Professional accessibility scanner for Chrome

A11y Lens scans web pages for WCAG violations using axe-core, displays results in Chrome's Side Panel, and highlights issues directly on the page with severity-coded outlines.

Add to Chrome
Core Features

WCAG 2.1 AA / 2.2 AA

Scan pages against WCAG 2.1 AA or WCAG 2.2 AA conformance levels using axe-core accessibility testing engine.

Chrome Side Panel

Results display in Chrome's native Side Panel interface, keeping your workflow uninterrupted while you inspect violations.

Visual highlighting

All violations are outlined on the page with color-coded borders. Click any violation to scroll to it and see it pulse.

Severity grouping

Violations organized by impact level: Critical, Serious, Moderate, Minor

Expandable details

Each violation card expands to show affected elements, WCAG criteria, impact level, and remediation guidance.

Freemium model

3 free scans per day. Upgrade to Pro with a license key for unlimited scans and support development.

Technical Specifications

Engine

axe-core

Platform

Chrome Extension (Manifest V3)

Interface

Chrome Side Panel

Framework

Preact + TypeScript

Build Tool

Vite

Standards

WCAG 2.1/2.2 AA