Top 12 Open-Source Alternatives to Bootstrap

Bootstrap

Simple and flexible HTML, CSS, and JS for popular UI components and interactions.

As Bootstrap 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

CSS Framework CSS Tools Design Tools Developer Tools Development Tools JS Library JavaScript Framework Javascript UI Libraries React React Components UI Website Design

Summary

The top open-source alternatives to Bootstrap are Tailwind CSS, Materialize CSS, 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.

Tailwind CSS Landing Page
1

Tailwind CSS

A utility-first CSS framework for rapidly building custom user interfaces.
Pricing:
- Open Source
#Development Tools #CSS Framework #UI 1016 social mentions
Materialize CSS Landing Page
2

Materialize CSS

A modern responsive front-end framework based on Material Design
Pricing:
- Open Source
#Development Tools #CSS Framework #Developer Tools 26 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 115 social mentions
Foundation Landing Page
4

Foundation

The most advanced responsive front-end framework in the world
Pricing:
- Open Source
#Development Tools #CSS Framework #Developer Tools 21 social mentions
Semantic UI Landing Page
5

Semantic UI

A UI Component library implemented using a set of specifications designed around natural language
Pricing:
- Open Source
#Development Tools #CSS Framework #Developer Tools 19 social mentions
UIKit Landing Page
6

UIKit

A lightweight and modular front-end framework for developing fast and powerful web interfaces
Pricing:
- Open Source
#Development Tools #CSS Framework #Developer Tools 22 social mentions
Material UI Landing Page
7

Material UI

A CSS Framework and a Set of React Components that Implement Google's Material Design
Pricing:
- Open Source
- Free
#Development Tools #CSS Framework #Developer Tools 75 social mentions
React Landing Page
8

React

A JavaScript library for building user interfaces
Pricing:
- Open Source
#Javascript UI Libraries #JS Library #JavaScript Framework 814 social mentions
Skeleton CSS Landing Page
9

Skeleton CSS

A Beautiful Boilerplate for Responsive, Mobile-Friendly Development
Pricing:
- Open Source
#Development Tools #CSS Framework #Website Design 17 social mentions
Ant Design Landing Page
10

Ant Design

An enterprise-class UI design language and React implementation with a set of high-quality React components, one of best React UI library for enterprises
Pricing:
- Open Source
#Development Tools #CSS Framework #UI 107 social mentions
Sass Landing Page
11

Sass

Syntatically Awesome Style Sheets
Pricing:
- Open Source
#CSS Framework #Web Frameworks #Developer Tools 145 social mentions
Purecss Landing Page
12

Purecss

A set of small, responsive CSS modules that you can use in every web project.
Pricing:
- Open Source
#Development Tools #CSS Framework #Javascript UI Libraries 9 social mentions

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Bootstrap discussion

Stan Bright
· about 2 years ago
· Reply

Bootstrap is a great framework. I used to use it with every project. However, at some point it was very difficult to customize. So I slowly migrated to Bulma. Nowadays... I use mostly Tailwind.

Note: the last version that I've used is 3.x, so things might have changed since then. I just checked and the latest version is 5.x.