pom, or an inline SVG carry whitespace and indentation you do not need in production. Paste the document and choose Minify to strip the gaps between tags and collapse it to a single compact line. This shrinks the byte size for embedding in markup, bundling into a build, or storing in a database field without altering the structure.
XML Formatter — frequently asked questions
Can it format SVG files?
Yes. SVG is XML under the hood, so the formatter indents and tidies SVG markup just like any other XML document.
Does formatting validate my XML?
Formatting reflows well-formed XML and will surface obvious structural problems, but it is primarily a beautifier rather than a full schema validator.
Is my XML uploaded anywhere?
No. The tool processes everything locally in your browser, so your config files and API responses are never transmitted to a server.
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