Free and open source. Solve accessibility issues before they reach your customers.

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

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.

Transform your browsing experience with a powerful greyscale browser extension

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

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.