Top 12 Open-Source Alternatives to CSS Reference

CSS Reference

Sleek and comprehensive online reference for CSS.

As CSS Reference is an open source project, you can find more open source alternatives and stats on LibHunt.

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Pricing:

Open Source

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Product categories

Browser Testing CSS CSS Framework CSS Games CSS Tools Design Tools Developer Tools Development Tools Productivity Tech Web Frameworks Website Design

Summary

The top open-source alternatives to CSS Reference are Flexbox Froggy, CSS Grid Garden, and Bulma. 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.

Flexbox Froggy Landing Page
1

Flexbox Froggy

A game for learning CSS flexbox
Pricing:
- Open Source
#Online Education #CSS Tools #Design Tools 268 social mentions
CSS Grid Garden Landing Page
2

CSS Grid Garden

A game for learning CSS grid layout
Pricing:
- Open Source
#Other Education Tech #CSS Tools #Design Tools 103 social mentions
Bulma Landing Page
3

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
#Development Tools #CSS Framework #Developer Tools 118 social mentions
Can I use Landing Page
4

Can I use

Compatibility tables for support of HTML5, CSS3, SVG and more in desktop and mobile browsers.
Pricing:
- Open Source
#Website Testing #Browser Testing #CSS 412 social mentions
Responsively Landing Page
5

Responsively

Develop responsive web-apps 5x faster!
Pricing:
- Open Source
- Free
- Free Trial
#Website Builder #Website Design #Developer Tools 46 social mentions
Bootstrap 5 CheatSheet Landing Page
6

Bootstrap 5 CheatSheet

The only Bootstrap 5 CheatSheet you will ever need.
Pricing:
- Open Source
#Productivity #Web Frameworks #Developer Tools 7 social mentions
Ray.so Landing Page
7

Ray.so

Create beautiful images of your code
Pricing:
- Open Source
#Productivity #Developer Tools #Web App 34 social mentions
Tailwind CSS Landing Page
8

Tailwind CSS

A utility-first CSS framework for rapidly building custom user interfaces.
Pricing:
- Open Source
#Development Tools #CSS Framework #UI 1062 social mentions
Foundation Landing Page
9

Foundation

The most advanced responsive front-end framework in the world
Pricing:
- Open Source
#Development Tools #CSS Framework #Developer Tools 22 social mentions
Bootstrap Landing Page
10

Bootstrap

Simple and flexible HTML, CSS, and JS for popular UI components and interactions
Pricing:
- Open Source
#CSS Framework #Web Frameworks #Developer Tools 370 social mentions
Sass Landing Page
11

Sass

Syntatically Awesome Style Sheets
Pricing:
- Open Source
#CSS Framework #Web Frameworks #Developer Tools 149 social mentions
DevDocs Landing Page
12

DevDocs

Open source API documentation browser with instant fuzzy search, offline mode, keyboard shortcuts, and more
Pricing:
- Open Source
#Productivity #Software Development #Developer Tools 132 social mentions