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IBM Equal Access Accessibility Checker vs Tanaguru Engine: catalog facts
IBM Equal Access Accessibility Checker	Tanaguru Engine
Free Free and open source, published by IBM on GitHub.	Free Offered free as part of Tanaguru's open-source solutions.
Browser extension, Command line	Self-hosted
Same rule engine in the browser and in automated builds Integrations for Cypress, Karma, Vitest and Java	Automates about 380 accessibility tests Audits pages, whole sites, web apps and templates
Automated checks cannot catch every accessibility problem Build integrations need some setup in a test suite	Automation cannot check every accessibility criterion Licence and installation details are not given on the product page
Downloadable app, Browser extension	Self-hosted
Open source	Closed 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.