Converting YAML to XML
YAML's indentation-based structure maps naturally to XML's nested element structure. YAML mappings (key-value pairs) become XML elements with the key as the tag name and the value as the content. YAML sequences (lists, marked with -) become repeated XML child elements using the configured item tag name.
This converter uses a lightweight YAML parser that handles the most common YAML patterns: nested mappings, sequences of scalars, sequences of mappings, quoted strings, boolean and numeric values, and inline notation. It does not support advanced YAML features like anchors, aliases, multi-document streams, or custom tags โ for those cases, a server-side conversion with a full YAML library is recommended.
Key Naming Constraints
XML element names cannot start with a number, contain spaces, or use certain reserved characters. If your YAML keys violate these constraints, the converter automatically sanitises them by replacing spaces with underscores and prepending an underscore to keys that start with a digit.
Common Use Cases
Converting YAML to XML is common when feeding configuration data into XML-based systems such as SOAP services, Apache/Nginx config processors, or older enterprise middleware. DevOps engineers often convert Kubernetes YAML manifests to XML when integrating with legacy deployment pipelines that only accept XML-formatted inputs.