Chrome Web Store
126Versions
1Code reviewed

No malware found

In code review (v4.129.1)

Our reviewer read version 4.129.1 — the most recent version we have reviewed — and found no malicious behaviour. The version shown here has not been individually reviewed yet.

What our analysis found

axe DevTools - Web Accessibility Testing, used by 400,000 people, showed no malicious code in Extension Auditor's review. It comes from a trusted publisher and was last updated in September 2026.

Analyst notes

The extension is a legitimate accessibility testing tool by Deque Systems, a reputable publisher. The critical risk flag from the security analysis stems from broad permissions ('debugger', 'tabs', content scripts on <all_urls>) which are necessary for its core functionality of scanning web pages for accessibility issues. The extension sends usage analytics to the publisher's own server ([domain withheld]) and to standard third-party services (Amplitude, Datadog), as disclosed in its privacy policy and CWS listing. All code patterns (e.g., innerHTML for highlighter, XMLHttpRequest for analytics) are consistent with a DevTools extension and do not indicate malicious intent.

axe DevTools - Web Accessibility Testing

axe DevTools - Web Accessibility Testing Chrome extension security report

ID: lhdoppojpmngadmnindnejefpokejbdd

Supported Languages

🇺🇸US English

Extension Info & Metadata

Status
Active
Version
4.138.0
Size
4.83 MB
Rating
3.8/5
Reviews
130
Users
400,000
Type
Extension
Updated
Sep 29, 2026
Category
Accessibility
Price
Free
Featured
Yes
Visibility
Listed
Mature
No
By Google
No
Trusted
Yes
This publisherTrack record
1extension
All still listed
Scanned by Extension Auditor — Low RiskDevelopers: embed this badge to link to this report.

Publisher Contextual Analysis

Trusted
Author
Deque Systems Inc
MX records exist
Yes
Domain exists
Yes
Is disposable
No
Is role-based
No
Mailbox exists
Yes
Website
Visit
Extensions
1
Active
1
Obsolete
0
Listed
1
Unlisted
0
Users
400,000

Screenshots & videos

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Install growth

Item
Type
Severity
Description
debugger
Permission
Critical
This permission grants the extension ability to debug and control other extensions and browser tabs. Rated Critical because it can access and modify other extensions' internal state, inject code, and access sensitive data from any tab.
Contextual Risk Factors
Risk Factor
High
The following context increases the overall risk: • 10% increase: Early script execution enables pre-emptive content manipulation • 10% increase: About:blank access enables potential sandbox escape vectors
tabs
Permission
Medium
This permission enables tab management and monitoring. Rated Medium because it can track open tabs, access tab metadata, and monitor user browsing patterns.
storage
Permission
Medium
This permission allows storing data locally in the browser. Rated Medium because it can persist sensitive user data, track user activities over time, and potentially store malicious payloads.
unlimitedStorage
Permission
Medium
This permission removes storage quota restrictions. Rated Medium because it can store large amounts of user data without limits, potentially impacting browser performance and storing extensive tracking data.
Early Content Script Execution
Risk Factor
Medium
This extension runs content scripts at document_start.
About:blank Access
Risk Factor
Medium
This extension can run content scripts in about:blank pages.

About this extension

Accessibility Checker for Developers, Testers, and Designers in Chrome

Read the publisher’s full description

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.

User reviews

Extension files

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No network indicators were extracted from this version.

Version
Size
Verdict
Findings
Permhash
4.138.0
Latest
4.83 MBNot scanned—
a0196ca8a9878a5b7f68c162f8968264a6e1d38ef2d0b067d101c38a71657176
4.137.0
4.83 MBNot scanned—
a0196ca8a9878a5b7f68c162f8968264a6e1d38ef2d0b067d101c38a71657176
4.136.1
4.83 MBNot scanned—
a0196ca8a9878a5b7f68c162f8968264a6e1d38ef2d0b067d101c38a71657176
4.135.0
4.82 MBNot scanned—
dc75e5d3ce6084b288bae666c09c440c1657455f0eca04f656da97d459af1183
4.134.2
4.82 MBNot scanned—
dc75e5d3ce6084b288bae666c09c440c1657455f0eca04f656da97d459af1183
4.134.1
4.82 MBNot scanned—
dc75e5d3ce6084b288bae666c09c440c1657455f0eca04f656da97d459af1183
4.132.4
4.78 MBNot scanned—
dc75e5d3ce6084b288bae666c09c440c1657455f0eca04f656da97d459af1183
4.133.0
4.80 MBNot scanned—
a0196ca8a9878a5b7f68c162f8968264a6e1d38ef2d0b067d101c38a71657176
4.132.5
4.78 MBNot scanned—
a0196ca8a9878a5b7f68c162f8968264a6e1d38ef2d0b067d101c38a71657176
4.132.2
4.78 MBNot scanned—
a0196ca8a9878a5b7f68c162f8968264a6e1d38ef2d0b067d101c38a71657176
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Code Diff

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