A11yEngine - WCAG & Accessibility Checker

Free WCAG 2.2 accessibility checker. Scans for ARIA, color contrast, screen reader & keyboard issues. AI code fixes in React & Vue.

A11yEngine is a free WCAG 2.2 accessibility checker and AI-powered developer tool for Chrome. Audit any webpage for accessibility violations instantly no configuration required. ✦ 85+ automated WCAG 2.2 AA/AAA checks powered by axe-core ✦ 37 custom local heuristics: focus management, ARIA misuse, screen reader compatibility, color contrast, keyboard navigation, SPA focus loss, and live region overload ✦ AI code remediation patches in React (TypeScript), Vue, and Tailwind CSS powered by Groq Cloud ✦ 20-check technical SEO audit engine: meta tags, canonical URLs, mobile viewports, Open Graph, schema markup, and link health ✦ Real-time visual viewport overlays that annotate every violation directly on your live page ✦ Playwright E2E test generation for regression-proofing accessibility fixes ✦ Comprehensive triage dashboard with WCAG Level (A/AA/AAA) and POUR principle filters ✦ Export executive corporate reports as HTML, CSV, Markdown, and JSON for stakeholder handoff ✦ ADA compliance risk scoring, legal exposure estimation, and developer remediation time estimates ✦ Deep Shadow DOM, same-origin iframe, and modern SPA (React / Next.js / Vue / Vite) support Built for frontend developers, QA engineers, and accessibility consultants who need actionable WCAG auditing in their workflow not just a list of raw HTML errors. The AI fix suggestions cover accessible component patterns, ARIA label corrections, focus-visible outlines, and semantic HTML structure. Detects: missing alt text, low color contrast, invisible focus indicators, broken focus traps, vague link text, missing skip links, positive tabindex, unlabelled form inputs, heading hierarchy skips, Section 508 / ADA compliance violations, broken links, and 50+ more. Privacy-First: • 100% in-browser scanning DOM trees and visual layout frames never leave your machine. • Client-side PII scrubber automatically redacts cards, passwords, SSNs, and tokens before AI analysis. • No account required. Zero tracking cookies. Optional anonymous metrics can be toggled off at any time in Settings.