Sleek, intuitive, and powerful front-end framework for faster and easier web development.
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Our default branch is for development of our upcoming Bootstrap 5 release. Head to the [
branch](https://github.com/twbs/bootstrap/tree/v4-dev) 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 [email protected]
yarn add [email protected]
composer require twbs/bootstrap:5.0.0
Read the Getting started page for information on the framework contents, templates and 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. You'll see something like this:
bootstrap/ └── dist/ ├── css/ │ ├── bootstrap-grid.css │ ├── bootstrap-grid.css.map │ ├── bootstrap-grid.min.css │ ├── bootstrap-grid.min.css.map │ ├── bootstrap-reboot.css │ ├── bootstrap-reboot.css.map │ ├── bootstrap-reboot.min.css │ ├── bootstrap-reboot.min.css.map │ ├── bootstrap-utilities.css │ ├── bootstrap-utilities.css.map │ ├── bootstrap-utilities.min.css │ ├── bootstrap-utilities.min.css.map │ ├── bootstrap.css │ ├── bootstrap.css.map │ ├── bootstrap.min.css │ └── bootstrap.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 (
), as well as compiled and minified CSS and JS (
). source maps (
) are available for use with certain browsers' developer tools. Bundled JS files (
) include Popper.
Documentation search is powered by Algolia's DocSearch. Working on our search? Be sure to set
to install the Node.js dependencies, including Hugo (the site builder).
npm run test
in the command line.
npm run docs-serve
in your browser, and voilà.
Learn more about using Hugo by reading its documentation.
You can find all our previous releases docs on https://v5.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.
Get updates on Bootstrap's development and chat with the project maintainers and community members.
server, in the
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.
Thanks to BrowserStack for providing the infrastructure that allows us to test in real browsers!
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]