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webhint vs IBM Equal Access Accessibility Checker: catalog facts
webhint	IBM Equal Access Accessibility Checker
Free Free open-source project hosted by the OpenJS Foundation.	Free Free and open source, published by IBM on GitHub.
Browser extension, Command line	Browser extension, Command line
Same checks available in the editor, the browser and CI Built into Microsoft Edge DevTools	Same rule engine in the browser and in automated builds Integrations for Cypress, Karma, Vitest and Java
The CLI requires Node.js and npx Aimed at developers rather than site owners who want a one-click report	Automated checks cannot catch every accessibility problem Build integrations need some setup in a test suite
Downloadable app, Browser extension	Downloadable app, Browser extension
Open source	Open source
License not stated	License not stated
No account 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 24, 2026	Official website Full listing and sources Checked September 23, 2026

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