File & Data Conversion Tools

YAML to XML Converter

Convert YAML to well-formed XML by first parsing the YAML structure, then serializing it as properly-escaped XML elements.

Paste YAML below - this tool parses it and converts the resulting structure into well-formed XML.

YAML Root Element Name

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This follows the same YAML→structure→XML mapping conventions as the JSON to XML Converter, since YAML and JSON represent the same kinds of data structures.

How to Use It

Paste valid YAML.
Optionally set a root element name.
Click Convert.
Copy or download the resulting XML.

How the Conversion Works

YAML is first parsed into its underlying structure (mappings, sequences, scalars) - the same structure JSON would represent - which is then serialized as nested XML elements, matching the same conventions as the JSON to XML Converter.

Limitations

YAML keys that aren't valid XML element names (spaces, leading digits) are flagged rather than silently producing invalid XML.

Example

book:
  title: Dune
  year: 1965
  tags:
    - sci-fi
    - classic

becomes:

<?xml version="1.0" encoding="UTF-8"?>
<root>
  <book>
    <title>Dune</title>
    <year>1965</year>
    <tags>sci-fi</tags>
    <tags>classic</tags>
  </book>
</root>

When You Need It

Sending data kept in YAML to an XML-only API, feed or import tool.
Generating XML test fixtures from readable YAML files.
Moving settings from a YAML-based project into a system configured with XML.

Tips

YAML anchors and aliases are expanded into full copies, since XML has no equivalent.
Comments are not carried over - add XML comments afterwards if needed.
Choose a root element name that matches what the receiving system expects.

Convert back with XML to YAML, or use YAML to JSON for a JSON version.