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Vale vs alex: catalog facts
Vale	alex
Free The open-source software is available without a license fee. Hosting, hardware and…	Free Free and open source under the MIT license.
Windows, macOS, Linux, Command line	Command line
Runs style checks in editors, scripts or continuous integration.	Checks for several categories of potentially unequal phrasing Can be used from the command line or JavaScript
You need to choose or write the style rules it enforces.	Focused on language and phrasing checks
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License: MIT
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked October 8, 2026

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