unDalton

by Angela · Accessibility

FeaturedManifest V3 Free

View in Chrome Web Store Data as of 15 Oct 2026

Allows the user to modify the appearance of a web page using contrast, saturation and hue filters.

Users

−1 in 30 days

Rating

5.0 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#262K

#218K among extensions

Version

1.0

updated 30 Jan 2022

Users

monthly, 3 years

Latest, 15 Oct 2026: 4 usersMove the mouse over the chart for any month

Ratings count

monthly, 3 years

Latest, 15 Oct 2026: 1 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About unDalton

unDalton is an extension that aims to facilitate the viewing of all types of web pages for people with perceptual disorders and in particular color blindness. Thanks to unDalton, it is possible to adjust the hue, contrast and saturation of colors present on a web page to adapt it to each level of perception. Each of these adjustments is modulable with a slider. This extension was developed for a school project.