Understanding Axe Accessibility Testing Tools

Harshit Chhipa

Harshit Chhipa

Mar 11, 2026Testing Tools
Understanding Axe Accessibility Testing Tools

Introduction

Have you ever browsed a website and realized that something as simple as reading the text, navigating with a keyboard, or understanding images becomes nearly impossible for millions of users with disabilities? That’s exactly why accessibility testing is no longer optional—it’s essential.

In today’s digital world, every website and application must be accessible to all users, regardless of ability. This is where Axe, one of the most powerful and trusted accessibility testing tools, comes in. Axe helps testers, developers, and organizations identify accessibility barriers quickly, accurately, and efficiently.

In this comprehensive guide, you’ll learn:

  • What Axe is and how it works
  • Why accessibility testing matters
  • Step-by-step instructions to perform accessibility testing with Axe
  • Best practices for WCAG compliance
  • Tools, examples, insights, comparisons, and real-world tips
  • FAQs, summary, metadata, and references

Axe is developed by Deque Systems, a leader in digital accessibility solutions.

Key Axe Components

1. Axe DevTools Browser Extension

Allows instant accessibility scanning inside Chrome or Firefox.

2. Axe-Core

A JavaScript library used by automation frameworks like:

  • Selenium
  • Cypress
  • Playwright
  • WebdriverIO

3. Axe DevTools Pro

Paid version with more robust reporting.

4. Axe Linter

Accessibility linting inside code editors.

5. Axe Monitor

Enterprise-level accessibility monitoring.

Step 1: Install the Browser Extension

Available on Chrome & Firefox.

Steps:

  1. Open Web Store
  2. Search Axe DevTools
  3. Click Add to Chrome/Firefox
  4. Open DevTools → Find Axe Tab

Step 3: Run an Accessibility Scan

  1. Open webpage
  2. Open Axe DevTools tab
  3. Click Scan All of My Page
  4. Wait for results

Step 5: Fix Issues and Re-Test

The remediation cycle:

  1. Detect
  2. Fix
  3. Re-test
  4. Validate

1. Missing Alt Text

Images without alt tags.

2. Low Color Contrast

Hard-to-read text.

3. Improper Heading Structure

Skipping heading levels.

4. Keyboard Navigation Issues

Elements not focusable.

5. Missing ARIA Labels

For screen readers.

6. Form Label Problems

Fields without clear labels.

7. Non-Descriptive Links

“Click here” has no meaning for assistive tech.

Advantages of Axe

  • Free & open-source
  • Accurate WCAG validation
  • CI/CD ready
  • Developer-friendly
  • Scalable for enterprise

Conclusion

Accessibility testing is a responsibility, not just a requirement. Axe empowers teams to build inclusive, user-friendly, and legally compliant digital experiences. By integrating Axe into your workflow, accessibility becomes natural—not an afterthought.

Start using Axe now to create experiences everyone can access.

References

https://en.wikipedia.org/wiki/Web_accessibility
https://en.wikipedia.org/wiki/Software_testing
https://en.wikipedia.org/wiki/Screen_reader
https://en.wikipedia.org/wiki/Assistive_technology
https://en.wikipedia.org/wiki/WCAG