Acceris vs Alfa
Acceris
acceris.euAlfa
github.comSide by side
| Figure | Acceris | Alfa |
|---|---|---|
| Price from | $39/mo | 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 | 4 | 1 |
| Spec score · Accessibility Testing Software | 8.3 (#48) | 9.0 (#8) |
| Automated scans | It tests pages in a real browser and reports the affected HTML element, CSS selector, issue explanation, and severity. | Yes |
| CI/CD integration | Yes | Yes |
| Free plan | Yes | Yes |
| Integrations | The developer use case lists GitHub Actions, GitLab CI, and Bitbucket Pipelines, with webhooks that can post scan results as pull request comments. | The integrations repository lists packages for Angular, Chai, Cheerio, Cypress, Jasmine, Jest, jQuery, Playwright, Puppeteer, React, Selenium, Unexpected, Vitest, Vue, and WebdriverIO. |
| Remediation guidance | Yes | Yes |
| Standards | The site says Acceris covers RGAA 4.1 and WCAG 2.1 AA. | It tests against accessibility standards such as the Web Content Accessibility Guidelines (WCAG). |
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.