Accessibility Checker for Developers, Testers, and Designers in Chrome

Latest Version

Version
4.96.1
Update
November 8, 2024
Size
2.89MiB
Developer
www.deque.com
Category
Users
300,000+
Rating
3.98246 ★
Manifest Version
3
Web Store Status
Languages Support
English (United States)
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Permissions
Tabs
Debugger
Storage
UnlimitedStorage
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axe DevTools - Web Accessibility Testing Extension

Find and fix more accessibility issues during website development with axe DevTools.

The free axe DevTools browser extension is a fast, lightweight, yet powerful testing tool driven by the world’s most trusted accessibility testing engine, axe-core, developed by Deque.

Why use axe DevTools to build accessible websites?
-To deliver brilliant user experiences for everyone, including the 1 billion people globally living with a disability today.
-To avoid wasting time chasing fake issues. Only axe prevents false positive results.
-To improve accuracy, preventing tickets from resurfacing again and again.
-To reduce the risk and cost of accessibility lawsuits.

★ Automated testing
With the push of a button, axe DevTools analyzes your site, automatically surfacing the majority of common accessibility issues—almost triple the industry average. Drill down into each issue, inspect the source of the problem and leverage extensive free remediation guidance to fix it quickly and accurately.

★ No False Positives
Nobody has time to chase issues that aren’t actually issues. Axe DevTools reports only issues with absolute certainty. Other tools report irrelevant and inaccurate results, wasting your time, money, and productivity on rework.

★ The fastest and most effective path to accessible
Using axe DevTools to proactively find and fix accessibility issues significantly reduces the need for manual testing, giving you quick and easy wins without disrupting your development velocity.

Upgrade to axe DevTools Pro to do so much more:

★ Intelligent Guided Testing™ (IGT)
Perform more advanced testing without having to become an accessibility expert. Using a simple question and answer format, IGT leverages machine learning to help you quickly find and fix issues that are not detectable by automated testing alone. Adding IGT can get you 8o% coverage or more—while you code.

★ Component-level testing
Make your testing more agile by focusing only on the specific parts of a page relevant to your immediate work. Reduce patching and retesting by finding accessibility bugs that could break existing use cases.

★ Export, Save and Share
Collaborate across your dev team! With one click, create a customized URL with all issue description information to share with colleagues or your issue tracking software of choice. Save the rest of your team time and effort and help them build inclusive experiences.

★ What’s left to test?
After you’ve finished automated and Intelligent Guided Tests, now you can generate and share a “Remaining Testing” report, listing what’s left for manual testers. Accessibility experts can pick up exactly where you left off to catch the remaining complex issues.

Use of this extension is governed by this license agreement https://www.deque.com/terms-of-use/axe-ext/ and the privacy policy linked under the developer information

Data collection information can be found here: https://docs.deque.com/devtools-server/4.0.0/en/data-collection#axe-devtools-browser-extension-free

Upgrading to Pro gives you more control over what data is collected.
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Source Manifest.json

{"update_url": "https://clients2.google.com/service/update2/crx", "name": "axe DevTools - Web Accessibility Testing", "manifest_version": 3, "icons": { "16": "assets/images/axe16.png", "48": "assets/images/axe48.png", "128": "assets/images/axe128.png" }, "devtools_page": "devtools.html", "background": { "service_worker": "background-worker.bundle.js" }, "content_security_policy": { "extension_pages": "script-src 'self'; object-src 'self'" }, "web_accessible_resources": [ { "resources": [ "highlighter.js", "axe-versions/latest/axe.js", "axe-versions/4.8.4/axe.js", "axe-versions/4.9.1/axe.js", "axe-versions/4.10.0/axe.js", "axe-versions/4.10.1/axe.js", "axe-versions/4.10.2/axe.js" ], "matches": [ "" ] } ], "content_scripts": [ { "matches": [ "" ], "js": [ "browser-polyfill.js", "vendor.bundle.js", "content.bundle.js" ], "all_frames": true, "run_at": "document_start", "match_about_blank": true } ], "permissions": [ "tabs", "debugger", "storage", "unlimitedStorage" ], "storage": { "managed_schema": "schema.json" }, "description": "Accessibility Checker for Developers, Testers, and Designers in Chrome", "offline_enabled": true, "minimum_chrome_version": "88", "incognito": "split", "externally_connectable": { "matches": [ "http://local.axepro.com:3000/*" ] }, "action": { "default_icon": { "16": "assets/images/axe16.png", "48": "assets/images/axe48.png", "128": "assets/images/axe128.png" }, "default_popup": "popup.html", "default_title": "Axe Accessibility", "browser_style": true }, "version": "4.96.1"}
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How to download and manually install axe DevTools - Web Accessibility Testing extension for Chrome

Looking for a way to install axe DevTools - Web Accessibility Testing extensions for Chrome, you can search for them in the Chrome Web Store, clicking the "Add to Chrome" button, and following the straightforward process.

However, you may need to install axe DevTools - Web Accessibility Testing extensions manually, this article outlines two simple methods to effortlessly install axe DevTools - Web Accessibility Testing extensions, whether they come as unpacked folders in compressed formats like .zip or as .crx files.

Method 1: Download axe DevTools - Web Accessibility Testing extension and manually install through Drag &Drop

If you ever need to manually install a axe DevTools - Web Accessibility Testing extension for Chrome, don't worry, it's a simple process. Just follow these easy steps, and you will have your extension ready to use in no time.

Step 1: Download the axe DevTools - Web Accessibility Testing Extension by clicking the "Download CRX" button on the website.

Look for the axe DevTools - Web Accessibility Testing extension you wish to install. Go to the website and download the axe DevTools - Web Accessibility Testing extension package, which is usually a .CRX file and comes in a zipped file. Here ".crx" file is the format for axe DevTools - Web Accessibility Testing extension that contains all the data.

Step 2: Extract &Arrange Files

Once the file is downloaded, extract that file into its own folder. Similarly, give that extension files a permanent home. In other words, keep it in a folder that you don't accidentally delete it because these files will be needed to make that extension work.

Step 3: Go to the Chrome Extensions Page

Open Google Chrome and in the address bar, type chrome://extensions; it will open the Google Chrome extensions page. Make sure that "My extensions" is selected in the sidebar.

Step 4: Drag and Drop the Extension

Now, go to the folder where you extracted the axe DevTools - Web Accessibility Testing extension and drag &drop the extension file from there anywhere onto the extension page within Google Chrome.

Step 5: Complete the Installation

Once you drag and drop the extension file, follow the steps that Google Chrome takes you through. Similarly, if the extension file is of .crx file format, you will be required to review the permissions and then add the extension.

Now, you can manage that added extension as you would like to with any other Chrome extension that you added through Chrome Webstore. Its icon will also appear in the Google Chrome Menu on the right side of the address bar once you activate it.

Method 2: Download axe DevTools - Web Accessibility Testing extension for Chrome and install in Developer Mode

This is another method to install axe DevTools - Web Accessibility Testing extension manually, but the twist is that here, you install by enabling the developer mode option provided in Google Chrome. This mode is commonly used for testing extensions or running unpublished tools.

Step 1: Download the axe DevTools - Web Accessibility Testing extension file

Select and download the axe DevTools - Web Accessibility Testing extension by clicking the 'Download CRX' button on the website.

Step 2: Extract the downloaded contents

Convert the file to a ZIP file if it is in CRX format then extract the axe DevTools - Web Accessibility Testing extension zip file or folder that you downloaded. Make sure you extract it using the same folder name and keep it safely in another folder, so you don't delete it by mistake. The extracted folder will be needed to keep your axe DevTools - Web Accessibility Testing extension running.

Step 3: Open Chrome Extension Setting Page

In the address bar of Google Chrome, type chrome://extensions and open the Chrome Extension Page.

Step 4: Enable Developer Mode

After opening the Chrome Extension page, look at the top right side, and you will find the toggle option of "Developer mode."Simply enable that developer mode option.

Step 5: Load the Unpacked Extension

Once you enable the developer mode option, you will see the menu of Load Unpacked, Pack Extensions and Update. From that, select the option "Load unpacked."

Step 6: Select the Extension Folder

Once the pop-up opens upon clicking Load unpacked, select the axe DevTools - Web Accessibility Testing extension directory and click on the "Select Folder "button.

Step 7: Confirm and Install

After you select an extension folder of a Google Chrome extension you're installing manually, confirm its installation for the final time and let the installation complete.

Conclusion

Here we've made a step-by-step guide on How to manually install axe DevTools - Web Accessibility Testing extension in 2 ways. We hope this guide proves helpful.

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User reviews

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Paul G (ID: 000000ed62836f6e) Voted 5 ★ - Updated 10/13/2023 A valuable resource in checking web accessibility. Hopefully even more clever tricks can be included to automate accessibility checking.

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Anthony Cunningham (ID: 0000007e3f729575) Voted 1 ★ - Updated 05/11/2023 Constantly badgers the user to upgrade to the paid version. Not worth the aggravation.

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James Reetzke (ID: 000000afa9eaba98) Voted 2 ★ - Updated 04/13/2023 Doesn't seem to do much without purchasing the "pro" version. Not sure why this is so highly rated.

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Dave Gallant (ID: 00000021d940ee90) Voted 1 ★ - Updated 03/15/2023 This was a great extension to use, they have since changed it to just push the paid version. If you are not looking to pay for the extension the free version offers nothing.

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Z Z (ID: 00000014652788e4) Voted 1 ★ - Updated 03/04/2023 This tool used to be great, now it's it's a scam. Doesn't actually scan anything. Instead, wants you to subscribe to a 7-day trial and collect your personal information or subscribe to their pro version to unlock anything remotely useful. "Accessibility is for everyone," right?