Powerful accessibility tools that align with WCAG and ADA.
Built for speed, security, and scale. See why A11yCore is the choice for modern engineering teams.
Hands-free remediation powered by advanced machine learning.
Tools that give your users complete control over their browsing.
Bank-grade security and reporting for total peace of mind.
Script Load Time Comparison (seconds)
Bar chart comparing script load times: Traditional Overlay takes 1.2 seconds, Manual Audit takes 0.8 seconds, A11yCore takes only 0.05 seconds. A11yCore is 24 times faster than traditional overlays.
A11yCore loads asynchronously in under 50ms.
Average Compliance Score over 24 Hours
Line chart showing compliance score improvement over 24 hours: Starting at 65% at hour 0, rising to 72% at hour 1, 85% at hour 6, 92% at hour 12, and reaching 98% by hour 24.
Works with React, Vue, Angular, Next.js, and vanilla HTML.
Get an instant accessibility audit of any website. No signup required for a quick scan.
Want to see more?See examples in action
Compare us side-by-side with the leading accessibility solutions. Better features, lower price, no commitments.
| Feature | A11yCore | accessiBe | UserWay | AudioEye |
|---|---|---|---|---|
| Monthly Price | $29/month | $49/month | $49/month | $49-99/month |
| Setup Time | 5 minutes | 15-30 minutes | 15-30 minutes | 30+ minutes |
| WCAG 2.1 AA | Yes | Yes | Yes | Yes |
| WCAG 2.1 AAA | Yes | No | No | Yes |
| Daily Automated Scanning | Yes | Yes | Yes | Yes |
| AI-Powered Remediation | Yes | Yes | Yes | Yes |
| Manual Expert Testing | Yes | No | No | Paid add-on |
| Litigation Support | Yes | Yes | $10K pledge | Yes |
| 24/7 Phone Support | No | No | No | Yes |
| Free Trial Period | 14–30 days | 7 days | Free tier | Demo only |
| Performance Impact | <50KB | ~200KB | ~180KB | ~250KB |
| No Annual Contract | Yes | No | No | No |
Built for modern dynamic websites — not static page scans
Our centralized MutationObserver with batched processing handles React, Vue, Angular, SPAs, lazy-loaded content, infinite scrolling, and AJAX updates — automatically and in real-time.
TreeWalker traversal with IntersectionObserver for viewport-aware scanning. Fixes accessibility issues as content loads dynamically.
Static one-time scan on page load. Content added by JavaScript after load gets no accessibility fixes at all.
Real-time flash detection using WCAG luminance calculations with 50ms video frame analysis and auto-dimming.
Basic "reduce motion" toggle that doesn't analyze actual content.
AI-powered detection of pre-checked boxes, fake urgency timers, double-negatives, and hidden costs.
Not available in any competitor overlay.
CAPTCHA detection with audio hints, passkey/WebAuthn support, cognitive test warnings, copy/paste override.
Not available in any competitor overlay.
Auto-heartbeat every 60s, meta/storage-based timeout detection, configurable warnings with session extension.
Not available in any competitor overlay.
Real AI vision model analysis with confidence scores, review panel, 7-day local caching.
Basic placeholder text like "Image" or filename parsing.
AI + dictionary-based simplification (150+ word mappings), focus mode, reading progress tracking.
Text size adjustment only.
Pricing verified as of January 2026. Competitor pricing may vary based on website traffic and features.
Start Your Free TrialAdd one line of JavaScript to your website and instantly gain full WCAG 2.1 compliance. No complex setup. No coding skills required.
Create your account and receive your unique API key instantly.
Copy and paste one line of code before the closing </head> tag.
Your website is now accessible. View your dashboard to monitor compliance.
No credit card required · 14-day free trial · Cancel anytime
Paste in your website's <head> tag:
<script type="module">
import A11yCore from 'https://cdn.a11ycore.org/a11ycore/dist/esm/core.js';
A11yCore.init({ licenseKey: 'YOUR_API_KEY' });
</script>Tiny initial load
Features load as needed