Side by side
AccessibilityChecker.org vs Alfa
Both stand on accessibility testing software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan APIExtensionWeb
AccessibilityChecker.org combines WCAG 2.2 scanning with recurring schedules and development integrations. Its paid tiers are organized by URL allowance, while larger multi-domain deployments require a custom quote.
Visit AccessibilityChecker.org Free plan APILinuxMac+3
Alfa offers rule-based accessibility checks, structured reports, and a range of developer integrations. Teams should account for the experimental status of most integrations and the stated runtime requirements.
Visit AlfaThe facts
| AccessibilityChecker.org | Alfa | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | No | Not published |
| Runs on | API, Extension, Web | API, Linux, Mac, Self-hosted, Web, Windows |
| Lowest paid plan | Lite: $89 a month | Free or on request |
| Plans published | 4 | 1 |
| Maker | AccessibilityChecker.org | Alfa |
| Website | accessibilitychecker.org | github.com |
| On accessibility testing software | #8 of 169 | #4 of 169 |
AccessibilityChecker.org: what it does well
- Checks sites against WCAG 2.2
- Scheduled scans supported
- API, browser extension, and CI/CD integration
- Seven-day trial available
- Plans cover up to 500 listed URLs
What to know first
- No free plan
- Scan limit listed as 25
- Annual starting price differs from named monthly tiers
Alfa: what it does well
- Includes WCAG-based rules and supports pluggable ACT rules.
- Custom rules and result filters are supported.
- CLI can audit a page and save JSON results.
- Scraper and crawler integrations cover pages across a site.
- Free and released under the MIT license.
What to know first
- Most integrations are experimental and may change.
- Building from source requires Node.js 20 or later and Yarn.
- Older environments are not explicitly supported.
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