Best Website Accessibility Checkers (2026 Updated)

Searching for the best website accessibility checker turns up dozens of options that do very different things: some scan your code and hand you a fix, others run a script in your visitors’ browsers and call it done. We compared seven of the most searched tools on what actually matters, engine, price and whether you get a real fix, starting with the one built specifically around fixing code.

Quick Facts

• Only three tools on this list (AccessBell, AccessibilityChecker.org and WAVE) test your page without also selling you a browser-based overlay widget.
• WAVE, built by the nonprofit WebAIM, has been a trusted free accessibility evaluation tool since 2001.
• Enterprise platforms like Siteimprove do not publish pricing; independent estimates put small accessibility-only contracts around $11,000/year.
• The Overlay Fact Sheet, signed by more than 1,000 accessibility professionals, names four vendors on this list (UserWay, EqualWeb, AudioEye, and accessiBe as a related product) as overlay vendors whose core product does not fix underlying code.

Compare the Best Website Accessibility Checkers

1. AccessBell

AccessBell scans your live site with axe-core running inside a real, headless Chrome browser, the same engine behind Chrome DevTools, then reports the exact failing HTML with a corrected code example. Nothing runs in your visitors’ browsers; there is no widget to fail or to explain to a plaintiff’s attorney. Full details are on our methodology page.

Why teams pick AccessBell:

• Test what you actually need to meet. WCAG 2.2, 2.1 or 2.0 at Level AA, or a preset for the ADA, Section 508 or EN 301 549.
• One flat price. $29 per domain per month, unlimited rescans, monitoring for up to 500 URLs per domain. No traffic-based pricing tiers to track.
• Real fixes, every time. Each issue shows the failing markup and a working example, not a generic tip.
• Built for the whole team, not just one role: developers get failing components, QA gets repeatable criterion-level checks and CSV export, content teams get plain-language explanations.
• A full free toolkit, no account required: a free scanner, the WCAG success criteria library, an accessibility statement generator, and checkers for your specific platform or industry.
• 3-day free trial, then $29/domain/month, cancel anytime.

If you want a checker that finds real problems and hands you a real fix, at a price you can predict before you sign up, this is what AccessBell is built for.

2. AccessibilityChecker.org

Like AccessBell, AccessibilityChecker.org scans your actual page rather than patching it with a widget. It adds SmartFix, an AI-assisted remediation feature with human review before changes ship, LiveStatement for auto-generating an accessibility statement from scan data, and a Compliance Vault for exportable audit records. Pricing starts at $69/month (billed annually) for up to 25 URLs, with a 7-day free trial. Strong option if bundled AI-suggested fix copy and exportable compliance documentation matter to you.

3. UserWay

UserWay is a browser-based overlay: JavaScript that adjusts your page for visitors without changing your site’s underlying code. It has a free tier and paid plans reported to start around $490/year, plus a “Legal Support Program” pledge. UserWay itself was named in a 2024 class action alleging its compliance and legal-support claims fell short in practice; see our UserWay alternative breakdown for what happened.

4. EqualWeb

EqualWeb combines an AI-adjustable overlay widget with a paid manual remediation service. The overlay alone runs roughly $29–$39/month, with a $199/month Business plan for unlimited sites and hourly scans. EqualWeb is named in the Overlay Fact Sheet alongside accessiBe and UserWay; its manual service add-on is where actual code fixes happen.

5. AudioEye

AudioEye pairs automated overlay-style detection with a paid human audit and remediation service, producing manual audit letters and VPAT documentation. That managed-service layer is a real differentiator for teams that want a vendor to own remediation rather than hand it to their own developers. It is also the priciest option here, commonly $199–$799+/month at entry tiers and often in the tens of thousands annually for mid-market contracts once services are included.

6. WAVE

WAVE, built by the nonprofit WebAIM, is one of the most trusted free accessibility tools on the web, in continuous use since 2001. Its browser extension overlays icons directly on your page showing errors, contrast issues, alerts and structural elements, which makes it excellent for visually understanding an issue in context. It has no cost and needs no account, but it does not store results, run scheduled monitoring, or generate a shareable report, so most teams use it alongside a checker like AccessBell rather than instead of one.

7. Siteimprove

Siteimprove is a full digital governance suite bundling accessibility monitoring with SEO, content quality, analytics and policy management, aimed at large organizations. It does not publish pricing; independent estimates put small accessibility-only engagements around $11,000/year, with enterprise bundles reaching well into five figures. If you need one platform across marketing, content and compliance teams at that scale, it is a legitimate choice. If you only need accessibility scanning and monitoring, you are likely paying for modules you will not use; see our Siteimprove alternative comparison for the details.

How to Choose

• Want to fix your own code at a flat, predictable price? AccessBell.
• Want AI-suggested fix copy and exportable compliance records bundled in? AccessibilityChecker.org.
• Want a free widget and are comfortable with the overlay tradeoffs? UserWay or EqualWeb.
• Want a vendor’s team to own remediation for you? AudioEye.
• Want a free, visual, one-page-at-a-time tool alongside whatever else you use? WAVE.
• Need a bundled enterprise governance suite, budget included? Siteimprove.

Want to see how the engines compare on identical code? We ran 10 accessibility checker tools against the same test website and published every result. Most teams start the same way regardless of which platform they end up on: see what is actually broken. Run a free scan and get a real, code-level report in under a minute, no account required.

Frequently Asked Questions

What is the best website accessibility checker overall?

For most teams that want to actually fix their site, AccessBell and AccessibilityChecker.org are the strongest picks: both scan real, rendered pages and show you the failing code rather than patching it with a widget. Which one fits best usually comes down to price and which extra features (AI-assisted fixes, industry-specific checkers) matter to you.

What is the difference between a checker and an overlay?

A checker scans your site and reports what fails, with the code to fix. An overlay is a script that runs in your visitors' browsers and tries to adjust the page at runtime, without changing your underlying code. Checkers give you a permanent fix; overlays give you a temporary patch that disappears the moment the widget fails to load.

Is a free website accessibility checker good enough?

A free scan is a strong starting point and will catch a meaningful share of WCAG failures. For ongoing protection, most teams eventually add scheduled monitoring, since new pages and code changes introduce new issues over time.

Do these tools replace manual accessibility testing?

No. Every tool on this list, automated or overlay-based, misses a portion of WCAG success criteria that require human judgment, such as whether alt text is meaningful or focus order makes sense. Pair any checker with keyboard and screen reader testing.