PurePath - AI Accessibility Assistent (Chrome Extension)

In developer mode scans the entire site
it shows 13 % of this site only accessible by the blind and partially blind people
Ai generates alternative text for images as a descriptive of that image
spotting color contrast issues and suggesting the developers to change them
user mode has three main color modes for color blinds and text highlight mode
Protanopia mode
Tritanopia mode
Deuteranopia mode

We created PurePath, an AI-powered accessibility extension, after realizing how many people—especially those with color blindness and visual impairments—struggle to read and navigate modern websites. Most websites still fail basic WCAG standards, and we wanted to build a tool that helps both developers fix accessibility issues and users instantly view a clearer, more readable page.

Throughout this project, we learned in depth about WCAG guidelines, contrast ratios, DOM inspection, accessibility testing, and how various types of color blindness affect visual perception. We also gained hands-on experience using AI to generate alt text, suggest compliant color corrections, and detect visual issues more accurately.

We built PurePath as a dual-mode Chrome extension using Manifest V3. In Developer Mode, the tool scans webpages for low contrast, missing alt text, and visibility issues, while providing AI-powered color and alt-text suggestions. In User Mode, it applies real-time accessibility improvements such as high contrast, large text, text highlighting, and color-blind-safe filters for Protanopia, Deuteranopia, and Tritanopia. All enhancements run fully client-side to ensure privacy and seamless performance.

During development, we faced several challenges, including filtering out false positives, detecting all color formats consistently, generating realistic color-blind transformations, and keeping the extension interface accessible to the users it aims to serve. These challenges helped us understand the depth of accessibility problems on the web and pushed us to design a more inclusive solution.