Best Accessibility Checker Chrome Extensions for Testing

Chrome extensions make accessibility testing quick and easy. They help you spot basic issues right in your browser, making it easier to start improving your site’s accessibility.

In this guide, we’ve listed some of the best accessibility checker Chrome extensions. They can help you find common issues and move your website toward better accessibility.

How We Selected The Chrome Extensions

There are plenty of Chrome extensions that claim to help with accessibility testing, but not all of them are worth your time. We chose tools that actually work well, are easy to use, and give clear results without unnecessary steps.

Here’s what we looked for:

• No sign-up or account setup required
• Full scan results available without a paid plan
• Clear, easy-to-understand issue summaries
• Tests your pages against the WCAG standards
• No bugs or crashes during testing
• Simple enough for non-developers

The selected tools focus on providing you with quick, reliable results without requiring extra setup or confusion. They’re built to make accessibility testing easier for everyone, whether you’re a developer, designer, or website owner taking your first steps toward accessibility.

---

Best Chrome Extensions for Accessibility Testing

Extension	Key Feature	Who Can Use It
Accessibility Checker by WebYes	Tests compliance with all current WCAG standards (2.0–2.2).	Website owners, developers, testers
WAVE Evaluation Tool	Visually displays accessibility errors and features using on-page icons.	Website owners, developers, QA testers
Accessible Web Helper	Performs accessibility scans and offers a built-in colour contrast checker.	Designers, front-end developers
Accessibility Insights for Web	Runs automated testing and provides guided manual checks.	Developers, testers
Siteimprove Accessibility Checker	Performs scans against WCAG standards and offers fix suggestions.	Developers, QA testers, enterprise teams
Silktide Accessibility Checker	Simulates how users with disabilities experience your website.	Website owners, content editors, developers

---

1. Accessibility Checker by WebYes

If you are looking for a quick and easy way to check your webpage for accessibility issues, the Accessibility Checker by WebYes is a great choice. It detects problems like missing alt text, poor heading structure, and low colour contrast directly in your browser.

The extension highlights problem elements right on the webpage, making it easy to see where accessibility issues occur. You can also check your page against any WCAG guideline or compliance level to understand how well your site meets accessibility standards.

Key features:

• Checks compliance with WCAG 2.0, 2.1, and 2.2 at levels A, AA, and AAA.
• Shows affected elements in real time and lets you inspect the code.
• Visualises focus order to confirm logical navigation.
• Displays all images with their alt text for quick review.
• Reveals the heading structure to ensure proper hierarchy.
• Supports testing on both desktop and mobile views.

Get Accessibility Checker by WebYes (opens in a new tab)

---

2. WAVE Evaluation Tool

The WAVE Evaluation Tool is a WCAG testing Chrome extension similar to Accessibility Checker by WebYes. It scans your webpage and uses icons to visually point out elements with accessibility issues, such as low colour contrast, missing alt text, and empty links.

A nice touch with the extension is that it also highlights the accessibility features already on your webpage. It shows what you’ve done right, like proper alt text, ARIA labels, and labelled form fields, giving you a clearer view of your site’s accessibility.

Key features:

• Highlights accessibility errors, alerts, and features directly on the page.
• Shows page structure and heading hierarchy.
• Visualises focus order for keyboard navigation.
• Includes a built-in colour contrast checker for manual testing.
• Lets you inspect code snippets tied to each issue for easier fixing.

Get WAVE Evaluation Tool (opens in a new tab)

---

3. Accessible Web Helper

Accessible Web Helper lets you run accessibility tests with multiple rulesets, including all current WCAG standards. It lists issues by severity and lets you highlight problem elements on the page. However, fix suggestions are limited to the premium version.

The extension also includes a colour contrast checker that helps you easily test text and background colour combinations. It displays the contrast ratio and shows whether your colours meet WCAG AA and AAA standards for small text, large text, and UI components.

Key features:

• Shows contrast ratios for small text, large text, and UI components.
• Includes a colour picker for easy selection and comparison of colours.
• Supports WCAG 2.0, 2.1, and 2.2 A/AA/AAA standards for targeted testing.
• Highlights elements with accessibility issues directly on the page.

Get Accessible Web Helper (opens in a new tab)

---

4. Accessibility Insights for Web

The Accessibility Insights for Web extension is built for developers who want deeper accessibility testing. Unlike the other extensions discussed so far, Accessibility Insights includes assisted checks and guided manual testing along with automated scans.

If you’re looking for an accessibility tool that goes beyond quick automated scans, this extension is a solid choice. It helps you not only find issues but also understand why they occur and how to fix them through clear, step-by-step guidance.

Key features:

• Runs quick automated scans to find common accessibility issues.
• Offers assisted checks for more detailed, manual testing.
• Guides you through a full accessibility evaluation process.
• Visualises colour contrast, landmarks, tab stops, and headings.
• Provides clear explanations and suggestions to fix each issue.

Get Accessibility Insights for Web (opens in a new tab)

---

5. Siteimprove Accessibility Checker

Siteimprove Accessibility Checker checks your web pages against the latest WCAG standards and accessibility best practices. It doesn’t stop there; it also provides clear explanations, actionable recommendations, and examples to help you fix issues effectively.

The extension includes a Design Kit that provides guidance on colour contrast, image alt text, heading structure, etc. It even has filters that mimic total, red-green, and blue-yellow colour blindness, helping you see how your website appears to different users.

Key features:

• Runs accessibility scans against WCAG and best-practice standards
• Provides design guidance for contrast, alt text, headings, and focus indicators
• Includes simulation tools for colour blindness and other visual conditions

Get Siteimprove Accessibility Checker (opens in a new tab)

---

6. Silktide Accessibility Checker

Silktide Accessibility Checker claims to run over 200 automated accessibility checks against the latest WCAG standards and best practices. It highlights issues directly on your webpage and provides step-by-step guidance to help you understand and fix them.

The extension includes tools to simulate dyslexia, colour blindness, and impaired vision, helping you see how your website appears to users with different accessibility needs. It also has tools like colour contrast checker, alt-text inspector, and screen-reader simulator.

Key features:

• Includes tools to simulate dyslexia, colour blindness, and impaired vision
• Features a built-in colour contrast checker and alt-text inspector
• Provides fix suggestions to help you resolve accessibility problems

Get Silktide Accessibility Checker (opens in a new tab)

---

Accessibility Extensions Are Not Complete Solutions

Accessibility Chrome extensions are great for quick checks. They help you catch issues like missing alt text, low colour contrast, or broken heading order right in your browser.

But these automated accessibility checkers only look at what the code shows. Even the best accessibility testing tools for Chrome can’t tell if an alt text is meaningful, if the link text makes sense, or if forms are easy to use with a keyboard or screen reader.

Basically, they can’t catch problems that require human judgment. That’s why relying only on an automated accessibility checker isn’t enough.

To make your website truly accessible, use accessibility Chrome extensions for the basics. Then follow up with manual testing and user testing. This helps you understand how real people experience your site and ensures everyone can use it comfortably.

Also, these browser extensions can only scan one page at a time, which makes them less practical for larger websites with multiple pages. For websites like that, using a more advanced accessibility platform, such as WebYes Accessibility, is a smarter choice.

Wrapping Up

Browser extensions make accessibility testing faster and easier. They help you spot common issues and understand how your page performs against accessibility standards.

But as mentioned earlier, these tools have their limitations. They’re great for quick checks, but they can’t catch nuanced issues; they need human review and testing.

Use extensions as a starting point, then follow up with manual and user testing. This balance ensures your website is not only compliant but truly inclusive.