Side by side
Horn vs WP ADA Compliance Check
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 APIExtensionLinux+4
Horn offers broad PDF accessibility checking with command-line, desktop, browser, and CI delivery options. Its manual-review conditions mean results should be followed by human assessment.
Visit Horn
Free plan Self-hostedWeb
WP ADA Compliance Check provides a free limited scanner and broader paid plans with automated fixes, media scanning, and reporting. Manual validation remains necessary for accessibility assurance.
Visit WP ADA Compliance CheckThe facts
| Horn | WP ADA Compliance Check | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Not published |
| Runs on | API, Extension, Linux, Mac, Self-hosted, Web, Windows | Self-hosted, Web |
| Lowest paid plan | Not published | 1 Website - WordPress Plan - WP ADA Compliance Check: $179.99 a year |
| Plans published | None | 5 |
| Maker | Not published | Not published |
| Website | github.com | wpadacompliance.com |
| On accessibility testing software | #60 of 168 | #56 of 168 |
Horn: what it does well
- Validates PDF/UA-1 and PDF/UA-2
- Automates 87 Matterhorn conditions
- Multiple CLI, desktop, web, and CI options
- SARIF and JUnit XML outputs
- Zero runtime dependencies
What to know first
- 48 conditions still require human judgment
- Two conditions have no defined test
- Automated scans are not a complete assessment
WP ADA Compliance Check: what it does well
- Evaluates WCAG 2.1, WCAG 2.2, and Section 508
- Offers automated scans and manual review tools
- Full version lists 83 checks and 28 fixes
- Scans PDFs and iframe embeds
- Reports export to Excel
What to know first
- Basic scans are limited to 15 pages
- Basic cannot inspect theme files
- No free trial
- Automated checks cannot guarantee legal compliance
Alternatives to Horn Alternatives to WP ADA Compliance Check The whole list