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Accessibility Insights vs WAVE: catalog facts
Accessibility Insights	WAVE
Free Free and open source, published by Microsoft.	Freemium The online tool and extensions are free; the API and stand-alone testing engine are paid.
Windows, Browser extension	Web, Browser extension
FastPass catches common issues in a few minutes Guided assessment against WCAG 2.1 AA	Shows issues in place on the page Extensions for Chrome, Firefox and Edge
Web extension targets Chrome and Edge only Desktop tool is Windows only	Bulk testing requires the paid API or engine Automated results still need human judgement
Downloadable app, Browser extension	Web application, Browser extension
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.