Alfa vs tota11y
Alfa
github.comtota11y
github.comSide by side
| Figure | Alfa | tota11y |
|---|---|---|
| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | Yes | — |
| macOS | Yes | — |
| Linux | Yes | — |
| API | Yes | — |
| Self-hosted | Yes | — |
| Plans published | 1 | 1 |
| Spec score · Accessibility Testing Software | 9.0 (#8) | 7.4 (#136) |
| Integrations | The integrations repository lists packages for Angular, Chai, Cheerio, Cypress, Jasmine, Jest, jQuery, Playwright, Puppeteer, React, Selenium, Unexpected, Vitest, Vue, and WebdriverIO. | The repository describes a community example integrating Tota11y into a webpack build for a React and TypeScript project. |
| License | Alfa is released under the MIT license. | The Babylon fork is licensed under MIT, MPL-2.0, and Apache-2.0. |
| Purpose | Alfa is an open, standards-based accessibility conformance testing engine for websites built with HTML, CSS, and JavaScript. | Tota11y visualizes widespread web accessibility errors in a way intended to be understandable to content creators and editors. |
Plans
In their own words
Alfa
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.