Accessibility Linter

A static analysis tool that scans source code — typically HTML, CSS, and related web technologies — for accessibility violations against standards such as WCAG. Accessibility linters can be integrated into code editors, build pipelines, or run as standalone tools to flag issues like missing alt text, insufficient colour contrast, missing form labels, and improper ARIA usage before code is deployed. Examples include Pa11y, axe-core, and eslint-plugin-jsx-a11y. Unlike full-page automated accessibility checkers that test rendered web pages, linters operate on source code and can catch issues earlier in the development process.