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

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