CAAT vs IBM Equal Access Accessibility Checker
CAAT
caat.report
IBM Equal Access Accessibility Checker
ibm.comSide by side
| Figure | CAAT | IBM Equal Access Accessibility Checker |
|---|---|---|
| Price from | €41.67/mo | Free |
| Free plan | — | Yes |
| Free trial | Yes | — |
| Open source | — | Yes |
| Web | Yes | Yes |
| API | — | Yes |
| Self-hosted | — | Yes |
| Plans published | 3 | 2 |
| Spec score · Accessibility Testing Software | 8.2 (#57) | 9.0 (#7) |
| Spec score · Website Accessibility Tools | 8.0 (#46) | 9.0 (#6) |
| Free plan | No | Yes |
| Limits | Each automatic analysis covers one URL or one PDF page; included monthly analysis credits limit total usage across domains. | IBM says automated checks cover only a subset of its accessibility requirements and should be followed by manual and screen reader testing. |
| Purpose | CAAT is software for accessibility professionals and organizations to test accessibility and document results. | The checker automates accessibility checking of web content and applications for web developers and accessibility auditors. |
| Support | The maker lists [email protected] as its contact email and offers a 45-minute online demo. | The project Wiki directs users to submit bugs, questions, and suggestions through GitHub issues. |
Plans
IBM Equal Access Accessibility Checker
- Free and open sourceFree
- Free/open-source toolkitFree
In their own words
IBM Equal Access Accessibility Checker
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.