Top 12 Open-Source Alternatives to Flat UI Pro

Flat UI Pro

Flat UI Pro is Twitter Bootstrap Design Framework that includes HTML and PSD versions. Flat UI Pro contains a huge number of basic components, themes, icons and glyphs.

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Product categories

CSS Framework CSS Tools Design Tools Developer Tools Development Tools UI Web Frameworks Website Design

Summary

The top open-source alternatives to Flat UI Pro are Bootstrap, Tailwind CSS, and Materialize 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.

Bootstrap Landing Page
1

Bootstrap

Simple and flexible HTML, CSS, and JS for popular UI components and interactions
Pricing:
- Open Source
#CSS Framework #Web Frameworks #Developer Tools 363 social mentions
Tailwind CSS Landing Page
2

Tailwind CSS

A utility-first CSS framework for rapidly building custom user interfaces.
Pricing:
- Open Source
#Development Tools #CSS Framework #UI 1015 social mentions
Materialize CSS Landing Page
3

Materialize CSS

A modern responsive front-end framework based on Material Design
Pricing:
- Open Source
#Development Tools #CSS Framework #Developer Tools 26 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
UIKit Landing Page
5

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
Semantic UI Landing Page
6

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
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
MUI Landing Page
8

MUI

MUI is a lightweight HTML/CSS/JS framework that follows Google's Material Design guidelines
Pricing:
- Open Source
#Development Tools #CSS Framework #Developer Tools
HTML5 Boilerplate Landing Page
9

HTML5 Boilerplate

A rock-solid default for HTML5 awesome.
Pricing:
- Open Source
#CSS Framework #Developer Tools #CSS Tools 18 social mentions
HTML KickStart Landing Page
10

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
#Development Tools #CSS Framework #Developer Tools
Material Design Lite Landing Page
11

Material Design Lite

Material Design Lite Components in HTML/CSS/JS
Pricing:
- Open Source
#Development Tools #CSS Framework #Developer Tools 4 social mentions
960 Grid System Landing Page
12

960 Grid System

The 960 Grid System is an effort to streamline web development workflow by providing commonly used...
Pricing:
- Open Source
#Development Tools #CSS Framework #Developer Tools 2 social mentions