YAML

Writable

other

YAML is data serialisation format which uses a text file organised in a human-readable form. YAML can be used with several platforms of programming languages such as C, Perl, PHP, Python, Ruby, Javascript and others.

Identify it

Extensions.yaml.yml
MIME typesapplication/yaml
PRONOMfmt/818
WikidataQ281876
Library of Congressfdd000645

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Sources

From Just Solve the File Format Problem (File Formats Wiki), PRONOM, Wikidata. Updated 2026-10-24.

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