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AccessibilityChecker.org vs Accessibility Insights: catalog facts
AccessibilityChecker.org	Accessibility Insights
Freemium The basic scan is free; the monitoring platform and services are paid with a free trial.	Free Free and open source, published by Microsoft.
Web, Browser extension	Windows, Browser extension
Free scan with an overview of every issue Fix instructions for each problem	FastPass catches common issues in a few minutes Guided assessment against WCAG 2.1 AA
Ongoing monitoring and remediation are paid Automated scans cannot confirm full compliance	Web extension targets Chrome and Edge only Desktop tool is Windows only
Web application, Hosted service, Browser extension	Downloadable app, Browser extension
Closed source	Open source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Needs internet	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.