{ } How to use

Paste your YAML.
Select Process to build the XML.

{ } How it works

YAML to XML works on the text you provide. Select Process ▸ and it runs entirely in your browser — nothing is uploaded to a server — then shows the result in the Output panel.

Input

YAML input — paste or type your input in the left panel (use Sample for an example)

Output

XML text — copy or download it from the Output panel.

{ } Common uses

Produce an XML payload from a config you maintain in YAML.
Feed a YAML-defined structure to a system that only accepts XML.
Generate XML fixtures without writing the tags.

{ } Limitations

Keys become element names, so a key that is not a valid XML name produces XML that will not parse. A key beginning with a digit, or containing a space, needs renaming first.
A YAML document whose root is not a mapping is wrapped in a root element, because XML needs exactly one root. Comments are dropped — YAML has them and XML gets none.
No attributes are produced unless a key is already named with the @_ prefix, and no XML declaration or namespace is added.

{ } FAQ

Is my data uploaded to a server?

No. Everything runs locally in your browser — your files never leave your device.

Can I process more than one file at once?

This tool works on one input at a time.

Is this tool free?

Yes — it’s completely free and needs no sign-up.

How do I get attributes instead of elements?

Name the key with an @_ prefix — @_id becomes id="…". That is the same convention XML to JSON uses when reading, so a round trip keeps them.