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 1,376 factors.

Best CSS Framework Products in 2025

  1. 319

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

    Key Bootstrap features:

    Responsive Design Pre-designed Components Cross-browser Compatibility Extensive Documentation

    Open Source

    /bootstrap-alternatives
  2. 300

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

    Key Tailwind CSS features:

    Utility-First Approach Customization Consistent Design Responsive Design

    Open Source

    /tailwind-css-alternatives
  3. Kimp is an unlimited design company, specializing in graphic design (including print and digital designs, custom illustrations, landing page designs and email designs) and video design.

    Key Kimp features:

    Easy to Set-up and use Free Trial

    Try for free Free Trial $599.0 / Monthly

    Try for free
  4. 238

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

    Key Bulma features:

    Simple and Elegant Design Responsive Layouts Ease of Use BEM Methodology

    Open Source

    /bulma-alternatives
  5. 226

    A modern responsive front-end framework based on Material Design

    Key Materialize CSS features:

    Responsive Design Material Design Component Variety Customization

    Open Source

    /materialize-css-alternatives
  6. 178

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

    Key UIKit features:

    Modularity Extensive Documentation Responsive Design Customization

    Open Source

    /uikit-alternatives
  7. 180

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

    Key Semantic UI features:

    Intuitive Class Names Customizability Comprehensive Components Flexibility

    Open Source

    /semantic-ui-alternatives
  8. 189

    The most advanced responsive front-end framework in the world

    Key Foundation features:

    Customizability Responsive Design Semantic Code Range of Components

    Open Source

    /foundation-alternatives
  9. 135

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

    Key Material UI features:

    Comprehensive Component Library Customizability Active Community and Support Improved Productivity

    Open Source free

    /material-ui-alternatives
  10. 77

    Syntatically Awesome Style Sheets

    Key Sass features:

    Nesting Variables Mixins Partials and Import

    Open Source

    /sass-alternatives
  11. 127

    A Beautiful Boilerplate for Responsive, Mobile-Friendly Development

    Key Skeleton CSS features:

    Lightweight Simplicity Responsive Grid Clean Design

    Open Source

    /skeleton-css-alternatives
  12. 119

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

    Key Purecss features:

    Lightweight Responsive Modular Easy Integration

    Open Source

    /purecss-alternatives
  13. 62

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

    Key Chakra UI features:

    Component Library Theming Accessibility Responsive Design

    Open Source

    /chakra-ui-alternatives
  14. 57

    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.

    Key PostCSS features:

    Modularity Performance Large ecosystem Active community

    Open Source

    /postcss-alternatives

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