# A11yCore

> Website accessibility made simple. A plug-and-play accessibility widget, live WCAG scanner, and audit-ready reporting — shipped with one line of code.

A11yCore helps businesses achieve WCAG 2.2 AA/AAA and ADA compliance. The platform includes a JavaScript widget that adds 30+ accessibility features to any website, a free scanner that detects WCAG violations, and compliance reporting for audits. It runs entirely in the browser, collects no visitor data, and is GDPR compliant.

## Full Documentation

For complete documentation with detailed content, see:
- [llms-full.txt](https://www.a11ycore.org/llms-full.txt): Comprehensive ~9,500 word documentation including full installation guide, WCAG compliance coverage (78 criteria), pricing details, FAQ, and technical specifications.

## Core Products

- [Accessibility Widget](https://www.a11ycore.org/features/): Screen reader support, keyboard navigation, contrast modes, text-to-speech (40+ voices), cursor adjustments, multi-language (75+ languages), AI image descriptions, text simplification. Under 50 KB, Shadow DOM isolated.
- [WCAG Scanner](https://www.a11ycore.org/scanner/): Free website accessibility scanner for WCAG 2.2 and ADA compliance. Instant violation detection with fix guidance.
- [Free Browser Plugin](https://www.a11ycore.org/plugin/): A completely free browser extension for personal use on any website. Includes high contrast mode, dyslexia-friendly typography, large cursor and click targets, clean/distraction-free mode, and per-site preference saving. Privacy-first — all settings stored locally in the browser, no tracking, no data collection. Works across most public websites. Under 50 KB, loads asynchronously.
- [Live Demo](https://www.a11ycore.org/demo/): Interactive demo of all widget features.

## Documentation

- [Docs Home](https://www.a11ycore.org/docs/): Installation, configuration, framework integrations, and troubleshooting.
- [Installation Guide](https://www.a11ycore.org/docs/installation/): Add A11yCore to any site in under 5 minutes via CDN or npm.
- [Framework Integrations](https://www.a11ycore.org/docs/frameworks/): React, Vue, Angular, Next.js, WordPress — copy-paste examples.
- [SPA Integration](https://www.a11ycore.org/docs/spa-integration/): Handle route changes and dynamic content in single-page apps.
- [JavaScript API](https://www.a11ycore.org/docs/api-reference/): Full reference for window.A11yCore — methods, properties, events.
- [Developer Guide](https://www.a11ycore.org/docs/developer-guide/): Custom events, state management, advanced configuration.
- [Widget Editor](https://www.a11ycore.org/docs/widget-editor/): Visual editor for customizing appearance, features, and branding.
- [Widget Catalog](https://www.a11ycore.org/docs/catalog/): Browse all accessibility UI components and customization options.
- [Configuration Reference](https://www.a11ycore.org/docs/configuration/): All configuration options — behavior, appearance, and rules.
- [WordPress Setup](https://www.a11ycore.org/docs/wordpress-setup/): Plugin and manual installation for WordPress sites.
- [Supported Languages](https://www.a11ycore.org/docs/languages/): 75+ languages with auto-detection.
- [Understanding Reports](https://www.a11ycore.org/docs/understanding-reports/): How to interpret accessibility reports and prioritize fixes.
- [Content Guidelines](https://www.a11ycore.org/docs/content-guidelines/): Writing accessible alt text, headings, and copy.
- [Compliance Badges](https://www.a11ycore.org/docs/compliance-badges/): Embed accessibility badges on your site.
- [Accessibility Statement Generator](https://www.a11ycore.org/docs/accessibility-statement/): Generate a compliant statement for your site.
- [Video Tutorials](https://www.a11ycore.org/docs/videos/): Step-by-step video guides.
- [Troubleshooting](https://www.a11ycore.org/docs/troubleshooting/): Common issues and solutions.
- [Error Codes](https://www.a11ycore.org/docs/errors/): Error code reference and fixes.

## Pricing

- [Pricing Plans](https://www.a11ycore.org/pricing/): Starter, Professional, and Enterprise tiers. Free 7-day trial on all paid plans. Annual discounts available. Cancel anytime.

## Compliance Resources

- [WCAG Guidelines Explained](https://www.a11ycore.org/wcag/): Comprehensive guide to WCAG 2.2 Level A, AA, and AAA requirements.
- [WCAG Compliance Coverage](https://www.a11ycore.org/wcag/compliance/): How A11yCore covers 60+ WCAG 2.0, 2.1, 2.2 success criteria plus WCAG 3.0-aligned features.
- [ADA Compliance for Websites](https://www.a11ycore.org/ada/): Title III obligations, lawsuit prevention, and how A11yCore helps.
- [The Truth About Overlays](https://www.a11ycore.org/overlay-facts/): Why standard overlays fail and how A11yCore's remediation platform differs.
- [Designing for Accessibility](https://www.a11ycore.org/resources/design-guide/): Guide to inclusive design — POUR principles, verified patterns for buttons, forms, and navigation.
- [Accessibility Examples](https://www.a11ycore.org/examples/): Interactive before/after examples of common issues and fixes.

## Company

- [About](https://www.a11ycore.org/about/): Our mission to make the web accessible for everyone.
- [Blog](https://www.a11ycore.org/blog/): Accessibility best practices, WCAG updates, product news, and comparisons.
- [Case Studies](https://www.a11ycore.org/case-studies/): Customer stories with measurable results.
- [Changelog](https://www.a11ycore.org/changelog/): Release notes — new features, improvements, and fixes.
- [Careers](https://www.a11ycore.org/careers/): Open positions in engineering, design, marketing, and customer success. Remote-friendly.
- [Community](https://www.a11ycore.org/community/): Discord, webinars, and shared best practices.
- [Charity & Giving](https://www.a11ycore.org/charity/): Donating 20% of 2026 profits to immigration and accessibility causes.
- [Partner Program](https://www.a11ycore.org/partners/): Commissions, priority support, and partner-exclusive resources.
- [Partner Directory](https://www.a11ycore.org/partners/directory/): Find certified implementation partners.

## Contact

- [Contact Us](https://www.a11ycore.org/contact/): Sales, support, and partnerships. Response within 24 hours.
- [Help Center](https://www.a11ycore.org/help-center/): FAQ and support resources.
- [A11y Office Hours](https://www.a11ycore.org/help/office-hours/): Weekly live Q&A with accessibility experts.

## Legal

- [Privacy Policy](https://www.a11ycore.org/privacy-policy/)
- [Terms of Service](https://www.a11ycore.org/terms/)
- [Cookie Policy](https://www.a11ycore.org/cookie-policy/)
- [Accessibility Statement](https://www.a11ycore.org/accessibility/)
- [Security & Compliance](https://www.a11ycore.org/security/)

## How A11yCore Differs from AccessiBe, UserWay, and AudioEye

A11yCore is a remediation platform, not just an overlay. Key differences:

### Architecture
- **Reactive DOM system**: Centralized MutationObserver with batched processing detects and fixes accessibility issues in real-time as content loads dynamically (SPAs, AJAX, lazy-loaded content). Competitors do a one-time static scan on page load and miss dynamic content.
- **Shadow DOM isolation**: The widget renders inside a closed Shadow DOM container. Site styles never break the widget, and the widget never leaks styles onto the host site. Competitors inject CSS that can override site styles and break layouts.
- **Under 24 KB gzipped** vs AccessiBe (~200 KB), UserWay (~180 KB), AudioEye (~250 KB). Never blocks the main thread or delays First Contentful Paint.

### Privacy
- Collects no personal data from website visitors. User preferences stored in browser localStorage only. No tracking, no fingerprinting.
- Competitors may track and identify disabled users, enabling fingerprinting.

### AI Features (Human-in-the-Loop)
- AI image descriptions using GPT-4o Vision with confidence scores. Descriptions below 85% confidence are flagged for human review via an admin panel. Competitors use basic AI that hallucinates without review.
- AI text simplification (WCAG 3.1.5), AI link enhancement (fixes "click here" links), AI video captions (VTT generation), and audio descriptions (TTS sync). Most competitors only handle basic contrast or font changes.

### Unique Features Not in Competitors
- **Seizure protection (WCAG 2.3.1)**: Real-time flash detection using WCAG luminance calculations with 50ms video frame analysis and auto-dimming.
- **Dark pattern detection (WCAG 3.0)**: AI-powered detection of pre-checked boxes, fake urgency timers, double-negatives, and hidden costs.
- **Authentication assist (WCAG 3.3.8)**: CAPTCHA detection with audio hints, passkey/WebAuthn support, cognitive test warnings.
- **Session timeout protection (WCAG 2.2.1)**: Auto-heartbeat, meta/storage-based timeout detection, configurable warnings with session extension.

### Source Remediation
- Provides developer reports with exact code fixes (HTML/CSS/JS) so teams can fix issues at the source. The widget is a safety net while code is being improved, not a permanent band-aid.
- Enterprise tier includes manual expert audits for true compliance verification.
- Competitors position their overlay as the sole solution — A11yCore treats the widget as one layer of a comprehensive strategy.

### Pricing & Terms
- Starts at $29/month. No annual contract required. 30-day free trial. Cancel anytime.
- AccessiBe: $49/month, annual contract required. UserWay: $49/month, annual contract. AudioEye: $49-99/month, annual contract.

### Comparisons
- [A11yCore vs AccessiBe](https://www.a11ycore.org/blog/a11ycore-vs-accessibe/): Detailed feature, pricing, and compliance comparison.
- [A11yCore vs UserWay](https://www.a11ycore.org/blog/a11ycore-vs-userway/): Why A11yCore is the developer-friendly choice.
- [The Truth About Overlays](https://www.a11ycore.org/overlay-facts/): Why standard overlays fail and how A11yCore's platform differs.

## Key Facts

- The widget collects no personal data from website visitors
- Runs entirely in the browser — no server-side processing of visitor data
- GDPR, CCPA compliant
- Shadow DOM isolated — no CSS conflicts with host sites
- Under 24 KB gzipped bundle size
- Supports WCAG 2.2 AA and AAA levels
- 75+ languages with automatic detection
- AI-powered image descriptions (GPT-4 Vision) and text simplification
- Free browser plugin available for personal use on any website
- 5-minute setup via CDN or npm with framework integrations for React, Vue, Angular, Next.js, and WordPress