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Yamale vs YAMLlint: catalog facts
Yamale	YAMLlint
Free Free and open source under the MIT license.	Free Free to use in the browser.
Windows, macOS, Linux, Command line	Web
Validates one or many YAML files from the command line Provides a Python API	Paste-and-check workflow with no setup Returns a cleaned UTF-8 version of valid YAML
Requires Python 3.8 or newer and PyYAML Schemas should come from trusted sources	Reformatting strips comments No schema or style rules, only syntax checking
Downloadable app	Web application
Open source	Closed source
License: MIT	License not stated
Not stated if an account is needed	No account needed
Works offline	Needs internet
Official website Full listing and sources Checked October 8, 2026	Official website Full listing and sources Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.