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Total Validator vs WAVE: catalog facts
Total Validator	WAVE
Freemium A Basic edition is offered alongside paid Pro and CI editions.	Freemium The online tool and extensions are free; the API and stand-alone testing engine are paid.
Browser extension	Web, Browser extension
Accessibility tests for WCAG 2.2, Section 508 and ARIA HTML, CSS, link and spelling checks in one tool	Shows issues in place on the page Extensions for Chrome, Firefox and Edge
Advanced features are split across paid editions Supported operating systems are not stated on the homepage	Bulk testing requires the paid API or engine Automated results still need human judgement
Downloadable app, Browser extension	Web application, 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 October 2, 2026	Official website Full listing and sources Checked September 23, 2026

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