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IBM Equal Access Accessibility Checker vs Accessibility Insights: catalog facts
IBM Equal Access Accessibility Checker	Accessibility Insights
Free Free and open source, published by IBM on GitHub.	Free Free and open source, published by Microsoft.
Browser extension, Command line	Windows, Browser extension
Same rule engine in the browser and in automated builds Integrations for Cypress, Karma, Vitest and Java	FastPass catches common issues in a few minutes Guided assessment against WCAG 2.1 AA
Automated checks cannot catch every accessibility problem Build integrations need some setup in a test suite	Web extension targets Chrome and Edge only Desktop tool is Windows only
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	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 23, 2026	Official website Full listing and sources Checked September 23, 2026

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