The best open source alternative to metro-bootstrap is Bootstrap. If that doesn't suit you, our users have ranked more than 25 alternatives to metro-bootstrap and many of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to metro-bootstrap are Tailwind CSS, Material UI, Materialize and Purecss.
Bootstrap is a open-source collection of tools for creating browser sites and applications. It contains HTML and CSS-based design templates for typography, forms, buttons, charts, navigation and other interface components, as well as optional JavaScript extensions.
Tailwind is different from frameworks like Bootstrap, Foundation, or Bulma in that it's not a UI kit.
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.
Simple. Built on open source. The responsive front-end library based on Google's Material Design.
Element, a Vue 2.0 based component library for developers, designers and product managers.
Skeleton is a small collection of CSS & JS files that can help you rapidly develop sites that look beautiful at any size, be it a 17" laptop screen or an iPhone. Skeleton is built on three core principles:
Spectre.css is a lightweight, responsive and modern CSS framework for faster and extensible development.
GroundworkCSS is a 100% free and open source responsive HTML5, CSS and JavaScript Framework.
Responsable is a responsive HTML CSS LESS SCSS framework with clean markup, normalized CSS, and responsive images. It allows for nested columns for easy grid nesting and customization, and provides base styles for forms, tables, and typography for faster startup on your projects.
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