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webhint vs axe DevTools: catalog facts
webhint	axe DevTools
Free Free open-source project hosted by the OpenJS Foundation.	Freemium The browser extension has a free tier; wider toolkits are paid and sold through Deque.
Browser extension, Command line	Web, Browser extension
Same checks available in the editor, the browser and CI Built into Microsoft Edge DevTools	Built on the widely used axe-core rules engine Checks run directly in the browser on the current page
The CLI requires Node.js and npx Aimed at developers rather than site owners who want a one-click report	Automated checks do not replace manual accessibility testing Advanced features are enterprise products sold through sales
Downloadable app, Browser extension	Hosted service, Browser extension
Open source	Closed source
License not stated	License not stated
No account 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 24, 2026	Official website Full listing and sources Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.