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axe DevTools vs ARC Toolkit: catalog facts
axe DevTools	ARC Toolkit
Freemium The browser extension has a free tier; wider toolkits are paid and sold through Deque.	Free Free to install from the Chrome Web Store.
Web, Browser extension	Browser extension
Built on the widely used axe-core rules engine Checks run directly in the browser on the current page	Runs inside the browser on the current page Uses TPGi's ARC rules engine
Automated checks do not replace manual accessibility testing Advanced features are enterprise products sold through sales	Checks one page at a time Automated checks do not replace manual testing
Hosted service, Browser extension	Browser extension
Closed 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.