Free YAML to XML Converter Online
Convert YAML to XML in your browser — free, instant, no data sent to servers.
YAML Input
XML Output
What Is YAML to XML?
Your config or data is in YAML but the downstream system wants XML — a SOAP API, an RSS feed, or a legacy enterprise integration. This converter bridges that gap. YAML uses indentation for structure; XML (W3C spec) uses tags and attributes. Converting YAML to XML turns keys into elements and nested structures into child elements — well-formed XML you can feed into DOMParser, XSLT, or XPath.
The YAML is parsed and rewritten as XML by script that lives in this page, so the document never makes a trip to our servers. That matters when the thing you are converting is a production config or a Kubernetes manifest with real hostnames and credentials in it. If JSON is what the other side actually wants, use YAML to JSON.
YAML to XML Examples
Convert YAML to XML. Telecom-themed example:
Example: Subscriber record
XML Output:
Click the Sample button above to load more examples into the editor.
How to Use This Tool
Paste or Upload YAML
Drop your YAML into the left-hand editor, or pick a .yaml / .yml file off your disk with Upload. Want to see the output shape before using your own file? Sample fills the editor with a small network config. YAML that does not parse produces an error message rather than XML—the YAML Validator to diagnose.
View XML Output
XML appears on the right as you type. Each YAML key turns into an element, a nested mapping turns into child elements, and a list turns into the same tag repeated once per item. A parse error shows up in that pane instead of half-finished XML.
Copy or Download
Copy drops the XML onto your clipboard, and Download writes a .xml file you can hand straight to the system that asked for XML. Need to go back the other way? Try XML to YAML. For YAML formatting, use YAML Formatter.
When YAML to XML Helps
XML is common in SOAP APIs, RSS/Atom feeds, and enterprise systems. If your config or data is in YAML (e.g. Kubernetes manifests, Docker Compose) but the target system expects XML, this tool does the conversion. Config files like application.yml or GitHub Actions workflows can be converted for systems that only accept XML input.
Some legacy tools and integrations require XML. Converting YAML here gives you valid XML you can feed into XSLT, XPath, or XML parsers. For JSON instead, use YAML to JSON. For querying XML, use the XML XPath tool.
Frequently Asked Questions
When to use XML vs YAML?
XML is common in SOAP, feeds, and enterprise systems. YAML is better for config files, Kubernetes, and DevOps. Use this tool when you need to bridge the two—e.g. feeding YAML config into an XML-based pipeline.
Does it preserve comments?
No. XML supports comments with <!-- -->, but YAML comments are not carried over. The conversion focuses on structure and data.
Is my data private?
Yes. The YAML-to-XML step happens inside this browser tab, and your document is never posted anywhere.
How are arrays handled?
YAML arrays become repeated XML elements with the same tag name. For example, a list of items becomes multiple <item> elements.
Can I add attributes to elements?
The default conversion produces elements with text content. For custom attribute mapping, you may need to post-process the XML or use a different approach. The output is valid, well-formed XML.
Related Tools
YAML spec. W3C XML spec. MDN DOMParser. JSON spec. YAML quick reference. YAML. XPath.