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Best Accessibility Testing Tools and Software for Website Compliance

30 Best Web Accessibility Testing Tools and Software in 2025

Ensuring web accessibility is not just a legal requirement but also a moral obligation to create an inclusive online experience for all users, including those with disabilities. To achieve this, developers and website owners must regularly test their websites for compliance with accessibility standards like WCAG (Web Content Accessibility Guidelines), ADA (Americans with Disabilities Act), and Section 508.

In this blog, we’ll explore a curated list of free and paid accessibility testing tools and software available in 2025. Whether you’re a small business owner, developer, or content creator, these tools will empower you to make your website more accessible and user-friendly. For organizations working with a reliable custom software application development company, accessibility testing is an essential step toward creating inclusive digital experiences.

30 Best Web Accessibility Testing Tools and Software in 2025

Free Web Accessibility Testing Tools & Software

These tools provide essential accessibility testing features at no cost, making them ideal for small businesses, developers, and content creators.

WAVE (Web Accessibility Evaluation Tool)

  • Developed by WebAIM, WAVE is a browser extension that visually highlights accessibility issues on a webpage.
  • Detects missing alt text, structural issues, contrast errors, and more.
  • Try it here

Axe by Deque Systems

  • Open-source tool that integrates with Chrome and Firefox for in-browser testing.
  • Provides detailed issue reports and recommendations.
  • Try it here

Google Lighthouse

  • Built into Chrome DevTools, Lighthouse audits web accessibility alongside performance, SEO, and best practices.
  • Generates a detailed report with actionable insights.
  • Try it here

Siteimprove Accessibility Checker

  • A free browser extension that scans pages for accessibility issues.
  • Offers real-time feedback and WCAG compliance insights.
  • Try it here

Pa11y

  • Open-source accessibility testing tool that can be run from the command line.
  • Provides automated reports for accessibility evaluation.
  • Try it here

Color Contrast Analyzer by TPGi

  • Helps designers and developers ensure text is readable against different backgrounds.
  • Tests color contrast according to WCAG standards.
  • Try it here

Accessibility Insights for Web (Microsoft)

  • Open-source extension that runs FastPass (quick tests) and Assessment (detailed tests).
  • Provides guided instructions for fixing issues.
  • Try it here

AChecker

  • Online accessibility checker that evaluates web pages against WCAG, Section 508, and other guidelines.
  • Highlights known, likely, and potential issues.
  • Try it here

Cynthia Says

  • Web-based tool for testing accessibility compliance.
  • Focuses on WCAG 2.0 and Section 508 guidelines.
  • Try it here

Tenon.io (Limited Free Usage)

  • API-driven accessibility testing tool.
  • Offers a free plan with basic testing features.
  • Try it here

ANDI (Accessible Name & Description Inspector)

  • A free tool that helps developers test web accessibility elements in real-time.
  • Highlights missing labels and other usability issues.
  • Try it here

NVDA (NonVisual Desktop Access)

  • A free screen reader for Windows that helps test website accessibility.
  • Useful for simulating the experience of visually impaired users.
  • Try it here

JAWS (Job Access With Speech) – Free Trial

  • A widely used screen reader for accessibility testing.
  • Provides a free trial with robust testing features.
  • Try it here

Screen Reader Testing Tool by Fangs

  • A Firefox extension that emulates how screen readers interpret a page.
  • Helps identify potential navigation issues.
  • Try it here

Contrast Finder

  • Helps designers find color combinations that meet WCAG contrast requirements.
  • Great for improving readability and usability.
  • Try it here

HTML_CodeSniffer

  • This script can be embedded in your web pages or used as a bookmarklet to check for accessibility issues in real-time.
  • Supports various accessibility guidelines.
  • Try it here

Accessibility Developer Tools (Chrome Extension)

  • This Chrome extension provides a suite of tools for inspecting and debugging accessibility issues directly within the browser’s developer tools.
  • Try it here

Koa11y

  • Desktop app for running accessibility tests on web pages.
  • Provides a simple interface for checking WCAG compliance.
  • Try it here

Tota11y

  • Visualization tool for accessibility issues.
  • Helps developers understand and fix accessibility problems.
  • Try it here

ARC Toolkit

  • Browser extension for accessibility testing.
  • Provides detailed insights into accessibility issues.
  • Try it here

Paid Web Accessibility Testing Tools & Software

For large-scale accessibility audits and enterprise solutions, these premium tools offer advanced testing capabilities, often including automated testing, detailed reporting, and integration with development workflows.

Siteimprove (Premium Version)

  • Comprehensive accessibility, SEO, and analytics suite.
  • AI-driven suggestions and monitoring.
  • Learn more

Deque Axe DevTools

  • Advanced version of the free Axe tool with in-depth testing features.
  • Includes integrations with DevOps workflows.
  • Learn more

Tenon (Premium Version)

  • API-based accessibility testing for large-scale compliance needs.
  • Offers team collaboration features.
  • Learn more

UserWay

  • AI-powered accessibility widget that improves site compliance.
  • Provides real-time scanning and automated fixes.
  • Learn more

AudioEye

  • Comprehensive accessibility solution with automated testing and remediation.
  • Includes real-time website monitoring.
  • Learn more

Level Access

  • Provides a suite of accessibility solutions including automated testing, manual audits, training, and remediation support.
  • Learn more

TPGi ARC Platform

  • Offers a comprehensive platform for accessibility testing, auditing, and reporting, supporting various standards and guidelines.
  • Learn more

Crownpeak

  • Integrates accessibility testing into its Digital Quality Management platform, allowing for continuous monitoring and improvement.
  • Learn more

Silktide

  • Platform for testing accessibility, SEO, and usability.
  • Provides detailed reports and actionable insights.
  • Learn more

EqualWeb

  • Accessibility testing and remediation tool.
  • Offers automated fixes and compliance monitoring.
  • Learn more

Understanding WCAG Conformance Levels

WCAG (Web Content Accessibility Guidelines) defines three levels of conformance: A, AA, and AAA.

  • Level A: The most basic level of accessibility. Meeting this level ensures that the most fundamental accessibility requirements are met.
  • Level AA: This is the generally accepted target level for most websites. It addresses a wider range of accessibility issues and is often required for legal compliance.
  • Level AAA: The highest level of accessibility. Meeting this level is challenging and may not be feasible for all types of content, but it aims to make content accessible to the widest possible range of users.

Most organizations aim for WCAG 2.1 Level AA conformance.

Best Practices for Website Accessibility Testing

  1. Test Early and Often: Integrate accessibility testing into your development process from the beginning rather than waiting until the end.
  2. Use a Combination of Tools: Don’t rely on a single tool. Use a variety of automated tools, manual testing techniques, and assistive technologies like screen readers.
  3. Involve Users with Disabilities: Conduct user testing with people who have disabilities to get real-world feedback on the accessibility of your website.
  4. Prioritize Issues: Focus on fixing the most critical accessibility issues first, such as those that prevent users from accessing essential content or functionality.
  5. Keep Your Website Up-to-Date: Accessibility is an ongoing process. Regularly test your website and update it as needed to maintain compliance.

Conclusion

Web accessibility testing is essential for creating an inclusive digital experience. Free accessibility testing tools like WAVE, Axe, and Lighthouse provide basic accessibility insights, while paid solutions offer advanced compliance monitoring and remediation. By leveraging these tools and following best practices, businesses and developers can ensure their websites are usable by everyone, including individuals with disabilities.

Make accessibility a priority and enhance your website’s reach today!