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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Open Source

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Product categories

CSS CSS Framework CSS Games CSS Tools Design Tools Developer Tools Development Tools Online Education Productivity Tech Web Frameworks Website Design

Summary

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

htmlreference.io Landing Page
1

htmlreference.io

Learn by example with this free web-based guide to HTML.
Pricing:
- Open Source
#Online Learning #Online Education #CSS 1 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
Flexbox Froggy Landing Page
3

Flexbox Froggy

A game for learning CSS flexbox
Pricing:
- Open Source
#Online Education #CSS Tools #Design Tools 264 social mentions
Bulma Landing Page
4

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 115 social mentions
Can I use Landing Page
5

Can I use

Compatibility tables for support of HTML5, CSS3, SVG and more in desktop and mobile browsers.
Pricing:
- Open Source
#Automated Testing #Website Testing #Browser Testing 382 social mentions
Responsively Landing Page
6

Responsively

Develop responsive web-apps 5x faster!
Pricing:
- Open Source
- Free
- Free Trial
#Website Builder #Website Design #Developer Tools 45 social mentions
Bootstrap 5 CheatSheet Landing Page
7

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
8

Ray.so

Create beautiful images of your code
Pricing:
- Open Source
#Productivity #Developer Tools #Web App 31 social mentions
Tailwind CSS Landing Page
9

Tailwind CSS

A utility-first CSS framework for rapidly building custom user interfaces.
Pricing:
- Open Source
#Development Tools #CSS Framework #UI 1013 social mentions
Foundation Landing Page
10

Foundation

The most advanced responsive front-end framework in the world
Pricing:
- Open Source
#Development Tools #CSS Framework #Developer Tools 21 social mentions
Bootstrap Landing Page
11

Bootstrap

Simple and flexible HTML, CSS, and JS for popular UI components and interactions
Pricing:
- Open Source
#CSS Framework #Web Frameworks #Developer Tools 362 social mentions
Sass Landing Page
12

Sass

Syntatically Awesome Style Sheets
Pricing:
- Open Source
#CSS Framework #Web Frameworks #Developer Tools 144 social mentions