List of Powerful Web Accessibility Testing Tools for Websites

In the current era of technological advancements, a wide range of web accessibility testing tools has emerged, each offering distinct features and capabilities. This Viindoo's article aims to highlight the significance of employing such tools for web accessibility testing and presents various providers that cater to diverse requirements.

What Are Web Accessibility Testing Tools?

Web accessibility testing tools are software programs designed to help website owners and developers test their sites for compliance with accessibility guidelines. These tools can identify potential barriers to access, such as missing alt text on images or improperly labeled form fields, and provide suggestions for resolving these issues. Some of the most common types of web accessibility testing tools include:

  • Web accessibility checkers
  • Screen readers
  • Color contrast analyzers
  • Keyboard navigation simulators
  • Automated testing tools

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Why Are Web Accessibility Testing Tools Important?

Web accessibility testing tools are important for several reasons:

  • Compliance with legal requirements: Many countries have laws that require websites to be accessible to people with disabilities. Failure to comply with these laws can result in legal action against website owners.
  • Improved user experience: Accessible websites are easier to use for everyone, including users with disabilities. This can lead to increased engagement, improved customer satisfaction, and a greater likelihood of repeat visits.
  • Increased reach: By making their websites accessible, website owners can reach a larger audience. People with disabilities represent a significant portion of the global population, and they often rely on the internet to access information and services.
  • Better search engine optimization (SEO): Search engines like Google prioritize websites that are accessible and easy to use. By improving accessibility, website owners can improve their rankings in search results.

Important of Web Accessibility Testing Tools

Important of Web Accessibility Testing Tools

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Who Needs Web Accessibility Testing Tools?

Web accessibility testing tools are useful for anyone involved in the design, development, or maintenance of websites. This includes:

  • Web designers
  • Web developers
  • Content creators
  • Project managers
  • Quality assurance testers
  • Website owners

Top 7 Web Accessibility Testing Tools

Here are seven popular web accessibility testing tools along with a brief description and their key features:

Axe by Deque Systems

Axe is a powerful and widely-used accessibility testing tool. It integrates seamlessly with various development environments and browsers, providing developers and testers with real-time feedback on accessibility issues.

Top 7 Web Accessibility Testing Tools

Axe by Deque Systems

Key Features:

  • Automated testing for WCAG 2.1 (Web Content Accessibility Guidelines) compliance.
  • Integration with popular browsers, including Chrome, Firefox, and Internet Explorer.
  • Integration with development environments like Chrome DevTools and Visual Studio Code.
  • Detailed issue reports with recommendations for fixing accessibility problems.

Web Accessibility Evaluation Tool (WAVE)

WAVE is a web accessibility evaluation tool that offers both online and browser extensions. It helps identify accessibility errors on web pages and provides visual indicators and detailed reports.

Key Features:

  • In-depth evaluation of web pages for accessibility issues.
  • Real-time feedback with visual indicators for errors, alerts, and features requiring attention.
  • Detailed reports with WCAG 2.1 guidelines-based analysis.
  • Accessibility validation for single pages or full website scanning.

aXe-core by Deque Systems

aXe-core is an open-source JavaScript library for automated web accessibility testing. It can be integrated into testing frameworks and used for continuous integration and automated accessibility testing.

Key Features:

  • JavaScript library for programmatic accessibility testing.
  • Integration with popular testing frameworks like Selenium and Jest.
  • Detailed reports with specific issue descriptions, recommendations, and code examples.
  • Supports multiple programming languages and platforms.


Pa11y is an automated accessibility testing tool that can be used via a command-line interface or integrated into a continuous integration pipeline. It aims to make accessibility testing easy and accessible to developers.

Top 7 Web Accessibility Testing Tools

Pa11y is an automated accessibility testing tool

Key Features:

  • Command-line interface for easy integration into development workflows.
  • Supports WCAG 2.0 and Section 508 accessibility standards.
  • Provides detailed HTML reports and JSON results for issue tracking.
  • Works on Windows, macOS, and Linux platforms.


Tenon is a cloud-based web accessibility testing tool that offers both automated and manual testing options. It provides comprehensive reports, integrations, and API access to support the accessibility testing process.

Key Features:

  • Automated accessibility testing for WCAG 2.1 compliance.
  • Manual testing capabilities for more complex accessibility issues.
  • Detailed reports with issue descriptions, recommendations, and severity levels.
  • API access for integration into development workflows and custom reporting.

Siteimprove Accessibility

Siteimprove Accessibility is a comprehensive web accessibility testing and monitoring platform. It combines automated scanning with manual testing to identify and prioritize accessibility issues across websites.

Key Features:

  • Automated scanning for accessibility issues, including WCAG 2.1 compliance.
  • Manual testing capabilities for complex or dynamic websites.
  • Accessibility issue prioritization based on impact and severity.
  • Integration with content management systems (CMS) and issue tracking systems.

Lighthouse by Google Developers

Lighthouse is an open-source tool developed by Google. While primarily focused on performance and best practices, it also includes accessibility testing features that can help identify basic accessibility issues.

Top 7 Web Accessibility Testing Tools

Lighthouse is an open-source tool developed by Google

Key Features:

  • Accessibility testing integrated into the Chrome DevTools and Chrome browser.
  • Automated accessibility audits based on WCAG 2.1 guidelines.
  • Recommendations for improving accessibility issues.
  • Integration with the Chrome extension and command-line interface.

These tools offer different approaches to web accessibility testing and cater to various user needs, from automated scanning to manual testing.

FAQs about Web Accessibility Testing Tools

A web accessibility checker is a software tool that helps website owners and developers test their sites for compliance with accessibility guidelines.

Consider your specific needs, budget, and level of expertise when choosing a web accessibility testing tool. Read reviews and testimonials from other users to get an idea of how effective the tool is.

No, web accessibility testing tools cannot replace the insights and feedback provided by individuals with disabilities. Automated testing should be combined with manual testing to ensure maximum accessibility.

Yes, alternative approaches include manual testing, accessibility audits, and user testing.

 Why are web accessibility testing tools important?

Web accessibility testing tools help ensure that websites are accessible to all users, including those with disabilities. They improve user experience, increase reach, and comply with legal requirements.

Web accessibility testing tools are essential for ensuring that websites are accessible to all users, including those with disabilities. Choosing the right tool depends on several factors, including budget, expertise, and specific needs. While web accessibility testing tools are not a complete solution, they should be a part of any comprehensive accessibility strategy. Viindoo trusts that the aforementioned article has provided you with a wealth of valuable information.

List of Powerful Web Accessibility Testing Tools for Websites
Viindoo Technology Joint Stock Company, Yen Nguyen July 20, 2023