Alfa vs Evinced

Alfa is a free, open accessibility testing engine for websites built with HTML, CSS, and JavaScript. It checks pages against accessibility standards such as WCAG, using included rules or pluggable rules in the ACT Rules Format. Developers can add custom rules and filter results by conformance level or WCAG version. Audit output follows the Evaluation and Report Language schema as JSON-LD, and the command-line interface can audit a single page and save results as JSON. Scraper and crawler tools create page representations and discover pages across a site or subdomain. Ready-made integrations cover frameworks and test tools including Angular, React, Vue, Cypress, Jest, Playwright, Puppeteer, Selenium, and WebdriverIO. Alfa is distributed as separate npm packages under the MIT license. It runs in ECMAScript 2022-compatible JavaScript environments, including recent Node.js and browser versions. Building from source requires Node.js 20 or later and Yarn. The project says most integrations are experimental and may change; older environments may be targetable from source but are not explicitly supported.

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.