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Accessible Rich Internet Applications (WAI-ARIA)

The A11Y Project is a community-driven effort to make digital accessibility easier.

W3C WAI’s Web Accessibility Tutorials

an open-source, cross-platform toolbox for minimal-effort programming of eye tracking experiments

Open-source braille translator and back-translator.

Open Source Biometrics, Face Recognition

The U.S. Web Design System helps the federal government build fast, accessible, mobile-friendly websites.

A module for cross-platform control of the mouse and keyboard in python that is simple to install and use.

Open source API management platform

Web Experience Toolkit (WET): Open source code library for building innovative websites that are accessible, usable, interoperable, mobile-friendly and multilingual. This collaborative open source project is led by the Government of Canada.

An autocomplete component, built to be accessible.

The Colour Contrast Analyser (CCA) helps you determine the legibility of text and the contrast of visual elements, such as graphical controls and visual indicators.

Windows Input Simulator (C# SendInput Wrapper - Simulate Keyboard and Mouse)

A JavaScript implementation of the WebVTT specification

Color combination contrast tester

:speaker: Web Component wrapper to the Web Speech API, that allows you to do voice recognition and speech synthesis using Polymer

Aims to be the biggest checklist of inclusive design considerations ever

A CSS bookmarklet that puts pink error boxes (with messages in comic sans) everywhere you write bad HTML.

Fully customisable & accessible vector icons

This CSS file intends to warn developers about possible risks and mistakes that exist in HTML code. It can also be used to roughly evaluate a site's quality by simply including it as an external stylesheet.