XML
Format, minify, validate and explore XML documents
XML Formatter & Validator: Pretty Print & Lint XML Online
Dense, unformatted XML is taken by this XML formatter and proper indentation is added so it can actually be read. Any XML — API responses, config files, SOAP messages — can be pasted and clean, validated output is produced instantly. Unclosed tags, mismatched brackets, and invalid character references are caught before they cause runtime errors. This tool is also used as an XML linter (xmllint) for quick syntax checks.
Why is XML validation needed?
XML is strict about syntax. A single unclosed tag or mismatched bracket will break the entire document. These problems are caught by our validator before they cause runtime errors in your application. Well-formedness issues like unclosed elements, attribute quoting problems, and invalid character references are all checked.
XML tree exploration
Complex XML documents with deep nesting can be overwhelming as raw text. The tree view lets the document structure be explored visually — elements are expanded and collapsed, attributes are seen at a glance, and navigation to specific nodes is done without scrolling through hundreds of lines.