Horn
The facts below are what the maker publishes about Horn, checked and dated. Our editors have not written about it yet.
The facts
Each one read from Horn's own pages, with the date it was checked.
What it does
- Automated scans
- Yeschecked 23 Sep 2026
- CI/CD integration
- Yeschecked 23 Sep 2026
- CI/CD output
- Horn supports SARIF for GitHub Code Scanning, JUnit XML, and JSON output.checked 11 Oct 2026
- Customization
- The site says developers can add custom checks with the Check trait.checked 11 Oct 2026
- Extensibility
- The README says custom checks can be added through the Check trait.checked 12 Oct 2026
- GitHub Action
- The site says the GitHub Action supports automatic SARIF upload.checked 11 Oct 2026
- GitHub integration
- The GitHub Action can automatically upload SARIF results to GitHub Code Scanning.checked 12 Oct 2026
- GitLab integration
- The README includes a GitLab CI example that publishes JUnit XML as a test report artifact.checked 12 Oct 2026
- License
- The project site says Horn is released under the MIT and Apache 2.0 licenses.checked 12 Oct 2026
- Manual review limit
- The site identifies 48 human-judgment conditions for manual review and 2 conditions without a defined test.checked 11 Oct 2026
- Manual review tools
- Yeschecked 23 Sep 2026
- Matterhorn checks
- For Matterhorn Protocol 1.1, Horn automates 87 machine-checkable conditions and surfaces 48 human-judgment conditions for manual review.checked 12 Oct 2026
- Mobile testing
- Nochecked 23 Sep 2026
- Output formats
- Horn supports human-readable text, JSON, SARIF, and JUnit XML output.checked 12 Oct 2026
- PDF standards
- Horn validates PDF/UA-1 and PDF/UA-2 documents.checked 12 Oct 2026
- PDF/UA coverage
- The site says Horn automates 87 machine-checkable Matterhorn Protocol 1.1 conditions and surfaces 48 human-judgment conditions for manual review.checked 11 Oct 2026
- Performance
- The project README reports approximately 660 PDFs per second with parallel processing in release mode.checked 12 Oct 2026
- Purpose
- Horn is an open-source PDF/UA accessibility checker based on the Matterhorn Protocol.checked 12 Oct 2026
- Release
- The GitHub releases page lists v0.4.0 as the latest release.checked 12 Oct 2026
- Runtime dependencies
- The site lists 0 runtime dependencies.checked 11 Oct 2026
- Speed
- The site says Horn processes 500+ PDFs per second with parallel processing.checked 11 Oct 2026
Where it runs
- Browser extension
- Nochecked 23 Sep 2026
- Desktop platforms
- The README describes Linux, macOS, and Windows support, and the releases page lists binaries and desktop installers for those platforms.checked 12 Oct 2026
Money
- Free plan
- Yeschecked 23 Sep 2026
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