Simple. Built on open source. The responsive front-end library based on Google's Material Design.




Bootstrap is not available as a web app but there are plenty of alternatives that runs in the browser with similar functionality. The best Online alternative is Materialize, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 100 alternatives to Bootstrap and loads of them are available as a web app so hopefully you can find a suitable replacement. Other interesting Online alternatives to Bootstrap are Bulma, UIkit, Material UI and Fomantic UI.
Simple. Built on open source. The responsive front-end library based on Google's Material Design.








A lightweight and modular front-end framework for developing fast and powerful web interfaces.


Material UI is an open-source React component library that implements Google's Material Design. It's comprehensive and can be used in production out of the box.

Fomantic UI is a modern front-end development framework that helps create beautiful, responsive layouts using human-friendly HTML.




Free framework offering 400+ UI elements, 600+ icons, numerous CSS animations, responsive design, SASS files, customizable templates, comprehensive tutorials, active community, detailed documentation, and support for jQuery, Angular, React, and Vue.




Element, a Vue 2.0 based component library for developers, designers and product managers.
Unlike some component libraries, Reactstrap does not embed its own styles, and instead depends on the Bootstrap CSS framework for its styles and theme. This allows you to have consistent styles across your React-based components and static parts of your site, and allows you to...



GroundworkCSS is a 100% free and open source responsive HTML5, CSS and JavaScript Framework.



Material Components for the web (MDC Web) help developers execute Material Design. Developed by a core team of engineers and UX designers at Google, these components enable a reliable development workflow to build beautiful and functional web projects.
Carefully crafted, easy to customize, fully responsive UI Components, Templates and Tools for your Tailwind CSS based projects.

Materialize not only provides grid system but has amazing colors, and features following the material design guidelines