Use TPGi's free colour contrast checker to optimize your content - including text and visual elements - for individuals with color-blindness or low vision impairments.

aDesigner is a disability simulator that helps designers ensure that their content and applications are accessible and usable by the visually impaired.

Colour contrast checker to check for accessibility issues.

TPGi’s on-demand single-page accessibility testing tool. Use it to remediate failures surfaced in ARC Monitoring scans or as a QA tool.

Robust, efficient and accurate accessibility testing tools for all Built on the world’s most popular accessibility testing library, axe-core. Deque’s suite of axe tools offers full coverage for your testing and compliance needs.

An open-source, automated tool to help you improve the quality of web pages. You can run it on any web page, public or requiring authentication.