Best Free XML Formatter
Pretty-print or minify XML in your browser, with well-formedness checking and your choice of indent.
100% free
No signup
No watermark
Files processed in memory, never stored
✨
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How it works
- Paste your XML. Drop a document, feed, config or SOAP body into the box.
- Format or minify. Hit Format to pretty-print, or Minify to compact it. Parse errors are flagged inline.
- Copy the result. Copy the output. Everything runs in your browser — nothing is uploaded.
About this tool
Make messy XML readable, or squeeze it small, without anything leaving your machine. Paste a document and hit Format to indent the whole tree — elements, attributes, CDATA, comments and processing instructions are laid out cleanly, and empty tags collapse to the self-closing form. If the XML is not well-formed, the parser tells you where it broke instead of producing silent garbage. Minify does the opposite, stripping the whitespace between tags. Advanced options let you choose a 2-space, 4-space or tab indent.
What people use it for
- Make a minified XML feed or config readable
- Compact XML to shrink a request or response payload
- Spot exactly where a document is malformed
- Tidy up SOAP, RSS/Atom or SVG markup before committing
Frequently asked questions
No. Parsing, formatting and minifying all happen in your browser, so nothing you paste is uploaded anywhere.
It will not silently mangle it — the built-in parser reports the error (and where it occurred) so you can fix the document.
Yes. Open Advanced options and pick 2 spaces, 4 spaces or a tab; the whole tree re-indents to match.
It only removes the insignificant whitespace between tags. Text content, attributes and structure are preserved.
Yes. Comments, CDATA sections and the XML prolog are retained and indented along with the elements.
Completely free, no account and no limits — a client-side tool with nothing to meter.
Yes. It runs in your browser, so XML Formatter works on phones and tablets as well as desktop — there is no app to install.
Usually just a few seconds for a typical file — XML Formatter starts working the moment you give it your input.
All modern browsers — Chrome, Safari, Firefox and Edge. XML Formatter needs nothing installed beyond the browser you already use.