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AllyCat

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AllyCat

Free

MIT-licensed CLI package; Node.js ≥ 20; full scans require Chromium

Every plan, in full

On the record

AI assistance
AllyCat can produce AI-ready fix prompts for copying into an AI agent, and the README says this requires no API key and sends no data.github.com · read 5 Oct 2026
Audience
The README recommends AllyCat for pre-commit hooks, local development, and pull request pipelines.github.com · read 5 Oct 2026
CI/CD integration
Yesgithub.com · read 22 Sep 2026
CI integration
CI features include severity-based exit gates, saved baselines, git-changed-file scoping, and JSON report export.github.com · read 5 Oct 2026
Known limitation
Runtime CSS-in-JS styles from styled-components, Emotion, and styled-jsx cannot be statically analyzed for contrast, and the scanner warns per file.github.com · read 5 Oct 2026
License and maker
The repository identifies the project as MIT-licensed, copyright 2026 Dotan Siman Tov.github.com · read 5 Oct 2026
Output formats
Reports can be printed in the terminal or JSON, or generated as a self-contained HTML report.github.com · read 5 Oct 2026
Purpose
AllyCat scans source code for WCAG accessibility violations in editors, on file saves, and in CI without requiring a deployed app.github.com · read 5 Oct 2026
Requirements
AllyCat requires Node.js 20 or later; full scans additionally require Chromium installed through Playwright.github.com · read 5 Oct 2026
RTL
Opt-in RTL support for Hebrew, Arabic, Persian, and other RTL interfaces is labeled experimental.github.com · read 5 Oct 2026
Scan modes
Quick scans use JSDOM without a browser, while full scans use Playwright for contrast checking and require Chromium.github.com · read 5 Oct 2026
Source locations
Findings include exact source line numbers and clickable VS Code links.github.com · read 5 Oct 2026
Standards
The setup supports WCAG 2.1 AA, WCAG 2.2 AA, and automated WCAG AAA; the README notes full AAA requires a manual audit.github.com · read 5 Oct 2026
Supported source
It supports HTML, JSX/TSX, Vue single-file components, and Angular templates.github.com · read 5 Oct 2026
Watch mode
Watch mode rescans files after saves and marks violations as new, fixed, or unchanged.github.com · read 5 Oct 2026
WCAG version
wcag 2.2github.com · read 22 Sep 2026

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