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WAVE vs ARC Toolkit: catalog facts
WAVE	ARC Toolkit
Freemium The online tool and extensions are free; the API and stand-alone testing engine are paid.	Free Free to install from the Chrome Web Store.
Web, Browser extension	Browser extension
Shows issues in place on the page Extensions for Chrome, Firefox and Edge	Runs inside the browser on the current page Uses TPGi's ARC rules engine
Bulk testing requires the paid API or engine Automated results still need human judgement	Checks one page at a time Automated checks do not replace manual testing
Web application, 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.