Accessibility & Responsive Checker icon

Accessibility & Responsive Checker

by Rocco Caruso · Developer Tools
Manifest V3 Free
View in Chrome Web Store Data as of 16 Oct 2026

Analyzes accessibility, responsive design, and W3C HTML/CSS standards of web pages with detailed reports

Users
27
+5 in 30 days
Rating
5.0 / 5
unchanged in 30 days
Ratings
5
0 in 30 days
Store rank
#135K
#112K among extensions
Version
1.5
updated 31 Aug 2026

Users

monthly, 8 months
01427Feb 2026Jul 2026Oct 2026
Latest, 16 Oct 2026: 27 usersMove the mouse over the chart for any month

Ratings count

monthly, 8 months
025Feb 2026Jul 2026Oct 2026
Latest, 16 Oct 2026: 5 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About Accessibility & Responsive Checker

Accessibility & Responsive Checker is an all-in-one developer tool designed to audit web pages for accessibility (WCAG) compliance and mobile responsiveness in a single click. Unlike standard checkers that only look at the desktop view, this extension performs a Dual-Pass Analysis: Desktop Analysis: Scans the current view for structural and accessibility issues. Mobile Simulation: Automatically attaches the debugger to simulate a mobile viewport (iPhone X dimensions), detecting layout breakages that only appear on smaller screens. Whether you are a Developer, QA Tester, or Designer, this tool helps you deliver higher-quality, inclusive web experiences. 🔍 Key Features 1. Advanced Accessibility Testing (Powered by axe-core) Detects WCAG 2.1/2.2 A and AA violations. Identifies low contrast text, missing ARIA labels, and incorrect roles. Flags "ghost" interactive elements (buttons without tabindex). Checks for focusable elements hidden from screen readers (aria-hidden="true"). 2. Deep Responsive Design Analysis Horizontal Overflow Detection: Finds elements causing unwanted horizontal scrolling on mobile. Touch Target Validator: Checks interactive elements against modern usability standards: Critical: Elements smaller than 24px (impossible to tap). Warning: Elements smaller than 44px (hard to tap). Font Legibility: flags text smaller than 11px. Responsive Tables & Media: Identifies tables, images, or videos that break the layout without scroll wrappers. 3. Mobile UX Enhancements Input Field Analysis: Suggests specific input types (e.g., email, tel, numeric) instead of generic text inputs to trigger the correct mobile keyboard. Viewport Configuration: Checks for missing meta tags or user-zoom restrictions (user-scalable=no). 4. Detailed Reporting View a clean, categorized summary of all issues directly in the popup. One-Click Copy: Generate a full text report (including HTML snippets and selectors) to paste into tickets (Jira, Trello, GitHub) or emails.

Growth

WindowUsersChangeRatingsRating
7 days+2+8.0%00.00
30 days+5+22.7%00.00
6 months+18+200.0%00.00

Version history

2 versions recorded
1.531 Aug 2026
1.214 Feb 2026

Details

Category
Developer Tools
First seen
14 Feb 2026
Size
183 KB
Languages
en
Pricing
Free
Extension ID
pmdgkiodbebaecnadfhadhoplhkbhode

Permissions and risk

Moderate riskimpact 3, likelihood 2
Permissions
activeTabscriptingdebuggerstorage
Site access
<all_urls>https://validator.w3.org/*https://validator.nu/*https://jigsaw.w3.org/*
Can read and change data on every website you visit.

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