Accessibility Checker (a11y) for Chrome
Runs an instant WCAG accessibility audit checking color contrast ratios, ARIA roles, form labels, landmarks, and missing alt text.
Replaces:
WAVE Evaluation Toolaxe DevToolsAccessibility Insights
Why Developers Switch to OmniDev
Installing a separate browser extension just for accessibility checker (a11y) bloats Chrome memory, adds permission risk, and clutters your toolbar. OmniDev integrates Accessibility Checker (a11y) natively alongside 53 other frontend and QA tools.
Runs an instant WCAG accessibility audit checking color contrast ratios, ARIA roles, form labels, landmarks, and missing alt text.
Runs inside an isolated Shadow DOM panel so host page styles never break or leak
Zero background RAM overhead when idle — lazy-loaded on demand in milliseconds
Replaces standalone WAVE Evaluation Tool, axe DevTools, Accessibility Insights extensions inside a single 54-in-1 toolkit
Shadow-DOM isolated • Zero host-page CSS leakage
STEP 01
Install OmniDev from the Chrome Web Store and open the popup or press your custom shortcut.
STEP 02
Select "Accessibility Checker (a11y)" under the Analytics category (or search "Accessibility Checker (a11y)" in the launcher).
STEP 03
Inspect, capture, or export results directly on the live page — 100% locally in your browser.
See How OmniDev Compares
Detailed side-by-side comparisons against standalone Chrome extensions:
Frequently Asked Questions — Accessibility Checker (a11y)
Is the Accessibility Checker (a11y) tool in OmniDev completely free?
Yes. Accessibility Checker (a11y) and all 54 tools in OmniDev are 100% free to use with no account signup or paywall.
Does Accessibility Checker (a11y) send my webpage data to an external server?
No. Accessibility Checker (a11y) runs locally inside your browser tab. OmniDev is architected local-first and never uploads your DOM, storage, or network payloads to a Jambo backend.
Which standalone Chrome extensions does Accessibility Checker (a11y) replace?
Accessibility Checker (a11y) replaces single-purpose extensions such as WAVE Evaluation Tool, axe DevTools, Accessibility Insights, saving browser RAM and reducing extension permission sprawl.
More Analytics Tools in OmniDev
Every tool below is included in the same single Chrome extension install.
Explore All 54 Tools
Performance Analyzer
Measures real-time Core Web Vitals (LCP, CLS, INP, FCP, TTFB), resource weight breakdown, and DOM complexity.
SEO Checker
Audits on-page SEO health: title/description length, canonical tags, robots directives, heading hierarchy (H1–H6), and missing alt attributes.
Storage Inspector
Unified browser storage explorer to inspect, search, edit, and clear localStorage, sessionStorage, and cookies.
Tech Stack Analyzer
Detects frontend frameworks (React, Next.js, Vue, Nuxt, Svelte, Astro), UI libraries, analytics, CDNs, and server headers locally.
Design Drift Inspector
Audits the live DOM against your design system tokens to catch off-palette colors, rogue font sizes, and non-standard spacing values.
Link Checker
Scans all internal and external anchor links on the current page to highlight broken 404 URLs, redirects, and insecure links.
Get Accessibility Checker (a11y) + 53 More Tools in 1 Click
Stop cluttering Chrome with dozens of single-purpose extensions. Install OmniDev free and run everything locally.
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