xStyle

A user styles manager for the Web

Cascadea

Remix the web. exclusively for macOS and Safari.

Makes every page (or only pages that you want) to have light text on dark background.

A global dark theme for the web

It is a universal night mode for the entire Internet.

Reduce eye strain in your browser with this extension that provides a dark theme for browsing.

An open source repository of design principles and methods

Styles and skins for all popular sites in the web

Customize the way a web page displays or behaves, by using small bits of JavaScript.

Modify requests, inject JavaScript and CSS into pages.

Accessible color schemes for all websites

Owl is a light-weight Firefox add-on that gives webpages a dark background and dimmed colors.

More control over macOS Night Shift

Build beautiful React styled components visually í ½í²í ¼í¼

Stylus is a userstyles editor and manager based on the source code of Stylish version 1.5.2.

Greasemonkey compatible script manager.

Violentmonkey is a userscript manager to support running userscripts in web pages.

Dynamically load stylesheets in Firefox from plaintext files in your profile.