Best Stylus Alternatives & Competitors in 2025

Syntatically Awesome Style Sheets

Open Source

Increase code readability. Add vendor prefixes to CSS rules using values from Can I Use. Autoprefixer will use the data based on current browser popularity and property support to apply prefixes for you.

Open Source

Kimp is an unlimited design company, specializing in graphic design (including print and digital designs, custom illustrations, landing page designs and email designs) and video design.

Try for free Free Trial $599.0 / Monthly

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

Open Source

Less extends CSS with dynamic behavior such as variables, mixins, operations and functions. Less runs on both the server-side (with Node. js and Rhino) or client-side (modern browsers only).

Change the appearance of websites instantly. Preview and install styles created by other users on stylebot.me

Open Source

Amino is a Chrome browser extension for customizing web page presentation with user CSS.

freemium $2.99 / Monthly

Use tomorrow’s CSS syntax, today.

CSS processor to fix your css code and make it compatible with all browsers

Open Source

A user style manager for Pale Moon, Basilisk, Interlink, SeaMonkey, and other Mozilla-based software. Install styles from userstyles.org to change how web pages and the application look.

A user styles manager for the Web

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

Open Source

Remix the web. exclusively for macOS and Safari.

Styles and skins for all popular sites in the web