How do I add XML attributes from YAML?

Prefix the key with @_, for example a key @_id: 7 under an element becomes id="7" on that element.

What happens to keys that are not valid XML names?

XML element names cannot start with a digit or contain spaces and most punctuation. Such keys are sanitized by replacing invalid characters with underscores.

YAML to XML Converter Online

Convert YAML mappings, nested objects, arrays, and scalars into structured XML locally.

About YAML to XML

Convert YAML into well-formed XML. Mappings become nested elements, sequences repeat their parent element, and keys prefixed with @_ become attributes. You can set the root and array item element names, indentation, whether to include the XML declaration and whether to self-close empty elements.

Common uses

Generate an XML config or payload from YAML you maintain by hand
Produce XML test fixtures from readable YAML
Move data from a YAML-based tool to one that expects XML

FAQ

How do I add XML attributes from YAML?: Prefix the key with @_, for example a key @_id: 7 under an element becomes id="7" on that element.
What happens to keys that are not valid XML names?: XML element names cannot start with a digit or contain spaces and most punctuation. Such keys are sanitized by replacing invalid characters with underscores.