Bootstrap and Foundation are both front-end frameworks that help developers build responsive websites quickly. They provide pre-built components like buttons, forms, and navigation bars that make it easier to create professional-looking websites without starting from scratch. While Bootstrap is known for its ease of use and extensive documentation, Foundation offers more flexibility for customization.
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A modern CSS framework based on Flexbox. It's like Bootstrap but simpler to learn and doesn't include any JavaScript. Just clean, readable CSS classes that make creating beautiful websites easy.
Great alternative to Bootstrap for beginners because it's easier to understand and has excellent documentation. It's lighter weight than Bootstrap but still gives you all the basic components you need.
CSS FrameworkA utility-first CSS framework that lets you build designs by combining small styling classes. Instead of pre-built components, it gives you helpful CSS classes that you can mix together to create your own designs.
Like Bootstrap, it helps you build websites quickly, but gives you more control over the design. It's becoming very popular because it's easier to customize and results in smaller file sizes. Perfect for modern web projects.
CSS FrameworkA CSS framework based on Google's Material Design. Comes with ready-to-use components that follow Google's design guidelines, making your websites look modern and professional.
If you like Bootstrap but want your site to have a Google-like feel, this is perfect. It has similar features to Bootstrap but with a distinct Material Design style that many users are familiar with.
CSS FrameworkA development framework that helps create beautiful, responsive layouts using human-friendly HTML. Uses simple and clear class names that make sense even to beginners.
Like Foundation and Bootstrap, it provides a complete solution for building websites, but with class names that are easier to understand (like 'ui menu' instead of technical class names). Great for teams who want their code to be more readable.
CSS FrameworkA lightweight and modular front-end framework for developing fast and powerful web interfaces. Includes a comprehensive collection of HTML, CSS, and JS components that work great together.
Similar to Foundation in terms of flexibility but with a more modern feel. It's great for developers who want something powerful but don't want to feel locked into a specific design style.
CSS FrameworkOur default branch is for development of our Bootstrap 5 release. Head to the v4-dev
branch to view the readme, documentation, and source code for Bootstrap 4.
Several quick start options are available:
git clone https://github.com/twbs/bootstrap.git
npm install bootstrap@v5.3.5
yarn add bootstrap@v5.3.5
composer require twbs/bootstrap:5.3.5
Install-Package bootstrap
Sass: Install-Package bootstrap.sass
Read the Getting started page for information on the framework contents, templates, examples, and more.
Within the download you'll find the following directories and files, logically grouping common assets and providing both compiled and minified variations.
<details> <summary>Download contents</summary></details>bootstrap/ ├── css/ │ ├── bootstrap-grid.css │ ├── bootstrap-grid.css.map │ ├── bootstrap-grid.min.css │ ├── bootstrap-grid.min.css.map │ ├── bootstrap-grid.rtl.css │ ├── bootstrap-grid.rtl.css.map │ ├── bootstrap-grid.rtl.min.css │ ├── bootstrap-grid.rtl.min.css.map │ ├── bootstrap-reboot.css │ ├── bootstrap-reboot.css.map │ ├── bootstrap-reboot.min.css │ ├── bootstrap-reboot.min.css.map │ ├── bootstrap-reboot.rtl.css │ ├── bootstrap-reboot.rtl.css.map │ ├── bootstrap-reboot.rtl.min.css │ ├── bootstrap-reboot.rtl.min.css.map │ ├── bootstrap-utilities.css │ ├── bootstrap-utilities.css.map │ ├── bootstrap-utilities.min.css │ ├── bootstrap-utilities.min.css.map │ ├── bootstrap-utilities.rtl.css │ ├── bootstrap-utilities.rtl.css.map │ ├── bootstrap-utilities.rtl.min.css │ ├── bootstrap-utilities.rtl.min.css.map │ ├── bootstrap.css │ ├── bootstrap.css.map │ ├── bootstrap.min.css │ ├── bootstrap.min.css.map │ ├── bootstrap.rtl.css │ ├── bootstrap.rtl.css.map │ ├── bootstrap.rtl.min.css │ └── bootstrap.rtl.min.css.map └── js/ ├── bootstrap.bundle.js ├── bootstrap.bundle.js.map ├── bootstrap.bundle.min.js ├── bootstrap.bundle.min.js.map ├── bootstrap.esm.js ├── bootstrap.esm.js.map ├── bootstrap.esm.min.js ├── bootstrap.esm.min.js.map ├── bootstrap.js ├── bootstrap.js.map ├── bootstrap.min.js └── bootstrap.min.js.map
We provide compiled CSS and JS (bootstrap.*
), as well as compiled and minified CSS and JS (bootstrap.min.*
). Source maps (bootstrap.*.map
) are available for use with certain browsers' developer tools. Bundled JS files (bootstrap.bundle.js
and minified bootstrap.bundle.min.js
) include Popper.
Have a bug or a feature request? Please first read the issue guidelines and search for existing and closed issues. If your problem or idea is not addressed yet, please open a new issue.
Bootstrap's documentation, included in this repo in the root directory, is built with Hugo and publicly hosted on GitHub Pages at https://getbootstrap.com/. The docs may also be run locally.
Documentation search is powered by Algolia's DocSearch.
npm install
to install the Node.js dependencies, including Hugo (the site builder).npm run test
(or a specific npm script) to rebuild distributed CSS and JavaScript files, as well as our docs assets./bootstrap
directory, run npm run docs-serve
in the command line.http://localhost:9001/
in your browser, and voilà.Learn more about using Hugo by reading its documentation.
You can find all our previous releases docs on https://getbootstrap.com/docs/versions/.
Previous releases and their documentation are also available for download.
Please read through our contributing guidelines. Included are directions for opening issues, coding standards, and notes on development.
Moreover, if your pull request contains JavaScript patches or features, you must include relevant unit tests. All HTML and CSS should conform to the Code Guide, maintained by Mark Otto.
Editor preferences are available in the editor config for easy use in common text editors. Read more and download plugins at https://editorconfig.org/.
Get updates on Bootstrap's development and chat with the project maintainers and community members.
irc.libera.chat
server, in the #bootstrap
channel.bootstrap-5
).bootstrap
on packages which modify or add to the functionality of Bootstrap when distributing through npm or similar delivery mechanisms for maximum discoverability.For transparency into our release cycle and in striving to maintain backward compatibility, Bootstrap is maintained under the Semantic Versioning guidelines. Sometimes we screw up, but we adhere to those rules whenever possible.
See the Releases section of our GitHub project for changelogs for each release version of Bootstrap. Release announcement posts on the official Bootstrap blog contain summaries of the most noteworthy changes made in each release.
Mark Otto
Jacob Thornton
Thanks to BrowserStack for providing the infrastructure that allows us to test in real browsers!
<a href="https://www.netlify.com/"> <img src="https://www.netlify.com/v3/img/components/full-logo-light.svg" alt="Netlify" width="147" height="40"> </a>Thanks to Netlify for providing us with Deploy Previews!
Support this project by becoming a sponsor. Your logo will show up here with a link to your website. [Become a sponsor]
Thank you to all our backers! 🙏 [Become a backer]
Code and documentation copyright 2011-2025 the Bootstrap Authors. Code released under the MIT License. Docs released under Creative Commons.
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