High Contrast

High Contrast is a first-party accessibility extension published by Google Ireland under the name chrome-a11y-extensions. It lets you browse with colour filters that make text easier to read. By default, it inverts a page so black becomes white and white becomes black, while leaving photos alone, and you can choose between several filters.

It is simple to use. A toolbar button turns the effect on or off, you can save different settings for individual sites, and a keyboard shortcut changes settings as you browse. The listing says filters avoid the breakage that colour rewriting causes. It shows about 300,000 users and a version dated 8 December 2025.

It has limits. It is a visual filter, not a reader: there is no text to speech and no font control. The 3.5 rating from 5,900 reviews is middling, we could not find public source code, and Chrome's own pages such as the New Tab page and Settings are unaffected by design. Only a Chrome Web Store listing exists, so there is no Firefox or Safari version we could confirm. It is a sensible, free pick for people with low vision or glare sensitivity who want a Google-made tool; for dark themes, see the dark mode category.