Pretty-print and validate XML

Indent a messy XML document and surface well-formedness errors before it reaches a parser.

By The DevFixPro Editorial Team · independent editorial research project

Private by design. Every tool linked below runs 100% in your browser — your code, text, and tokens never leave your device.

The XML will not parse and the error is unhelpful

A missing closing tag, a misplaced attribute, or a stray character in a config or feed can break an entire import with a message that points nowhere useful. Pretty-printing the document is often the fastest way to spot the structural problem by eye.

Format and validate

The XML Formatter indents your document for readability and checks well-formedness, flagging where the structure breaks. Paste the raw XML, get a clean tree, and fix the offending node before it hits a strict parser.

When the data is JSON instead

Many APIs speak JSON rather than XML. If that is your case, the JSON Formatter & Validator does the same job for JSON — pretty-print plus validation — so you are covered whichever format arrives.

Typical scenarios

  • Debugging a SOAP response or an RSS/Atom feed.
  • Cleaning up a hand-edited configuration file.
  • Confirming a document is well-formed before a batch import.

← All guides