AccessLint vs GitHub Accessibility Scanner

AccessLint checks accessibility during development, on pull requests, and on live sites. Its WCAG 2.2 engine has 95 rules and a stated 53ms median audit across 5,000 real-world sites. Pull-request reviews inspect changed files and leave inline comments with the relevant rule and a suggested correction, but do not fail builds or block merges. Deploy-triggered scans require Starter or Pro, run asynchronously, and also do not synchronously fail builds. Saved user journeys can run daily, with email alerts for new violations or changes against a baseline. The toolkit provides checks for Playwright, Vitest, and Storybook, while pull-request reviews use a GitHub App. Starter and Pro include shareable read-only evidence reports with before-and-after screenshots of affected elements. Free covers public-repository pull-request reviews, one daily monitored flow, and violation trends. Starter costs $19 a month or $190 a year; Pro costs $349 a month or $3,490 a year. AccessLint says automated checks alone cannot make a site compliant.

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.