Top 12 Open-Source Alternatives to Stylus

The top open-source alternatives to Stylus are Sass, PostCSS, and Dark Reader. One of the criteria for ordering this list is the number of mentions that products have on reliable external sources. You can suggest additional sources through the form here.

Sass Landing Page
1

Sass

Syntatically Awesome Style Sheets
Pricing:
- Open Source
#Developer Tools #Design Tools #Javascript UI Libraries 131 social mentions
PostCSS Landing Page
2

PostCSS

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.
Pricing:
- Open Source
#Developer Tools #Design Tools #CSS Framework 39 social mentions
Dark Reader Landing Page
3

Dark Reader

Reduce eye strain in your browser with this extension that provides a dark theme for browsing.
Pricing:
- Open Source
#Browser Extension #Dark Mode #Developer Tools 183 social mentions
Stylebot Landing Page
4

Stylebot

Change the appearance of websites instantly. Preview and install styles created by other users on stylebot.me
Pricing:
- Open Source
#Browser Extension #Developer Tools #Dark Mode 14 social mentions
Stylecow Landing Page
5

Stylecow

CSS processor to fix your css code and make it compatible with all browsers
Pricing:
- Open Source
#Developer Tools #Design Tools #CSS Framework
Stylus - User Styles Manager Landing Page
6

Stylus - User Styles Manager

Stylus is a userstyles editor and manager based on the source code of Stylish version 1.5.2.
Pricing:
- Open Source
#Browser Extension #Developer Tools #Dark Mode 47 social mentions
styled-components Landing Page
7

styled-components

styled-components is a visual primitive for the component age that also helps the user to use the ES6 and CSS to style apps.
Pricing:
- Open Source
#Developer Tools #Design Tools #Javascript UI Libraries 154 social mentions
Tailwind CSS Landing Page
8

Tailwind CSS

A utility-first CSS framework for rapidly building custom user interfaces.
Pricing:
- Open Source
#Developer Tools #Design Tools #Website Design 867 social mentions
Bootstrap Landing Page
9

Bootstrap

Simple and flexible HTML, CSS, and JS for popular UI components and interactions
Pricing:
- Open Source
#CSS Framework #Development Tools #Design Tools 326 social mentions
midnight-lizard.org
10

Midnight Lizard

Accessible color schemes for all websites
Pricing:
- Open Source
#Browser Extension #Dark Mode #Browsing Experience
Purgecss Landing Page
11

Purgecss

Easily remove unused CSS
Pricing:
- Open Source
#Developer Tools #Development #Design Tools 33 social mentions
Flagsmith Landing Page
12

Flagsmith

Flagsmith lets you manage feature flags and remote config across web, mobile and server side applications. Deliver true Continuous Integration. Get builds out faster. Control who has access to new features. We're Open Source.
Pricing:
- Open Source
- Freemium
- Free Trial
#Feature Flags #Developer Tools #Configuration Management 13 social mentions