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axe DevTools vs Accessibility Insights: catalog facts
axe DevTools	Accessibility Insights
Freemium The browser extension has a free tier; wider toolkits are paid and sold through Deque.	Free Free and open source, published by Microsoft.
Web, Browser extension	Windows, Browser extension
Built on the widely used axe-core rules engine Checks run directly in the browser on the current page	FastPass catches common issues in a few minutes Guided assessment against WCAG 2.1 AA
Automated checks do not replace manual accessibility testing Advanced features are enterprise products sold through sales	Web extension targets Chrome and Edge only Desktop tool is Windows only
Hosted service, Browser extension	Downloadable app, Browser extension
Closed 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.