12 Best Accessibility Testing Tools in 2026 (WCAG, ADA & AI-Powered)

In 2025, WebAIM evaluated the homepages of the top 1,000,000 websites, out of which they found 50,960,288 distinct accessibility errors, with an average of 51 errors per page.  And these errors are highly likely to indicate WCAG 2.2 Level A/AA conformance failures as per the report.

These numbers show that even today, teams are shipping apps and websites that are creating barriers for users with disabilities.

Problems such as missing alt text, poor color contrast, or inaccessible forms can make it hard for your users to access content and complete transactions.

Moreover, these issues can lead to serious potential legal risks under regulations like the Section 508, the European Accessibility Act (EAA), and WCAG guidelines.

To help you address these roadblocks, we’ve reviewed and compiled a list of the best accessibility testing tools, along with their features, pros, cons, and pricing.

Simplify accessibility testing and uncover WCAG violations accurately with TestGrid. Request a trial.

What Are Accessibility Testing Tools?

Accessibility testing tools are software systems which help you assess and identify factors that may prevent people with disabilities (visual, auditory, motor, and cognitive impairments) from accessing your websites, mobile apps, desktop apps, or any digital documents.

The main aim of these tools is to ensure that digital products are usable by individuals who depend on assistive technologies like screen readers, screen magnifiers, voice recognition software, switch devices, and keyboard-only navigation.

Tools for accessibility testing allow you to spot issues like:

• Missing alternative text
• Insufficient color contrast
• Inaccessible form fields
• Improper heading structures
• ARIA implementation errors
• Keyboard navigation problems

These tools are extremely important for development and QA teams because they help in complying with regulations and standards like Web Content Accessibility Guidelines (WCAG), Section 508 in the United States, and the ADA.

Difference between manual and automated accessibility testing

Manual accessibility testing	Automated accessibility testing
Involves human evaluation of accessibility using assistive technologies, keyboard navigation, and usability assessment techniques	Uses software tools to automatically scan websites, apps, or documents and detect accessibility issues
Helps you evaluate real-world accessibility and user experience for people with disabilities	Lets you quickly identify machine-detectable accessibility violations at scale
Ideal for finding screen reader usability, keyboard navigation experience, logical reading order, focus management, error messaging, content clarity, and cognitive accessibility issues	Best at detecting missing alt text, color contrast failures, ARIA errors, missing form labels, heading structure issues, duplicate IDs, and keyboard focus problems
Useful for final accessibility audits, usability testing, and assistive technology validation	Allows continuous checks during development and regression testing

TL;DR

• TestGrid – AI-powered testing platform that incorporates accessibility validation within broader web, mobile, and cross-browser testing workflows
• Axe DevTools – Browser-based accessibility testing suite that combines automated scans with guided manual testing workflows
• WAVE (WebAIM) – Visual accessibility evaluation tool that overlays accessibility feedback directly onto web pages
• Microsoft Accessibility Insights – Accessibility auditing platform which pairs automated checks with step-by-step assessment guidance
• Google Lighthouse – Chrome-powered website auditing tool which evaluates accessibility alongside performance, SEO, and web best practices
• Siteimprove – Enterprise digital governance platform that continuously monitors accessibility, content quality, SEO, and compliance
• Tenon (Level Access) – Accessibility testing API designed for integrating WCAG validation into custom development and QA processes
• Monsido (Acquia Web Governance) – Website governance tool which offers accessibility monitoring, content quality assessment, and compliance management.
• NVDA –  Free open-source screen reader used to evaluate how websites and applications behave for visually impaired users
• JAWS – Commercial screen reader widely used in enterprise and government environments for accessibility validation and assistive technology testing
• Accessibility Scanner – Android accessibility auditing tool which analyzes live app screens for usability and compliance issues
• Accessibility Inspector – Apple’s developer utility for inspecting accessibility properties, hierarchies, and user interface behaviors on iOS and macOS
• WebAIM Contrast Checker – WCAG color contrast calculator for verifying the readability of text and interface elements
• Colour Contrast Analyser (CCA) – Desktop-based contrast testing tool that measures color accessibility across websites, apps, and graphical interfaces
• Pa11y – Open-source command-line accessibility testing tool built for automation, continuous testing, and CI/CD integration
• Axe-core – Accessibility testing engine that powers automated WCAG checks across development, testing, and browser environments
• Tota11y – In-browser accessibility visualization toolkit which highlights common accessibility issues through interactive page annotations

Automated Accessibility Testing Tools (Reviewed & Compared)

Automated accessibility testing tools allow you to scan websites, apps, and digital content to detect WCAG and ADA compliance issues like color contrast failures, form errors, and ARIA violations, and help teams conduct continuous testing and scale accessibility efforts across large-scale environments.

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1. Axe DevTools – Developer-Focused Accessibility Testing

Axe DevTools is one of those accessibility testing tools that are easy to use and fit right into your SDLC. You can test any app interactively, without access to the source code. Or test while coding to catch issues early within your IDE. Axe compels you to shift left with accessibility, catch bugs while they’re the cheapest to fix, and deliver ROI.

Features

• Enforce policies, de-duplicate issues, track changes, and understand whether a code change made your product more or less accessible
• Leverage its ML and computer vision models to update training models continuously
• Test in your pipeline with automated tests using UI testing frameworks
• Test as you type with linting for React Native

Pros

• Accurate accessibility issue detection with low false positives
• Actionable guidance like detailed explanations, code-level recommendations, and screenshots for developers

Cons

• Limited flexibility for manual testing with assistive technologies and human evaluation
• Some of the advanced features like guided testing, may need paid subscriptions

Pricing

• Free: $0
• Pro: $60 per month/user
• Enterprise: Custom pricing is available on request

Best for

• Developers and QA engineers who want to integrate automated accessibility scans and guided testing into their testing workflows via CI/CD integrations

Automation support

• Supports automated accessibility testing across web and mobile apps, with integrations for CI/CD pipelines, automated test frameworks, IDEs, browsers, and build workflows

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2. WAVE – Visual Accessibility Evaluation Tool

WAVE is a web accessibility tool comprising a suite of features that help you make your web content more accessible to individuals with disabilities. To get started with it, fill out the form at https://wave.webaim.org/, enter the web page address you want to test, and submit it.

WAVE will summarize all contrast errors, misaligned structure elements, and poor ARIA components. You can also run tests to check compliance issues found in Section 508 and WCAG 2.2 guidelines.

Features

• Incorporate functionality for turning off page CSS styles and simplify the page presentation
• Apply Chrome, Firefox, and Edge browser extensions for checking local or dynamic web pages
• Evaluate intranet, private, dynamically-generated, password-protected, or scripted web content
• Analyze your content after CSS and JavaScript have been applied to it for a more accurate presentation of actual page accessibility

Pros

• Helps you understand where issues occur through visual overlays, which display errors directly on the page
• Low learning curve and can be accessed easily via the web interface or browser extension

Cons

• Limited support for regression checks
• Evaluations work well for smaller sites, but can get time-consuming when assessing large websites

Pricing

• One-Time Scan (up to 20,000 pages): $500
• Additional Pages (per 20,000 pages): +$100
• Large Sites (over 100,000 pages): Custom pricing is available on request

Best for

• Content authors, designers, and accessibility reviewers who need visual, page-level feedback on accessibility issues

Automation support

• Offers automated accessibility testing via the WAVE API for custom workflow integration and programmatic accessibility checks

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3. Microsoft Accessibility Insights – Open-Source Accessibility Testing Tool

Accessibility Insights is a browser extension for Chrome and the new Microsoft Edge, designed to test the accessibility of web pages and web applications. Its browser extension runs on Windows, macOS, and Linux computers.

You can verify UI automation properties using “Live Inspect.” Investigate contrast ratios using the “Color Contrast Analyzer” option. Find and fix accessibility issues in web pages and sites. Accessibility Insights is open-source on GitHub, so there’s a vast community to find help.

Features

• Assess your websites for WCAG 2.1 AA coverage
• Address the most common accessibility errors in under five minutes by running FastPass
• Quickly spot accessibility errors with visualizations and fix them with simple guidance
• Test your Windows app with trusted Windows experiences, such as Inspect and Color Contrast Analyzer, in a single tool

Pros

• Step-by-step assessment and FastPass workflows to verify accessibility issues
• You get visual helpers, code examples, and fix recommendations to seamlessly resolve issues

Cons

• May have limited scope for assessing screen reader experiences, as they need human judgment
• Assisted checks might take significantly longer than running simple automated scans

Pricing

• It’s free as it’s an open-source tool

Best for

• Development teams who are looking for a combination of automated checks and guided accessibility assessment

Automation support

• Provides automated accessibility testing through FastPass; CI/CD integration is possible through axe-core-based automated testing frameworks

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4. Google Lighthouse – Accessibility Audits for Web Performance

Lighthouse is a web accessibility testing tool that can be integrated into Chrome DevTools. It assesses page performance, accessibility, and SEO. You can run it on any web page, public or requiring authentication.

Give Lighthouse a URL to audit, and it will run a series of audits against the page. It will then produce a report on how well the page performed.

Features

• Use the failed audits as indicators for how to improve the page
• Run Lighthouse in Chrome DevTools, from the command line, or as a Node module
• Generate detailed reports highlighting strengths and failed audits for improvement
• Prevent performance regressions using Lighthouse CI in continuous integration workflows

Pros

• Free accessibility testing readily available within Chrome
• Allows you to audit performance, SEO, best practices, and Progressive Web Apps (PWA)

Cons

• Some reviewers state that despite high accessibility score, there may still remain some accessibility issues
• Need manual involvement for assessing screen-reader experience and workflow usability

Pricing

• It’s free as it’s an open-source tool

Best for

• Front-end developers that want quick accessibility audits alongside checks for performance and SEO best practices

Automation support

Automated accessibility testing through Lighthouse audits can be run from Chrome DevTools, the command line, or automated workflows; supports CI/CD integration

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Enterprise Accessibility Testing and Monitoring Platforms

Enterprise accessibility platforms enable organizations to monitor, manage, and improve accessibility across large websites and apps with features like centralized dashboards, compliance reporting, workflow management, and governance controls.

5. TestGrid

TestGrid is an AI-powered enterprise QA platform that helps you test the accessibility of your apps and websites across the Real Device Cloud. The tool has built-in accessibility testing features that let you directly evaluate your website’s compliance with WCAG standards.

You don’t need to switch tools or run separate audits. If you’re already inside a TestGrid browser session, you can run accessibility tests by clicking the “Accessibility Testing” button in the interface. It’s that simple.

TestGrid’s accessibility testing tool is built around WCAG 2.2 Level A and AA. It captures metrics for each page you test and maps them to WCAG guidelines, helping you identify where your website may fall short.

You can also organize results and group-related tests in your dashboard and reuse the exact session details if testing a complete user journey across multiple pages. Moreover, the test results are broken down page by page, with each report displaying issues by severity:

• A short description of each issue
• A help section with recommendations for fixing it
• A code-level HTML snippet to pinpoint where the issue occurs
• The WCAG guideline references so that you can understand the rule behind each finding

Key features

• Automatically authenticate ARIA roles and relationships with TestGrid so users who rely on screen readers aren’t left behind when interacting with your website or web app
• From QA engineers to product managers, non-technical teams can run, review, and act on accessibility tests without writing a single line of code
• Catch missing alt attributes on images and icons, text with insufficient contrast, and dynamic elements that lack clear focus indicators
• Sort and filter issues, share the whole session with a link, or raise JIRA tickets directly from within TestGrid; make collaboration a breeze
• See how fast pages load, transition, and interact with elements like modals or dropdowns on slow connections
• Incorporate integration testing into every commit and deployment without disrupting your CI/CD workflow

Pros

• Low code/no-code testing helps teams quickly build and run accessibility tests
• Offers a wide range and latest versions of real devices and browsers so you can test your apps and sites on
• Offers an intuitive interface and a simple onboarding process

Cons

• Some advanced AI features may need some training, however extensive documentation and support are readily available

Pricing

• CoTester Starter Package: Starts at $199 per seat/month (minimum 4 seats; includes 4 devices/browsers and 5,000 tokens)
• CoTester Growth Package: Custom pricing (includes all Starter features + marketplace integrations)
• Enterprise Test Infra (On-Prem / Hosted): Custom pricing (dedicated test lab for segregated enterprise teams)

Best for

• QA teams, test automation engineers, and enterprises who are looking to combine accessibility, functional, mobile, and cross-browser tests within a unified workflow

Automation support

• Offers CI/CD integrations with tools like GitHub Actions, Azure DevOps, and Jenkins; you can embed automated accessibility scans into your development workflows seamlessly

7. Tenon

Tenon is an accessibility testing tool which was acquired by Level Access in 2021. It allows you to understand your legal obligations according to relevant accessibility laws, review your systems to address any pending legal action, and shape your strategy for ongoing compliance.

ADA, WCAG, the European Accessibility Act, Section 504 and 508, the Unruh Act, AODA, EN 301 549, and NY Human Rights Laws are all the different digital accessibility laws and standards the Level Access Platform covers.

Key features

• Provide proof of your digital product’s accessibility to unlock sales opportunities by requesting a custom Voluntary Product Accessibility Template (VPAT®)
• Define goals, set policies, and spread accessibility ownership across your organization with expert support and advanced monitoring and reporting tools
• Create inclusive, legally compliant retail experiences that win new customers and keep existing customers coming back
• Access detailed insight into the accessibility health of individual web pages or entire digital portfolios

Pros

• Helps your teams identify, track, prioritize, and remediate accessibility issues across websites and digital products from a centralized dashboard
• The platform’s filtering capabilities, screenshots, and prioritization features allow you to understand problems better

Cons

• May involve a steep learning curve
• The clicks and navigation can at times feel unintuitive

Pricing

• Custom pricing on request

Best for

• Enterprises which have mature accessibility programs and need comprehensive accessibility audits and compliance management

Automation support

• Supports automated accessibility testing, CI/CD integrations, and scheduled or continuous scanning

8. Monsido

Monsido, rebranded as Acquia Web Governance, is an accessibility testing platform which is helping web, digital, and marketing teams actively find and fix content issues and errors and deliver inclusive and compliant web experiences. The tool allows you to comply with WCAG standards as well as your local regulations, and also enables you to avoid basic SEO issues that may negatively impact your search rankings.

Key features

• Improve your web experiences with automated scans, prioritization tools, and bulk fix options
• Review issues as you browse in real time with the Browser Extension
• Set up website content and style guidelines to ensure brand compliance and detect outdated content
• Test performance on key pages and ensure that your website lives up to Google Core Web Vital standards

Pros

• You can monitor broken links, content quality, and SEO issues from one unified platform
• Comes with centralized reporting and strong governance controls

Cons

• The subscription plans may feel expensive for smaller teams
• Setting up the platform and integrations can be time-consuming

Pricing

• Standard
• Professional
• Enterprise

All the plans come with customized pricing.

Best for

• Digital teams who are responsible for maintaining accessibility, content quality, and compliance across public-facing websites

Automation support

• Enables automated accessibility testing with scheduled site-wide scans and continuous monitoring

Manual Accessibility Testing Tools

Manual accessibility testing tools are important so teams can assess accessibility problems that automated scanners cannot detect. These tools generally support features like screen reader testing, keyboard navigation checks, focus management validation, and usability assessments.

9. NVDA

NVDA (NonVisual Desktop Access) is basically a screen reader, which is usually preferred by testers and developers for manual accessibility testing. The tool lets developers, QA teams, and accessibility professionals evaluate how websites and apps are experienced by users who depend on assistive technologies. You can check screen reader compatibility, keyboard accessibility, content structure, and overall accessibility compliance seamlessly.

Key features

• Verify how your web and app content is announced to users through speech and Braille output
• Validate your accessibility requirements including keyboard, mouse, and touchscreen interactions
• Evaluate content accessibility, text formatting details, spelling errors, and document structure information announcements
• Test multilingual apps as the tool supports over 50 languages

Pros

• You can deploy NVDA across teams without any licensing costs
• Helps you identify genuine WCAG and semantic markup issues

Cons

• Doesn’t offer you support for macOS and Linux environments
• Limited testing flexibility for commercial screen readers

Pricing

• Free, as it’s an open-source tool

Best for

• Accessibility testers and developers who want to manually validate real-world screen reader experiences on Windows

Automation support

• This is primarily a manual accessibility testing tool and does not provide automated accessibility scanning

10. JAWS

JAWS is a screen reader by Vispero which helps teams deliver reliable, secure, and high-performing digital experiences. The tool provides you access to apps, browsers, and devices, and is designed specifically for speed, efficiency, and productivity. Plus, it has compliance built-in, so you can ensure you meet accessibility standards. JAWS works with major browsers, Office suites, collaboration tools, and LMS platforms.

Key features

• Quickly understand and move through complex pages and apps with intelligent exploration tools to find accessibility issues
• Connect confidently with a wide range of Braille displays and deliver precise and responsive Braille inputs and outputs
• Stay compatible with OS and browser changes through subscription updates
• Get task-based guidance and application help through Vispero Companion

Pros

• The platform lets you run accessibility checks for apps and websites in enterprise, government, and educational environments
• You get extensive customization options, including scripting support

Cons

• The paid pricing plans can be expensive for small organizations or individual users
• Some users report that commands, shortcuts, and customization features that are offered by JAWS might be hard to use without proper training

Pricing

• Custom pricing on request

Best for

• Accessibility auditors and enterprise environments wanting to test commercial screen reader experiences

Automation support

• JAWS doesn’t provide automated accessibility testing or scheduled accessibility scans

Mobile Accessibility Testing Tools (Android and iOS)

Mobile accessibility testing tools are designed to check if Android and iOS apps are usable for people with disabilities. They allow you to find mobile accessibility issues related to touch targets, screen readers, gestures, labels, and navigation, so you can deliver inclusive mobile experiences.

Also Read: 19 Mobile App Testing Tools & Automation Frameworks for Android & iOS

11. Accessibility Scanner

Accessibility scanner is a software accessibility testing tool developed by Google for Android. This tool scans your screen and then gives you suggestions on how to improve the accessibility of your app based on content labels, touch target size, text and image contrast, and clickable items. The tool is available for testing apps on phones and tablets.

Key features

• Record and analyze the elements on your screen as you use and navigate through your app
• Scan a snapshot of your app or a series of screens as you interact with the apps
• Review, prioritize, and analyze accessibility issues with the help of findings organized by screen and category
• Share accessibility findings with your developers and other stakeholders for faster remediation and collaboration

Pros

• Allows you to analyze running apps directly on devices
• You get rich recommendations to address accessibility issues

Cons

• Doesn’t have support for teams who are testing on iOS, web apps, or desktop software
• You may still need manual checks for comprehensive coverage

Pricing

• Free

Best for

• Mobile QA teams and Android developers who need a quick, on-device way to identify the common accessibility issues

Automation support

• Allows automated accessibility analysis of Android app screens and user workflows

12. Accessibility Inspector

Accessibility Inspector is developed by Apple, and the tool lets you display, query, and test accessibility information for the elements in your app’s view hierarchy. You can leverage the tool to audit your apps and address the problems like clipped text and unlabeled elements, and ensure appropriate text size and color contrast levels.

Key features

• Inspect accessibility attributes of UI elements, including labels, values, traits, hints, and other information exposed to assistive technologies
• Run automated accessibility audits to identify potential accessibility issues early in the testing process
• Check accessibility for iOS, iPadOS, macOS, tvOS, and visionOS apps
• Get detailed information about selected interface elements and validate accessibility configurations when interacting with your apps

Pros

• The tool is included with Xcode at no additional cost
• Allows you to easily assess labels, traits, hints, identifiers, and other accessibility properties for individual UI elements

Cons

• Since it’s available only for Apple products, this can be a restriction for teams who are looking for cross-platform accessibility testing
• May not always fully replicate real-world testing scenarios

Pricing

• Free

Best for

• iOS and macOS developers looking to inspect accessibility properties, accessibility trees, and assistive technology behavior

Automation support

• Helps you run automated accessibility audits for iOS, iPadOS, macOS, and other Apple platform apps via XCTest integration

Color Contrast and Visual Accessibility Tools

With the help of color contrast and visual accessibility tools, your teams can verify that text, icons, and interface elements remain perceivable and readable for users with low vision, color blindness, and other visual impairments.

13. WebAIM Contrast Checker

WebAIM Contrast Checker is basically a web-based tool that helps your developers, designers, and QA teams check the color contrast of your apps. With the help of this tool, you can calculate the contrast ratio between foreground and background colors and then determine if the combination passes or fails WCAG 2 accessibility standards.

Key features

• Assess text readability and ensure sufficient visual contrast for users with low vision
• Validate the contrast requirements for large text and see if they align with different WCAG thresholds
• Check if your app’s color combinations and contrast ratios satisfy WCAG AAA requirements (contrast ratio of at least 7:1 for normal text and 4.5:1 for large text)
• Use the eye dropper tool in the Color Picker to extract the color value from any element on screen

Pros

• Automatically checks if your apps meet WCAG norms and accessibility conformance levels
• Offers advanced features and the ability to adjust colors to find accessible alternatives without manually calculating contrast ratios

Cons

• Might need manual color input for most testing scenarios
• There’s limited support for evaluating real-world UI complexity

Pricing

• Free

Best for

• Designers who are looking for a fast way to verify WCAG color contrast compliance during UI design and implementation

Automation support

• Offers a basic API that enables automated programmatic color contrast checks and returns WCAG AA/AAA pass-fail results in JSON format

Also Read: Guide to Visual Testing: Ensure a Pixel-Perfect User Experience

14. Colour Contrast Analyser (CCA)

Colour Contrast Analyser is a tool developed by Vispera with which you can check the color contrast of your website, apps, social media graphics, PowerPoint slides, PDFs, InDesign files, and more. Currently, this tool displays contrast ratio results according to WCAG 2.0, 2.1, and 2.2. Plus, CCA helps you ensure readability for all users by checking your color contrast across eight different vision deficiency settings.

Key features

• Manually check your color values by typing or pasting them in HEX, RGB, HSV and HSL formats
• Use the eye dropper icon to select a color on a page or screen
• Easily copy your contrast test results in either a short or long format and paste into assessment reports
• Set your app’s UI theme display to light, dark, or the system default and verify if the elements are accessible

Pros

• Gives you an easy way to check foreground and background color combinations without needing expertise
• Allows you to use contrast checkers early in the design process, so you can identify problematic color combinations

Cons

• You need to manually enter or select color values
• Limited collaboration features available

Pricing

• Free

Best for

• UI designers and accessibility reviewers wanting a quick browser-based tool to assess the WCAG color contrast ratios during design reviews

Automation support

• This tool mainly focuses on manual color contrast evaluation; it doesn’t offer automated testing

Open Source Accessibility Testing Tools

Accessibility testing tools open source are suitable for developers, startups, and small teams who want a cost-effective way to identify and address accessibility issues without investing in enterprise software.

15. Pa11y – Automated Accessibility Testing for CI/CD

Pa11y is one of the popular web accessibility testing tools on the market. It captures screenshots of pages post-testing to confirm the test context visually. You can configure testing behavior using command-line flags or a JSON/JavaScript config file.

Test web pages and local HTML files for accessibility compliance with standards like WCAG 2 (A, AA, and AAA). The best part? You can generate reports in multiple formats: CLI (default), JSON, CSV, TSV, or HTML.

Features

• Control execution timing with options like “–timeout,” “–wait,” and custom HTTP methods or headers
• Ignore specific rules or issue types using “–ignore” or set issue thresholds to prevent test failures
• Target specific DOM elements using “–root-element” or hide elements with “–hide-elements”
• Run Pa11y programmatically in JavaScript with full async/await or callback support

Pros

• The tool’s command-line architecture helps you incorporate accessibility checks into your automated testing pipelines
• The tool is actively maintained and doesn’t need any licenses or subscriptions

Cons

• Teams who don’t specifically have experience with using CLI may encounter a learning curve
• Few users say the tool has limited advanced dashboard features

Pricing

• It’s free as it’s an open-source tool

Best for

• Engineering teams who prefer open-source accessibility testing integrated into automated pipelines and continuous delivery workflows

Automation support

• Supports automated software accessibility testing through command-line and Node.js-based scans

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16. Axe-core

Axe-core is one of the best automated website accessibility testing tools which allows you to comply with standards like WCAG 2.0, 2.1, and 2.2 at levels A, AA, and AAA. This testing tool also adheres to rules outlined in global accessibility standards and regulations such as Section 508, EN 301 549, RGAA, and ADA.

And Axe-core offers you a suite of built-in tools like Axe DevTools for Web, Axe DevTools Extension, Axe Auditor, and Axe Monitor to ensure you deliver smooth and accessible experiences.

Key features

• Spot common issues like missing headings or ARIA mistakes without false positives
• Test across different JavaScript frameworks and web technologies 
• Shift accessibility testing earlier in your development cycle by seamlessly integrating Axe-core into your existing tools
• Automatically find issues in HTML-based user interfaces and web apps

Pros

• Highly accurate results with nearly zero false positives
• Easily integrates with browser automation frameworks and CI pipelines

Cons

• Some findings may need manual reviews
• Since Axe-core is a library, the setup and maintenance process can be challenging

Pricing

• Free, as it’s an open-source tool

Best for

• Developers who’re building custom accessibility testing frameworks

Automation support

• Allows automated accessibility testing and CI/CD integration through seamless integration with automated test frameworks

17. Tota11y

Tota11y is an accessibility visualization toolkit which is designed to let you perform accessibility testing easily by displaying accessibility information directly within a webpage.

The tool highlights accessibility issues, identifies important page structures, and offers contextual guidance. The aim of Tota11y is to help your teams spot, understand, and fix accessibility problems during everyday development and testing workflows.

Key features

• Inspect links and buttons to better understand how interactive elements are presented to your users
• Visualize page heading hierarchy and review document structure and content organization
• Display screen reader information for page elements using the Screen Reader Wand plugin
• Enable or disable accessibility plugins based on your specific testing requirements for a webpage

Pros

• One of the best features of Tota11y is its ability to annotate accessibility issues directly on the page
• Gives you detailed explanations and fix suggestions alongside identified issues

Cons

• The tool focuses more on visual inspection and manual testing; teams looking for automated checks may not find this useful
• Some users say that the tool is good for common accessibility issues rather than comprehensive WCAG coverage

Pricing

• Free, as it’s an open-source tool

Best for

• Accessibility testing and development beginners who are learning accessibility concepts through visual and educational overlays

Automation support

• Since this is more like a visualization toolkit, it does not support automated accessibility checks

Accessibility Testing Tools Comparison

To help you evaluate your options more easily, we have compared the leading accessibility scanning tools based on their primary use cases, pricing, and limitations.

Tool Name	Type	Best For	Open Source	Automation Support	Limitations
TestGrid	AI-powered automated testing platform with support for accessibility testing	Web accessibility validation alongside QA testing	No	Yes	Less focused on manual accessibility audits
Axe DevTools	Automated accessibility testing platform	Automated testing in development workflows	No	Yes	May need manual testing for full coverage
WAVE	Accessibility evaluation tool	Visual page-level accessibility review	No	Yes	Limited site-wide automation
Microsoft Accessibility Insights	Automated and assisted testing tool	Developer accessibility checks and guided audits	Yes	Yes	Not a continuous monitoring platform
Google Lighthouse	Automated auditing tool	Quick accessibility audits during development	Yes	Yes	Limited to detectable automated issues
Siteimprove	Enterprise accessibility monitoring platform	Large-scale website accessibility governance	No	Yes	Premium enterprise solution with high subscription costs
Tenon (Level Access)	Accessibility testing API and automation engine	API-driven accessibility testing	No	Yes	Limited built-in visual inspection workflows
Monsido (Acquia Web Governance)	Web governance and accessibility monitoring platform	Continuous website accessibility compliance monitoring	No	Yes	Primarily focused on governance rather than developer testing workflows
NVDA	Screen reader	Screen reader compatibility testing	Yes	No	No automated accessibility scanning
JAWS	Screen reader	Enterprise-grade screen reader testing	No	No	Commercial license required; no automation
Accessibility Scanner	Mobile accessibility scanner	Android app accessibility checks	No	Yes	Android-only
Accessibility Inspector	Accessibility inspection and audit tool	iOS and Apple platform accessibility testing	No	Yes	Limited to Apple ecosystem
WebAIM Contrast Checker	Color contrast testing tool	WCAG color contrast validation	No	Yes	Checks contrast only
Colour Contrast Analyser	Color contrast testing tool	Detailed contrast analysis across apps	Yes	No	Restricted to contrast testing
Pa11y	Open-source automated testing tool	Quick automated accessibility scans	Yes	Yes	Limited manual testing capabilities
axe-core	Accessibility testing engine	Embedding accessibility checks into test automation	Yes	Yes	Not a standalone testing platform; more of a library
tota11y	Accessibility visualization toolkit	Learning and visual accessibility debugging	Yes	No	The platform is not actively maintained

How to Choose the Right Accessibility Testing Tool: The Key Features You Should Look

1. WCAG compliance coverage

Probably one of the most critical factors you need to first look for when assessing accessibility testing tools is whether they support the latest WCAG 2.1 and WCAG 2.2 success criteria, as well as ADA, Section 508, and EN 301 549.

Since accessibility rules usually keep changing, you must make sure the accessibility and WCAG testing tools regularly update their testing rules to align with the latest WCAG requirements.

2. Automation and CI/CD integration

Search for tools which connect with CI/CD platforms like GitHub Actions, Jenkins, GitLab CI, Azure DevOps, and CircleCI. It will help you automatically scan apps during builds, deployments, and pull requests.

Automated accessibility testing tools help your team find issues early, prevent accessibility regressions, and enforce compliance standards before your code reaches production.

3. Reporting and dashboards

Accessibility scanning tools which come with centralized dashboards, accessibility scoring, severity-based issue prioritization, and exportable audit reports, enable you to easily monitor if your projects are accessible and inclusive and allow you to focus on resolving high-impact violations.

You can also look for tools with advanced dashboard features as this will help you track accessibility trends over time and measure progress toward WCAG compliance goals.

4. Browser and platform support

When you’re evaluating different accessibility testing tools or web accessibility software, check if they support browsers, operating systems, and app types your team works with. A tool with broad coverage should ideally allow testing for mobile apps, desktop apps, PDFs, and multiple browsers such as Chrome, Firefox, Safari, and Edge.

This enables you to ensure a consistent user experience across different environments.

Bringing It All Together

We can understand that selecting a tool from this long list of options can seem pretty overwhelming.

Just remember, the choice ultimately comes down to your testing needs, your budget, and your team’s skills.

Assess whether you want quick automated scans during development, continuous accessibility monitoring across large websites, mobile accessibility testing, screen reader validation, or all of the above.

Use the free trials to experience the tools firsthand. Next, determine your budget and see which tool fits it. If you’re just starting out, open-source tools can be a great first option.

And if you want to start testing with an enterprise-grade tool, you can request a free trial of TestGrid and see how it supports your accessibility goals.

Frequently Asked Questions (FAQs)

1. What are accessibility testing tools?

Accessibility testing tools are software solutions that allow you to identify, analyze, and fix accessibility problems in websites, mobile apps, and digital products. With the help of these tools, you can automate checks for issues like missing labels, insufficient color contrast, and improper semantic structure for assistive technologies like screen readers.

2. What is the difference between manual and automated accessibility testing?

Automated accessibility testing leverages tools which quickly detect common issues such as insufficient color contrast or unlabeled form fields by incorporating tests into your development pipelines. Manual accessibility testing generally includes human evaluation with techniques like keyboard navigation and screen reader testing.

3. Which accessibility testing tool is best for WCAG compliance?

Some of the top tools which enable you to comply with WCAG include TestGrid, axe DevTools, WAVE, Accessibility Inspector, Accessibility Scanner, JAWS, and NVDA. These tools allow you to perform both automated testing and manual testing using assistive technologies to achieve broader WCAG coverage.

4. Are open source accessibility testing tools reliable?

Yes. Many open-source accessibility testing tools are reliable and widely used in production environments. Tools like axe-core, WAVE, NVDA, and Tota11y help your team spot common accessibility issues and support compliance efforts.

5. Which accessibility testing software is best for enterprises?

Some of the best accessibility testing software for your enterprise can be TestGrid, Monsido, Tenon, axe DevTools, and Siteimprove. These tools come with features like cross-platform testing, continuous monitoring, governance controls, automated scans, and detailed reporting.

6. What are ADA compliance tools?

ADA compliance tools or ADA testing tools basically help teams identify and address accessibility issues that may impact compliance with the Americans with Disabilities Act (ADA). These tools can scan websites and apps for accessibility barriers, support manual accessibility testing, and generate reports for resolution.