Accessibility Testing Tools

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Chrome DevTools

Chrome DevTools is a set of authoring, debugging, and profiling tools built into Google Chrome.


accessiBe is a fully automated, AI-powered, web accessibility solution for ADA and WCAG compliance.

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BrowserStack is a test platform built for developers and QAs to expand test coverage, scale and optimize testing with cross-browser, real device cloud, accessibility, visual testing, test management, and test observability. BrowserStack states it currently powers over a billion tests…

Chrome DevTools

Chrome DevTools is a set of authoring, debugging, and profiling tools built into Google Chrome.

Crownpeak Digital Accessibility and Quality

Crownpeak Digital Accessibility and Quality is a digital governance and web content management and monitoring solution designed to support excellent customer experience across all digital touchpoints, supporting web accessibility needs, error catching, SEO best practices, brand compliance,…

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The Siteimprove platform offers tools used to optimize digital experiences for quality, accessibility, analytics, and SEO. Sitemprove offers actionable content insights and recommendations in a prioritized list to help teams make the most impact. With three solution packages to choose…


accessiBe is a fully automated, AI-powered, web accessibility solution for ADA and WCAG compliance.

LT Browser

LT Browser allows users to test the mobile view of a website on different screen sizes and resolutions. With over 50+ devices to choose from, LT Browser aims to make mobile website testing easier, and ensure that a website is mobile responsive. Users can create their own custom…


Testlio offers "fused software testing." The approach leverages a proprietary software testing platform, partnerships and integrations with DevOps leaders, and a global services delivery team in 150+ countries.


Monsido's Web Governance Platform helps users manage and optimize their web presence with tools like prioritized errors, WCAG and Section 508 accessibility testing and automation.

UserWay Accessibility Widget

UserWay ensures that websites, apps, and digital documents more readily comply with accessibility regulations, such as WCAG 2.1 AA, WCAG 2.2, EN 301-549, EAA, ADA, and Section 508.

WAVE Web Accessibility Evaluation Tool

WAVE is a suite of evaluation tools that helps authors make their web content more accessible to individuals with disabilities. WAVE can identify many accessibility and Web Content Accessibility Guideline (WCAG) errors, but also facilitates human evaluation of web content. The vendor,…


Equalweb is a web accessibility software testing solution from the company of the same name in Manhattan.


Silktide in Derby aims to give users everything they need to make their websites better, with automated accessibility testing, content optimization, and SEO-oriented digital marketing in one platform.


AudioEye, headquartered in Tucson, creates technology to make digital content more consumable, and more accessible, for more people.


Sitemorse headquartered in London offers the SMIE (Sitemorse Intelligence Engine), which automates website accessibility assessments, in order to ensure content rules and standards are consistently applied to content as well as checking for regulatory infringement. SMIE aims to help…

DYNO Mapper

DYNO Mapper is a web analytics tools suite from the company of the same name in Chicago, that enables users to organize website projects using visual sitemaps, content inventory, content audit, content planning, daily keyword tracking, and website accessibility testing.

UsableNet AQA Testing Platform

UsableNet headquartered in Los Angeles offers the AQA accessibility testing platform. The vendor states that with the AQA Accessibility Management Platform, teams can find, fix, test and report on Accessibility faster and with less overhead.


mabl is a regression test automation tool with test output visualization and performance regression for tracking the perceived speed of web apps and sites, from the company of the same name in Boston.

ARC Provider Package

ARC Provider Package is an enterprise suite built for TPGi’s own audits. Automated scanning does not catch every WCAG issue, the majority can only be found through manual testing. ARC Provider Package is an accessibility test management and logging platform that will allow enterprise-…

PDFix Desktop Pro

PDFix is a solution for any PDF needs, offering advanced PDF editing, PDF conversion, and data extraction. It provides software solutions for PDF accessibility - automating the process to ensure compliance with PDF/UA accessibility standards. Leveraging AI and machine learning, PDFix…

AdScan by AbleDocs

ADScan, from AbleDocs, is an automated tool that scans organizations' internal and external websites and document repositories, and reports on the accessibility of all PDF documents. ADScan checks websites and document repositories monthly and monitors, tests, tracks, and provides…

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PREP is a solution addressing multiple document formats and varied user needs, and can handle inter-format conversions. It features a simplified user interface that makes the experience easier, and accessibility no matter the user's industry. PREP’s auto-tag detection feature instantly…

ARC Toolkit
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ARC Toolkit is an automated accessibility testing tool and free browser plug-in. After opening the ARC Toolkit panel, a tester can hit scan and Toolkit will create a list of WCAG issues and how to potentially solve them at the code level. Toolkit can include or exclude certain WCAG…

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ACHECKS, provided by the Cantan Group headquartered in Toronto, provides actionable WCAG 2 AA reports across a website so users can monitor and report on ADA and AODA compliance.

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Evinced is a technology company specializing in digital accessibility software, helping enterprises make their web and mobile offerings accessible to everyone. Its AI-enabled products can save developer time and reduce risk via proprietary discovery and analysis algorithms that…

Accessibility Resource Center (ARC)

TPGi’s Accessibility Resource Center (ARC) provides organizations with a platform and suite of accessibility tools to support them at each stage of their accessibility journey. ARC helps teams to adopt a continuous accessibility strategy and embed accessibility testing into their…

Learn More About Accessibility Testing Tools

What are Accessibility Testing Tools?

Website accessibility testing tools help organizations ensure their website is accessible and navigable for all users. This is especially critical for users with auditory, visual, physical, speech-related, or cognitive and neurological disabilities. Business websites often have certain barriers in place that, unwittingly, make it difficult for certain users to read, comprehend, navigate, or complete tasks. These tools are also often called accessibility checkers, ADA website checkers, and ADA compliance testing tools.

Accessibility testing tools run scans and monitor websites for things like:

  • Alternative text on images
  • Captions for multimedia content
  • Compatibility with assistive technologies
  • Level of color contrast between different page elements
  • Readability and comprehension of text
  • Missing or misplaced labels within the text

The output of these tests and scans are typically a score, set of metrics, or more detailed teardown of website elements. Web developers, designers, and writers can use this output to assess how ADA and WCAG compliant their website is, and make changes to make it more compliant.

There is a wide range of website accessibility testing tools available, ranging from free browser-based applications to comprehensive digital quality management or governance software like Crownpeak DQM, Siteimprove, Level Access AMP, and Monsido.

Website Compliance Standards

The W3C publishes web accessibility guidelines that organizations and businesses can follow when developing websites and webpages. These standards adhere to four core principles when evaluating how ADA or WCAG compliant a website is:

  • Is it perceivable?
  • Is it operable?
  • Is it understandable?
  • Is it robust?

Accessibility Testing Tool Features

Most accessibility testing tools allow users to run a test or scan of a specific webpage. More comprehensive tools will conduct automated scanning against the WCAG 2.1 guidelines and recommend website changes.

Free and Open Source Accessibility Testing Tools

There are several free and open-source web accessibility testing tools available. Most allow users to enter the URL of a specific page for testing. While the output of these tests or scans won’t be as thorough as the results for a paid test or audit, they can be a great starting place when updating a website to be more accessible. For a list of some popular free and open source tools, see our FAQ.

For individual users, website contributors, and freelancers—free or open-source accessibility tools are a good choice. But for businesses that want to routinely check their website for accessibility standards compliance, a paid solution is likely more appropriate.

Accessibility Testing Tools Comparison

Before deciding to either use a free or paid website accessibility tool, consider these key points:

  1. Scope of the tool: Are you looking for website accessibility or digital governance software to use across your entire business? Or are you in the market for a simpler accessibility tool to check one or a few webpages for WCAG compliance? A paid web accessibility tool is better suited for businesses looking for more comprehensive software to conduct thorough website scans and audits. Free tools are great for individual users or more sporadic testing needs.
  2. Automated tests vs. manual audits: Using software tools to do automated web accessibility testing can be a great first step to take. However, manual audits often go deeper and can provide more recommendations for how to improve your website’s ADA and WCAG compliance. Certain paid tools also provide robust recommendations for improving website compliance, while most paid tools don’t provide recommendations.

Pricing Information

Along with free and paid website accessibility testing tools, there are multiple paid accessibility management software options.

Most web accessibility management software vendors do provide publicly available pricing. Interested buyers should reach out to these vendors directly for a quote.

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Frequently Asked Questions

What do web accessibility testing tools do?

Website accessibility tools allow users to run tests or scans of their websites to gauge how ADA and WCAG compliant certain webpages are. Websites that have a low accessibility score or ranking are typically harder for people with either permanent or temporary disabilities to use.

The goal of conducting web accessibility testing is to help businesses identify how compliant their websites are and make improvements so they can be readable, navigable, and comprehensible by all users.

Why use accessibility testing software?

Using accessibility testing tools can help businesses and organizations ensure their websites are user-friendly for all types of users. They also help businesses maintain website compliance with current standards like the ADA, Section 508, and Web Content Accessibility Guidelines (WCAG) 2.1. This can help prevent future lawsuits from being brought against a company, due to a lack of website accessibility.

What is ADA compliance for websites?

The Americans with Disabilities Act (ADA) was passed in 1990 and is meant to guarantee equal access to public and community life in the U.S. for people with disabilities. However, this law was passed before the age of the internet and does not include any specific provisions or instructions for how to apply the law to publicly available websites and webpages.

In the absence of explicit language in the ADA around what website accessibility standards are, the Department of Justice (DOJ) has recommended that websites adopt the (WCAG) 2.1 standards in order to be considered ADA compliant.

How much do website accessibility testing tools cost?

There are multiple free and open-source web accessibility tools available. A few examples of popular tools include:

There are also more comprehensive paid accessibility management software and digital governance solutions. The vendors that provide these products rarely have pricing information available publicly on their websites. If you’re interested in purchasing a larger web accessibility management suite, contact these vendors directly for pricing quotes.