YAML maps become XML elements with child elements for each key. Sequences become repeated elements. Scalars become element text content.

How are attributes expressed?

YAML keys prefixed with `@` map to XML attributes: `{@id: 1, text: hello}` → ` hello `.

What's the root element name?

Configurable — default is ` `. Override with any valid XML name for your consumer.

Yes by default: ` `. Toggle off for fragment output that will be embedded in another document.

Convert YAML to XML format. Part of the DevTools Surf developer suite. Browse more tools in the Converters collection.

YAML and XML are both used for configuration but in different ecosystems: YAML dominates DevOps while XML dominates enterprise Java.
YAML's lack of a schema language means converting to XML's XSD-validated world can require manual schema creation.
Both YAML and XML support Unicode, but XML requires explicit encoding declarations while YAML defaults to UTF-8.

What's the mapping?: YAML maps become XML elements with child elements for each key. Sequences become repeated elements. Scalars become element text content.
How are attributes expressed?: YAML keys prefixed with `@` map to XML attributes: `{@id: 1, text: hello}` → `<elem id="1">hello</elem>`.
What's the root element name?: Configurable — default is `<root>`. Override with any valid XML name for your consumer.
Does it add XML declarations?: Yes by default: `<?xml version="1.0" encoding="UTF-8"?>`. Toggle off for fragment output that will be embedded in another document.

Convert YAML to XML format. Part of the DevTools Surf developer suite. Browse more tools in the Converters collection.

YAML and XML are both used for configuration but in different ecosystems: YAML dominates DevOps while XML dominates enterprise Java.
YAML's lack of a schema language means converting to XML's XSD-validated world can require manual schema creation.
Both YAML and XML support Unicode, but XML requires explicit encoding declarations while YAML defaults to UTF-8.

What's the mapping?: YAML maps become XML elements with child elements for each key. Sequences become repeated elements. Scalars become element text content.
How are attributes expressed?: YAML keys prefixed with `@` map to XML attributes: `{@id: 1, text: hello}` → `<elem id="1">hello</elem>`.
What's the root element name?: Configurable — default is `<root>`. Override with any valid XML name for your consumer.
Does it add XML declarations?: Yes by default: `<?xml version="1.0" encoding="UTF-8"?>`. Toggle off for fragment output that will be embedded in another document.