🏷️Free XML & Markup Tools Online
Format, validate, and escape XML markup with free online XML tools for developers. Runs in your browser, no signup needed.
2 free xml & markup tools below — pick one to get started.
XML Beautifier
Extensible Markup Language powers numerous enterprise systems, configuration schemas, SOAP web services, and RSS feeds. Production web servers and API endpoints often compress XML responses into a single continuous line without indentation or line breaks to reduce transfer sizes. Reading, editing, and troubleshooting unformatted XML blocks is frustrating and makes finding misplaced elements or broken tags difficult. This XML beautifier solves the readability problem by reformatting raw XML into an organized, indented document right inside your browser. It applies clean two-space indentation while correctly aligning sibling elements, parent wrappers, and single-line tags. The beautifier runs locally in your browser using client-side JavaScript. The tool does not intentionally send the entered markup to our servers.
XML Validator
Extensible Markup Language enforces strict syntax standards known as well-formedness. Unlike forgiving HTML parsers that attempt to display broken pages despite missing tags or unquoted attributes, standard XML parsers immediately halt processing if they encounter an unclosed element, an illegal character, or a mismatched tag pair. Debugging these syntax errors in lengthy configuration files or feeds can stall development pipelines. This XML validator checks whether your markup is well-formed directly in your browser. Using the browser's native DOMParser engine, it verifies closing tags, attribute quoting, and tag nesting. When the XML is valid, it reports the root element and count of direct children; if an error exists, it points out the exact parsing failure.