XML Formatter

Paste your raw XML into the input box and the formatter pretty-prints it instantly, giving each element its own indented line so the nesting is easy to read. Pick a 2 or 4 space indent, or switch to Minify to strip the whitespace back out into a single line. Everything happens live in your browser as you type.

It walks the tags in order, adding a level of indentation each time an element opens and removing one when it closes. A simple element that just wraps a bit of text, like a title tag around a single value, is kept on one line so the output stays compact. Self-closing tags and declarations do not change the depth.

Well-formed XML has exactly one root element, every open tag has a matching close tag (or is self-closed), tags nest without overlapping, and attribute values are quoted. This tool runs a real well-formedness check in your browser using the built-in DOMParser, so you get a "Well-formed" or "Not well-formed" flag alongside the output. Note that well-formed is not the same as valid against a schema or DTD, which this does not check.

Not exactly. It is a fast convenience formatter built on tag matching with regular expressions, not a full validating parser, so it will still indent input that has an unclosed or mismatched tag and simply warn you that the result is a best effort. Treat the well-formed flag as your signal to go find the real problem in the source.

No. Both the formatting and the well-formed check run entirely in your browser, so your XML never leaves your device and there is no server round trip. That makes it safe for config files or API payloads you would rather not paste into a random website.