Is my YAML data uploaded to a server?

No. Everything runs entirely in your browser with JavaScript. Nothing is sent over the network, which makes the tool safe for sensitive data.

What becomes the XML root element?

A top-level mapping with a single key becomes the root element. Anything else (lists, multiple keys) is wrapped in a element so the document stays well-formed.

100% local — your data never leaves your browser

YAML to XML Converter — Free Online Tool

Convert YAML mappings to well-formed XML instantly in your browser. Free, private and offline-friendly: your data never leaves your device.

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Indentation

Swap: XML → YAML

YAML input

XML output

Why convert YAML to XML?

Plenty of enterprise APIs and legacy tooling still require XML. Paste a YAML document above and get well-formed XML in an instant, lists becoming repeated elements.

How it works

The converter parses your YAML locally (anchors and merge keys resolved), then builds XML with the indentation you pick. Keys prefixed with @_ turn back into attributes, mirroring the XML to YAML tool, and the XML declaration option prepends <?xml … ?>.

Frequently asked questions

Is my YAML data uploaded to a server?: No. Everything runs entirely in your browser with JavaScript. Nothing is sent over the network, which makes the tool safe for sensitive data.
What becomes the XML root element?: A top-level mapping with a single key becomes the root element. Anything else (lists, multiple keys) is wrapped in a <root> element so the document stays well-formed.