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Tanaguru Engine vs Pa11y: catalog facts
Tanaguru Engine	Pa11y
Free Offered free as part of Tanaguru's open-source solutions.	Free Free and open source.
Self-hosted	Self-hosted, Command line
Automates about 380 accessibility tests Audits pages, whole sites, web apps and templates	Command-line tool for quick one-off accessibility checks CI tool for testing a list of pages in builds
Automation cannot check every accessibility criterion Licence and installation details are not given on the product page	Automated checks catch only part of all accessibility problems The dashboard requires running your own server
Self-hosted	Downloadable app, Self-hosted
Closed source	Open source
License not stated	License not stated
Not stated if an account is needed	No account 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.