Top 12 Open-Source Alternatives to Flexbox Grid

The top open-source alternatives to Flexbox Grid are Tailwind CSS, Bootstrap, 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
#Developer Tools #Design Tools #Website Design 868 social mentions
Bootstrap Landing Page
2

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
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
#CSS Framework #Development Tools #Design Tools 109 social mentions
Flex Layout Attribute Landing Page
4

FLA

Flex Layout Attribute

Layout helper based on CSS flexbox specification.
Pricing:
- Open Source
#Website Builder #Design Collaboration #CMS
Purecss Landing Page
5

Purecss

A set of small, responsive CSS modules that you can use in every web project.
Pricing:
- Open Source
#CSS Framework #Development Tools #Javascript UI Libraries 8 social mentions
DaisyUI Landing Page
6

DaisyUI

Free UI components plugin for Tailwind CSS
Pricing:
- Open Source
#Design Tools #User Experience #Developer Tools 137 social mentions
HTML KickStart Landing Page
7

HTM

HTML KickStart

HTML KickStart is a ultra–lean set of HTML5, CSS, and jQuery (javascript) files, layouts, and elements designed to give you a headstart and save you a lot of hours on your next web project.
Pricing:
- Open Source
#CSS Framework #Development Tools #Javascript UI Libraries
Materialize CSS Landing Page
8

Materialize CSS

A modern responsive front-end framework based on Material Design
Pricing:
- Open Source
#CSS Framework #Design Tools #Development Tools 25 social mentions
Visual Stories Landing Page
9

Visual Stories

No-code Web Stories builder, blogging and content marketing platform.
Pricing:
- Open Source
- Freemium
- Free Trial
- $15.0 / Monthly
#PWA Builder #Website Builder #CMS
UIKit Landing Page
10

UIKit

A lightweight and modular front-end framework for developing fast and powerful web interfaces
Pricing:
- Open Source
#CSS Framework #Development Tools #Design Tools 20 social mentions
Semantic UI Landing Page
11

Semantic UI

A UI Component library implemented using a set of specifications designed around natural language
Pricing:
- Open Source
#CSS Framework #Design Tools #Development Tools 17 social mentions
Foundation Landing Page
12

Foundation

The most advanced responsive front-end framework in the world
Pricing:
- Open Source
#CSS Framework #Design Tools #Development Tools 18 social mentions