axe-core vs Evinced

axe-core is a free, open-source accessibility testing engine for websites and other HTML-based interfaces. It is designed to run beside functional tests in unit, integration, browser, and other testing environments. Its rules cover WCAG 2.0, 2.1, and 2.2 at A, AA, and AAA levels, along with additional best practices. Deque says automated checks find an average of 57% of WCAG issues, while uncertain findings are marked for manual review. Installation is documented through npm or pnpm, with tests calling the axe.run() API. The API lists Microsoft Edge, Google Chrome, Mozilla Firefox, and Apple Safari; Internet Explorer 11 is deprecated. Chrome and Firefox are tested on every pull request. JSDOM support is limited, and color-contrast checks do not work there. axe-core uses the Mozilla Public License 2.0. Security updates are available for minor lines up to 18 months old. Vulnerabilities are requested by email, with a stated 24-business-hour response and no bug bounty.

Evinced provides tools for teams working to find and prevent accessibility issues in websites and mobile apps. Its analysis uses rule sets, computer vision, AI, and other algorithms, and groups recurring code patterns so teams can connect many reported issues to fewer components. Test Automation SDKs work with web and mobile apps and support frameworks including Playwright, Selenium, Cypress, WebdriverIO, XCUITest, Espresso, and Appium. CI integrations include Jenkins and CircleCI, with JSON, JUnit, and CSV output. Site Scanner crawls websites, tracks issues over time, supports login-required pages, and can scan on-premises development, QA, and staging environments using outbound HTTPS. Web Flow Analyzer follows a user journey, reports on the flow, and can create Jira or Azure DevOps tickets. Mobile Flow Analyzer examines real or simulated Android and iOS devices without SDK installation or code-level app access. Other tools include a Figma design checker, chatbot integrations, and MCP tools for compatible AI coding systems. Pricing is on request; a 14-day Site Scanner trial is listed at 0.00 USD, with no credit card required and stated URL and per-scan limits.