Alfa vs Welcoming Web

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.

Welcoming Web is a website accessibility management platform combining a visitor-facing widget, automated audits, remediation support, and ongoing monitoring. The widget lets visitors change text size, contrast, spacing, and motion, and offers profiles for common accessibility needs. Teams can use guided fixes and AI-assisted remediation suggestions, with manual review tools and reports. Welcoming Web says it supports WCAG 2.2, ADA Title III, EN 301 549, and the Equality Act 2010, but does not issue or guarantee compliance certification. Listed website integrations include WordPress, Shopify, Wix, Squarespace, Webflow, Drupal, Magento, Joomla, WooCommerce, React, Angular, and Vue.js; workflow connections include GitHub, Jira, Slack, and CI/CD pipelines. Setup options are an embedded script, Google Tag Manager, or API. Scans are read-only, and the first free browser scan checks one page. The Free plan includes the core widget and basic features. Pro starts at $19/month with traffic-based pricing and adds remediation, reports, analytics, and priority email support.