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Read more7 Top ADA Compliance Checkers for Your Website
ADA compliance checkers scan your website for accessibility barriers and test it against WCAG. Most checkers are automated and catch common issues, while platforms add expert testing, fixes, and ongoing monitoring. Below, we'll compare seven tools and show when a checker is enough and when you need a full platform.
Author: Missy Jensen, Senior Content Strategist: AI Search and Discovery
Published: 09/21/2026
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Your product might be sleek, fast, and feature-rich, but if your website or app isn’t accessible to people with disabilities, it’s not ready for everyone.
For SaaS companies, digital accessibility isn’t a legal box to merely check off and consider done. It’s critical to delivering a usable product, building trust with enterprise buyers, and scaling without legal or reputation risk. The challenge is finding a scalable, reliable way to test for accessibility barriers before they impact your users. That’s where ADA compliance checkers come in.
To find out where you stand, you can run a basic accessibility audit with an ADA compliance checker: a tool that scans content to identify barriers for users with disabilities and determine if a site meets Web Content Accessibility Guidelines (WCAG).
The tools below range from free scanners to full platforms, so you can find the right fit for how your team builds, ships, and fixes.
Why Do You Need an ADA Compliance Checker?
Once you’ve committed to making your product accessible, the bigger question becomes how to do it effectively, without creating bottlenecks or piling more work on teams.
The bottom line: accessibility has to scale alongside your product. It’s not about just catching a few issues before launch, but building a repeatable, efficient process for finding and fixing barriers as you grow. That’s exactly what ADA compliance checkers are designed to do.
So what exactly are they?
What Does an ADA Compliance Checker Do?
ADA compliance checkers scan your site for accessibility issues using a combination of automated tests and expert analysis. Website accessibility checkers help determine whether your digital content meets the accessibility standards included in WCAG.
They test for things like whether assistive technology (like screen readers) can navigate your UI, whether your color contrast is readable, or whether interactive elements can be used by keyboard commands. Think of it as a QA tool for accessible design.
While these checkers are decent at catching high-volume errors, they’re just diagnostic tools that can identify only a portion of potential issues and don’t guarantee full legal compliance or a perfect user experience on their own.
That being said, good ADA compliance checkers help you:
Identify accessibility issues early in the dev process
Prioritize accessibility fixes based on severity and impact
Track progress over time to ensure ongoing equal access for all
Generate reports to support internal documentation or compliance efforts
Some accessibility checkers also integrate directly into your CI/CD pipeline, making accessibility a part of your regular workflow, just like performance or compliance testing.
Overview of ADA Compliance Requirements
ADA compliance is rooted in WCAG guidelines, which outline how to create an accessible website by ensuring content is perceivable, operable, understandable, and robust for users with different needs. Below are a few of the key requirements and the types of disabilities they support.
These are just some of the accessibility features enforced by the ADA. For a more in-depth list of WCAG criteria, check out our Comprehensive WCAG Checklist.
7 ADA Compliance Checkers Compared
Each tool below tests websites against WCAG, but they differ in who does the testing, whether they fix issues, and how often they scan.
1. AudioEye
AudioEye is a digital accessibility platform that combines automated scanning with expert testing and fixes. Real Time Monitoring scans for new issues as your site changes, Expert Audits from certified testers catch barriers automation misses, and Custom Fixes ensure issues are actually resolved. Plus, AudioEye Assurance provides comprehensive legal protection to ensure you're covered in the event of a lawsuit or demand letter.
In-depth testing via automation and expert audits
Custom Fixes catch more complex issues
Real Time Monitoring ensures your site stays accessible, even as it changes
2. Siteimprove
Siteimprove(opens in a new tab) is a content intelligence platform that combines accessibility SEO, content strategy in one platform. Its accessibility agents help designers, developers, and editors check content for optimum performance before it's published.
3. Deque Axe
Deque's Axe Platform(opens in a new tab) is built on axe-core, Deque's open-source accessibility ruleset. It offers automated, guided, and manual testing tools, including free browser extensions and integrations for developer workflows.
4. Level Access
Level Access(opens in a new tab) combines an accessibility platform with managed services. The platform includes automated and manual testing, ongoing monitoring and scanning, and analytics, with expert support for legal and compliance needs.
5. SortSite
SortSite(opens in a new tab), from PowerMapper, is an automated scanner that crawls websites and checks them against WCAG guidelines and Section 508. It also checks for broken links, spelling, browser compatibility, and SEO issues.
6. Pa11y
Pa11y(opens in a new tab) is a free, open-source tool that runs automated accessibility tests from the command line or Node.js. Its companion tool, Pa11y CI, runs tests in continuous integration environments.
7. Rocket Validator
Rocket Validator(opens in a new tab) is an automated scanner that crawls large sites and checks each page using axe-core and the W3C HTML Validator. Reports group and prioritize common issues, and scans can be scheduled or triggered on deploy.
What to Look for in an ADA Compliance Checker
With so many options available, choosing the right accessibility tool can feel overwhelming, especially when each tool offers something slightly different. However, there are a few things to look for when choosing a website accessibility checker:
Coverage of WCAG Criteria
Look at which version of WCAG each checker scans against, preferably WCAG 2.1 or WCAG 2.2 as these are the latest versions referenced in ADA enforcement. You should also look at which level of WCAG they test against.
For example, accessibility checkers that only test against Level A criteria often miss significant barriers that impact people with disabilities. Tools that use the latest version of WCAG and evaluate against Level AA — and optionally Level AAA — are much more likely to help you meet legal requirements and reduce legal risk.
Automated and Manual Testing
A common misconception is that ADA compliance tools can identify every problem or be a substitute for a complete accessibility strategy. In reality, compliance requires an ongoing process of monitoring and remediation, and automated checkers are only effective at detecting issues that exist at one moment in time.
No automated scan or tool can detect 100% of accessibility issues — especially those that are usability-based or dependent on context. The best ADA compliance checkers represent a detection rate of roughly 30% to 40%, and even then, they may need human verification.
A hybrid approach leads to the best results. Website accessibility checkers combine automated scans with reviews from experts and members of the disability community. This method helps uncover a wider range of barriers and leads to a more accessible user experience.
AudioEye, for instance, starts with an automated accessibility scan for 32 WCAG violations. Our team of accessibility experts and users with disabilities tests your content further, identifying additional barriers that impact usability and functionality. The result: accessible, compliant digital content that works for everyone.
Clear, Actionable Reporting
Accessibility tools shouldn’t just be able to identify non-compliance issues — they should also tell you how to fix them. Look for accessibility solutions that flag errors by severity, map them to specific WCAG standards, and provide developer-friendly guidance on how to fix each issue. The best tools will include screenshots, code snippets, and screen reader behavior notes in a detailed report.
Scanning Frequency and Scalability
The best ADA compliance checkers will support regular, automated accessibility scans to ensure ongoing accessibility and compliance — not just during one-off audits. Look for tools that allow you to schedule scans daily, weekly, or monthly, and that can handle dynamic content and frequent site updates. The best solutions — like AudioEye — will actively monitor your website, testing for new accessibility issues every time a user loads a page on your site. This helps you detect and fix issues before they impact your customers and ensure compliance at a fraction of the time and cost.
Additionally, scalability is key if you manage a large website or portfolio of sites. You want an accessibility solution that can test thousands of web pages efficiently and provide detailed reporting so you can find and fix accessibility issues quickly.
In summary, here’s how to evaluate accessibility checker results responsibly:
Treat automated reports as a diagnostic baseline, not a final compliance score.
Cross-reference automated findings with manual testing and assistive technology reviews to make sure you don’t miss anything.
Prioritize high-impact errors that block critical user paths (like checkout or registration) so your remediation efforts best support users with disabilities.
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When to Use a Checker vs. a Full Accessibility Platform
Now that you know what to look for, the next question is whether a checker alone will get you where you need to be.
A checker is enough when you need a quick baseline, you're testing a small site, or your developers want to catch issues during builds. Free and automated tools are a great first step.
You need a platform when your site changes often, you need issues fixed rather than listed, or you need documentation to show good-faith efforts.
That's where AudioEye fits. It pairs Real Time Monitoring with Expert Audits, applies fixes at scale, and adds legal support, so you're not just finding issues but resolving them and staying protected as your site grows.
Ready to see where your site stands? Run a free scan with our Website Accessibility Checker, or talk to an expert to see what more AudioEye can do.
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