Accessibility Checker

A software tool that automatically evaluates an application, document, or website against accessibility standards and guidelines, identifying potential barriers for users with disabilities. Accessibility checkers may be built into development environments (such as Apple's Accessibility Inspector or Android's Accessibility Scanner), integrated into web browsers (such as axe or WAVE), or operate as standalone applications. They typically check for issues like missing alternative text, insufficient colour contrast, missing form labels, and improper heading hierarchy. While automated checkers can identify many common accessibility problems, they have limitations in completeness, correctness (false positives), and specificity, and cannot fully substitute for manual testing with assistive technologies and real users with disabilities.