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WAVE vs Tanaguru Engine: catalog facts
WAVE	Tanaguru Engine
Freemium The online tool and extensions are free; the API and stand-alone testing engine are paid.	Free Offered free as part of Tanaguru's open-source solutions.
Web, Browser extension	Self-hosted
Shows issues in place on the page Extensions for Chrome, Firefox and Edge	Automates about 380 accessibility tests Audits pages, whole sites, web apps and templates
Bulk testing requires the paid API or engine Automated results still need human judgement	Automation cannot check every accessibility criterion Licence and installation details are not given on the product page
Web application, Browser extension	Self-hosted
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.