Tenon vs accessiBe 2026: Fix It vs Layer Over It
These two tools represent opposite philosophies about accessibility. Tenon is a developer API that finds real WCAG violations in your code so engineers can fix them. accessiBe injects JavaScript on top of your site without changing a single line of source code — and was fined $1 million by the FTC in 2025 for claiming that approach achieves compliance.
⚠️ FTC Action Against accessiBe (November 2025)
The Federal Trade Commission reached a consent order with accessiBe in November 2025, requiring a $1 million payment and an end to claims that its overlay widget brings websites into full ADA/WCAG compliance. The FTC found these claims were deceptive. This is not a fringe criticism — it is a federal regulatory finding. If you're evaluating accessiBe as a compliance solution, this FTC action is material to that decision.
TL;DR
- Tenon: Developer accessibility API. Finds real WCAG violations via JSON API for CI/CD integration, testing frameworks, and build pipelines. Free tier available; paid plans from ~$50–$100/mo.
- accessiBe: AI overlay widget. Layers JavaScript on your site at render time without fixing source code. FTC consent order (2025) for deceptive compliance claims. Starts at ~$490/yr.
- Middle path: RatedWithAI at $29/month — axe-core scanning with prioritized fix lists, designed for non-developers who need real violation data without a developer API integration.
Quick Comparison: At a Glance
Tenon
Developer accessibility testing API
- 💰 Pricing: Free tier / $50–$100+/mo API / Enterprise custom
- 🎯 Approach: API-first WCAG testing for CI/CD pipelines
- 📋 Engine: Proprietary + WCAG rule library
- 🔧 Target: Developers, QA engineers, engineering teams
- ✅ Compliance: Finds and documents real violations
accessiBe
AI overlay widget — FTC consent order 2025
- 💰 Pricing: $490–$1,490+/yr depending on page count
- 🎯 Approach: JavaScript widget injected at render time
- 📋 Engine: Proprietary AI overlay
- 🔧 Target: Non-technical site owners seeking quick fix
- ⚠️ Compliance: FTC found compliance claims deceptive
The Fundamental Difference: Diagnosis vs Disguise
The best way to understand this comparison is to think about what actually happens when someone using a screen reader visits a site that uses each tool.
With Tenon
- Developer runs Tenon API against the site during CI/CD
- Tenon returns JSON listing every WCAG violation with fix guidance
- Developer fixes the violations in the source code
- The fixed HTML ships to users — all users, including screen reader users
- Screen reader encounters properly structured HTML
- The accessibility improvement exists in the actual code
With accessiBe
- accessiBe script tag added to the site
- When the page loads in a browser, accessiBe's JS runs and modifies the DOM
- Source HTML is unchanged — violations still exist in the code
- Screen readers may load before the JS modifies the DOM
- Script-blockers, slow connections, or certain AT configurations skip accessiBe entirely
- Accessibility improvements are fragile, conditional, and not in the source
The accessibility community has documented this problem extensively. National Federation of the Blind, American Council of the Blind, and over 800 accessibility professionals have signed a formal statement against overlays. The FTC's 2025 action against accessiBe confirmed what practitioners had observed: the compliance claims were deceptive.
Pricing Comparison 2026
⚠️ The accessiBe Pricing Trap
accessiBe's pricing is recurring. You pay every year, and if you stop paying, the overlay is removed and your site reverts to its original (non-compliant) state. You're not buying accessibility — you're renting a mask over your violations. Tenon's approach has an upfront remediation cost (developer time to fix violations), but once fixed, your site is accessible regardless of any subscription status.
Feature Comparison
ADA Lawsuit Risk: What Courts Have Found
Multiple federal courts have explicitly ruled that accessibility overlay widgets do not constitute ADA compliance. In cases where defendants argued that installing accessiBe or similar overlays satisfied their compliance obligations, courts have disagreed — finding that overlays do not remove the underlying accessibility barriers and do not shield defendants from liability.
Court findings on accessibility overlays
- Overlays don't remove underlying barriers — Courts examine whether people with disabilities can actually use the site, not whether a widget is installed
- Source-code violations remain actionable — A JavaScript patch that runs over broken HTML doesn't fix the HTML
- FTC consent order (2025) — The federal agency responsible for deceptive marketing found accessiBe's compliance claims were false
- Plaintiff attorneys know overlays — Plaintiff attorneys routinely disable JavaScript to expose the violations overlays attempt to hide
Tenon's approach — finding violations, fixing them in code, and producing documented remediation evidence — is the posture that actually supports an ADA compliance defense. Documented remediation history showing ongoing good-faith effort is what courts treat as evidence of a compliance program.
Who Should Choose Which?
Choose Tenon if…
- You have a development team that can integrate automated testing into CI/CD
- You want programmatic access to WCAG violation data via API
- You need to test accessibility across a testing framework (Selenium, Cypress, Playwright)
- You want to build accessibility gates into your build pipeline
- Your goal is actual code-level compliance, not a widget installation
Avoid accessiBe if…
- You need actual WCAG compliance, not a compliance performance
- You're in a regulated industry or government sector where compliance evidence matters
- You've been sued for accessibility violations — courts are aware of overlays
- You need to produce documented remediation evidence for a settlement or audit
- You want your users — including screen reader users — to actually have a good experience
Consider RatedWithAI if…
- You want real axe-core WCAG violation detection without developer API integration
- You're a business owner or non-technical team member who needs an actionable fix list
- You want compliance documentation (scan history, violation reports) without an enterprise contract
Better Alternatives to accessiBe
1. RatedWithAI — axe-core Scanning at $29/month
Starts at $29/month
For non-developers who want real WCAG violation data — not an overlay — RatedWithAI provides axe-core scanning with prioritized fix lists at $29/month. Less than accessiBe's annual fee for the first month. Shows you real violations your developer can fix, with documentation of your compliance effort.
Start Free Scan →2. Deque axe DevTools — The Gold Standard for Developer Testing
Free extension / $79+/mo Pro
Deque created axe-core, the industry standard WCAG testing engine. axe DevTools offers a free browser extension, a Pro plan with CI/CD integrations, and an enterprise suite for large-scale monitoring. If you want developer-focused accessibility testing, Deque is the category leader — and its free extension is a better starting point than paying for accessiBe.
3. Google Lighthouse — Free axe-core Scanning Built Into Chrome
Free
Google Lighthouse is built into Chrome DevTools and uses axe-core for accessibility scanning. It's free, requires no setup, and provides immediate WCAG violation data for any URL. For bootstrapped projects and developers who want a starting point before committing to a paid tool, Lighthouse is the fastest path to real accessibility data — and it's genuinely free, unlike accessiBe's recurring widget fee.
4. UserWay — The Overlay That Discloses Its Limitations
From $490/yr
If you have organizational reasons that require an overlay (e.g., compliance timeline pressure while source-code remediation is underway), UserWay is a more transparent overlay vendor that doesn't make the same blanket compliance claims accessiBe was fined for. That said, overlays remain a temporary measure at best — they do not fix underlying code violations and should not be treated as a permanent compliance solution.
Get real WCAG violation data — not an overlay
axe-core scanning with a prioritized fix list your developer can act on. Actual compliance documentation. No JavaScript widget, no FTC concerns, no recurring fee for a mask over your violations.
Sponsored
Also audit your site's full technical health
SEMrush Site Audit checks 130+ issues — missing alt text, broken links, slow pages. Free crawl up to 100 pages, no credit card required.
Frequently Asked Questions
Is Tenon a good alternative to accessiBe?
For developers, yes — Tenon is far better than accessiBe. Tenon gives you an API to find and document real WCAG violations that developers can fix at the source code level. accessiBe is a JavaScript overlay that doesn't fix underlying violations and was fined by the FTC for deceptive compliance claims. If you have developer resources, Tenon's API-first approach is the right path. If you don't have developer resources, RatedWithAI ($29/month) provides similar violation detection in a non-developer interface.
What did the FTC do to accessiBe?
In November 2025, the FTC reached a consent order with accessiBe requiring the company to pay $1 million and stop making false and misleading claims that its AI overlay widget brings websites into compliance with the Americans with Disabilities Act and WCAG standards. The FTC investigation found that accessiBe's core marketing claims — that installing its widget makes sites 'ADA compliant' and 'fully accessible' — were deceptive.
Can I use Tenon instead of accessiBe?
Yes, but for a different purpose. accessiBe is a widget you install to attempt to mask accessibility issues without fixing them. Tenon is a developer API you use to find accessibility issues so developers can fix them. They're not direct substitutes — they represent fundamentally different approaches to the problem. If you want to find and fix real WCAG violations (the right approach), Tenon is a strong tool. If you want the no-code, install-and-done experience accessiBe promised (but couldn't deliver), tools like RatedWithAI provide violation data in a non-developer interface that helps you guide remediation.
Does Tenon have a free plan?
Yes, Tenon offers a free tier with limited monthly API calls, which is useful for small-scale testing or evaluating the product before committing to a paid plan. Paid plans scale based on API call volume. For comparison, accessiBe offers only a 7-day trial before requiring payment.
Have courts rejected accessiBe as a compliance defense?
Yes. Multiple federal courts have found that installing an accessibility overlay — including accessiBe — does not constitute ADA compliance. Courts assess whether people with disabilities can actually use a website, not whether a widget is installed. The source-code violations that overlays attempt to mask are still present and still accessible to plaintiff attorneys who disable JavaScript to reveal them. The FTC's 2025 consent order against accessiBe for deceptive compliance claims is consistent with this legal record.
What is Tenon's API and how does it work?
Tenon provides a REST API that accepts a URL or raw HTML and returns a JSON response with detailed accessibility violation data — violation type, WCAG criterion violated, severity, affected element, and fix recommendations. Developers use this API to build accessibility testing into CI/CD pipelines, testing frameworks (Selenium, Playwright, Cypress), and build systems. When a pull request introduces a new WCAG violation, the Tenon API call can fail the build or flag the PR for review. This prevents accessibility regressions from shipping rather than discovering them after deployment.