GitHub Accessibility Scanner vs IBM Equal Access Accessibility Checker

GitHub Accessibility Scanner is a free, MIT-licensed GitHub Action for finding accessibility barriers in websites, repositories, and dynamic content. It checks against WCAG 2.2, using Axe by default, and also supports AccessLint and plugins. Findings can be filed as GitHub issues and tracked between runs to prevent duplicates; issues can also be closed when a finding no longer appears. Copilot is optional: without it, the scanner still files issues, while Copilot can be assigned an issue to suggest a fix and create a pull request. Users can configure scan URLs, authentication, screenshots, issue grouping, experimental and best-practice findings, and selectors for individual URLs. It works with public and private repositories and supports GitHub Enterprise Cloud. Setup requires GitHub Actions and Issues to be enabled, available Actions minutes, and a fine-grained personal access token with write permissions. The project is in public preview, with ongoing feature development, and suggested fixes are not guaranteed to be fully accessible. It does not scan mobile apps, desktop applications, documents, email templates, or PDFs. Support requests and bug reports are handled through GitHub Issues.

IBM Equal Access Accessibility Checker automates accessibility checks for web content and applications, with tools aimed at web developers and accessibility auditors. Its rule engine connects checks to accessibility standards, including WCAG 2.2, and scans at page level. Results can identify the issue type, applicable WCAG success criteria, affected element, XPath, progression level, and a help link. Browser extensions are available for Chrome, Firefox, and Edge. They work in browser DevTools and include a visualization mode for keyboard checking. For CI/CD workflows, packages are available for Node, Cypress, and Java; the project Wiki also lists a Karma plugin and names Selenium, Puppeteer, Playwright, and Zombie as testing or parsing engines. The extension can combine up to 50 stored scans into a Microsoft Excel report. The Wiki says web data, rules, and the engine stay local rather than sending web data to servers or third parties. The tool is free at free. IBM cautions that automated checks cover only part of its accessibility requirements, so manual and screen reader testing should follow.