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Web Accessibility Heuristic Enhancer

Version License Userscript GitHub Stars A11Y

A high-performance userscript that automatically improves accessibility on any website using advanced heuristics.
It enhances unlabeled buttons, links, forms, dialogs, regions, keyboard navigation, focus management, dynamic components, and infinite-scroll announcements — all without external APIs or dependencies.

✨ Features

  • Smart ARIA role inference
  • Advanced button + link labeling heuristics
  • Repairs icon-only or visually unlabeled buttons
  • Enhanced keyboard support (Enter, Space, Escape, Tab)
  • Modal accessibility (focus trap, aria-modal)
  • Dropdown & accordion accessibility
  • Tab accessibility (roving tabindex + ARIA linking)
  • Form accessibility (labels, errors, aria-required)
  • Automatic region detection (header, nav, main, footer)
  • Infinite scroll announcements (zero layout thrashing)
  • Sticky header deduplication
  • Fully reversible rollback system
  • Memory-safe (GC for removed nodes)
  • Hybrid MutationObserver scanning optimized for SPAs

🔧 Installation (Tampermonkey)

  1. Install Tampermonkey in your browser.
  2. Click “Create a new script”.
  3. Paste the RAW script from:
https://raw.githubusercontent.com/athee06/a11y-engine/main/a11y.user.js
  1. Save and refresh any website to enable.

🧠 Why This Project Exists

Many websites fail basic WCAG and ARIA guidelines, especially dynamic modern UIs.
This script provides an automated, lightweight accessibility layer to improve everyday browsing.

📜 License

MIT License

✨ Author

Athiban
GitHub: https://github.com/athee06