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Pretty-print, minify, or pinpoint-validate XML documents.
📄 Parsing uses your browser’s own XML engine — namespace-aware and spec-compliant. Whitespace-only text between elements is discarded when beautifying.
Beautifying re-indents nested elements for reading and diffing; minifying collapses all insignificant whitespace into one line, cutting transfer size for SOAP payloads and sitemaps. Both preserve data exactly.
Validation uses your browser’s own XML parser, so error messages quote the spec — including mismatched tag names and illegal characters with their position.
Documents using xmlns declarations round-trip untouched: prefixes, default namespaces, and attribute values survive formatting byte-for-byte apart from whitespace.
The XML Formatter & Validator handles xml formatterdirectly in your browser. Paste or type your input, and the tool processes it instantly — no upload, no signup, no waiting. It's built for the moments when you need a quick transformation and don't want to leave your workflow.
Because the tool runs client-side, it's fast and private. Your text never touches a server, which makes it safe for sensitive content. The interface is keyboard-friendly and works on any device with a modern browser.
Common uses: people reach for this tool when they need to use a online xml pretty print indented, xml syntax error checker line number, minify xml for soap request, or format sitemap xml readable.
Browser-based tools like this one have a few real advantages over installed software or manual methods:
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