Top 12 Open-Source Alternatives to Prepros

Product categories

Browser Extension CSS CSS Framework CSS Tools Code Analysis Code Coverage Code Review Dark Mode Design Tools Developer Tools Development Tools Website Design

Summary

The top open-source alternatives to Prepros are Scout-App, PostCSS, and Tailwind CSS. 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.

Scout-App Landing Page
1

Scout-App

Process Sass files into CSS without any knowledge of the command line.
Pricing:
- Open Source
#Developer Tools #Design Tools #Image Optimisation 3 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
Tailwind CSS Landing Page
3

Tailwind CSS

A utility-first CSS framework for rapidly building custom user interfaces.
Pricing:
- Open Source
#Developer Tools #Design Tools #Website Design 868 social mentions
stylelint Landing Page
4

stylelint

stylelint is a modern CSS linter
Pricing:
- Open Source
#Developer Tools #Code Analysis #Code Coverage 25 social mentions
Sass Landing Page
5

Sass

Syntatically Awesome Style Sheets
Pricing:
- Open Source
#Developer Tools #Design Tools #Javascript UI Libraries 131 social mentions
Compass CSS Landing Page
6

Compass CSS

Compass is an open-source CSS Authoring Framework.
Pricing:
- Open Source
#Developer Tools #CSS #CSS Tools 3 social mentions
cssnano Landing Page
7

cssnano

A modular minifier, based on the PostCSS ecosystem. Created by @ben_eb.
Pricing:
- Open Source
#Developer Tools #Design Tools #CSS Framework 4 social mentions
Bulma Landing Page
8

Bulma

Bulma is an open source CSS framework based on Flexbox and built with Sass. It's 100% responsive, fully modular, and available for free.
Pricing:
- Open Source
#CSS Framework #Development Tools #Design Tools 109 social mentions
Prettier Landing Page
9

Prettier

An opinionated code formatter
Pricing:
- Open Source
#Developer Tools #Code Analysis #JavaScript Framework 256 social mentions
Stylus Landing Page
10

Stylus

EXPRESSIVE, DYNAMIC, ROBUST CSS
Pricing:
- Open Source
#Developer Tools #Browser Extension #Dark Mode 11 social mentions
Visual Studio Code Landing Page
11

Visual Studio Code

Build and debug modern web and cloud applications, by Microsoft
Pricing:
- Open Source
#Text Editors #IDE #Software Development 1016 social mentions
Purgecss Landing Page
12

Purgecss

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