Web Accessibility Resources & Tools
This guide provides the essential tools and links for evaluating and improving digital accessibility.
Essential Browsers
- Google Chrome – The primary environment for accessibility testing and extension support.
- Mozilla Firefox – Essential for cross-browser accessibility verification.
Evaluation & Simulation Tools
- WebAIM Contrast Checker – Web-based tool to check color contrast ratios.
- Accessible Colors – Finds the closest accessible color combination when a contrast check fails.
- WAVE (Web Accessibility Evaluation Tool) – Identifies accessibility errors visually on the page.
- Stark Accessibility Checker – Contrast checker and vision simulator for 9 different conditions.
- Silktide Disability Simulator – Simulates dyslexia, cataracts, and various sight impairments.
Advanced: Automated Scripting (Tampermonkey)
For frequent reviews, use Tampermonkey to run a suite of “Auto-A11y” tools on every website automatically.
Installation Steps
- Install Tampermonkey: Chrome Extension - Tampermonkey.
- Enable Developer Mode: In Chrome Extension settings, toggle Developer Mode to ON.
- Allow User Scripts: In Tampermonkey settings, ensure Allow User Scripts is ON.
- Install the main Script: AutoA11yTools Userscript.
- Install extra scripts: Other scripts can be found in Wyatt’s GitHub Repository. Just select the file you want to install, then click the “Raw” button near the upper-right
Screen Readers & Reading Aids
- NVDA (Windows) – A free, high-performance screen reader.
Document & Learning Resources
- PAC (PDF Accessibility Checker) – The global standard for validating PDF accessibility.