Software Alternatives, Accelerators & Startups

🎨 CSS Framework

A collection of pre-prepared libraries that can be used as a basis for designing websites, providing a consistent approach to styling with CSS, often including predefined grid systems and UI components.

The best CSS Framework Products based on votes, our collection of reviews, verified products and a total of 1,374 factors.

Best CSS Framework Products in 2025

  1. 327

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

    Open Source

    /bootstrap-alternatives
  2. 297

    A utility-first CSS framework for rapidly building custom user interfaces.

    Open Source

    /tailwind-css-alternatives
  3. Transforming urban planning with smarter designs, data-driven decisions, and sustainable solutions for the cities of tomorrow.

    Try for free paid Free Trial $60.0 / Monthly (Individual use, self employed, 20 projects annually )

    Try for free
  4. 239

    Bulma is an open source CSS framework based on Flexbox and built with Sass. It's 100% responsive, fully modular, and available for free.

    Open Source

    /bulma-alternatives
  5. 224

    A modern responsive front-end framework based on Material Design

    Open Source

    /materialize-css-alternatives
  6. 174

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

    Open Source

    /uikit-alternatives
  7. 190

    The most advanced responsive front-end framework in the world

    Open Source

    /foundation-alternatives
  8. 178

    A UI Component library implemented using a set of specifications designed around natural language

    Open Source

    /semantic-ui-alternatives
  9. 132

    A CSS Framework and a Set of React Components that Implement Google's Material Design

    Open Source free

    /material-ui-alternatives
  10. 76

    Syntatically Awesome Style Sheets

    Open Source

    /sass-alternatives
  11. 129

    A Beautiful Boilerplate for Responsive, Mobile-Friendly Development

    Open Source

    /skeleton-css-alternatives
  12. 119

    A set of small, responsive CSS modules that you can use in every web project.

    Open Source

    /purecss-alternatives
  13. 58

    Simple, modular and accessible UI components for your React applications.

    Open Source

    /chakra-ui-alternatives
  14. 60

    Increase code readability. Add vendor prefixes to CSS rules using values from Can I Use. Autoprefixer will use the data based on current browser popularity and property support to apply prefixes for you.

    Open Source

    /postcss-alternatives

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