No. 20 of 133 ·Website Accessibility Tools

AllyCat

Windows · Mac · Linux

Freedom report

Three barsScore 6.9

Free tierA free tier is on its own pricing page
Open codeNo open-source code on record
Runs widely3 of 6 device platforms
DocumentedPlans, terms and facts published

AllyCat is ranked #20 of 133 in website accessibility tools on Freedom251. It runs on Linux, macOS, Windows. There is a free plan.

AllyCat plans and pricing

All plans

AllyCat Free MIT-licensed CLI package; Node.js ≥ 20; full scans require Chromium github.com · 5 Oct 2026

Compared on website accessibility tools

WCAG version: wcag 2.2
CI/CD integration: Yes

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The record

Purpose: AllyCat scans source code for WCAG accessibility violations in editors, on file saves, and in CI without requiring a deployed app.
Supported source: It supports HTML, JSX/TSX, Vue single-file components, and Angular templates.
Scan modes: Quick scans use JSDOM without a browser, while full scans use Playwright for contrast checking and require Chromium.
Source locations: Findings include exact source line numbers and clickable VS Code links.
Watch mode: Watch mode rescans files after saves and marks violations as new, fixed, or unchanged.
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.
CI integration: CI features include severity-based exit gates, saved baselines, git-changed-file scoping, and JSON report export.
Output formats: Reports can be printed in the terminal or JSON, or generated as a self-contained HTML report.
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.
RTL: Opt-in RTL support for Hebrew, Arabic, Persian, and other RTL interfaces is labeled experimental.
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.
Requirements: AllyCat requires Node.js 20 or later; full scans additionally require Chromium installed through Playwright.
License and maker: The repository identifies the project as MIT-licensed, copyright 2026 Dotan Siman Tov.
Audience: The README recommends AllyCat for pre-commit hooks, local development, and pull request pipelines.
Price from: Free

Where it ranks on Freedom251

Best Website Accessibility Tools in 2026#20 of 133

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Sources

github.com/AllyCatHQ/allycat-core· checked 5 Oct 2026