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Sleek, intuitive, and powerful front-end framework for faster and easier web development.
Explore Bootstrap docs »
Several quick start options are available:
git clone https://github.com/twbs/bootstrap.git
npm install bootstrap
yarn add [email protected]
composer require twbs/bootstrap:4.0.0
Install-Package bootstrap -Pre
Install-Package bootstrap.sass -Pre
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.css
│ ├── bootstrap.css.map
│ ├── bootstrap.min.css
│ ├── bootstrap.min.css.map
│ ├── 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
We provide compiled CSS and JS (bootstrap.*), as well as compiled and minified CSS and JS (bootstrap.min.*). CSS 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, but not jQuery.
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 Jekyll 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. Working on our search? Be sure to set debug: true in the _scripts.html include.
npm run test
npm run docs-serve
Learn more about using Jekyll by reading its documentation.
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.
Editor preferences are available in the editor config for easy use in common text editors. Read more and download plugins at http://editorconfig.org/.
Get updates on Bootstrap’s development and chat with the project maintainers and community members.
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’ll 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.
Code and documentation copyright 2011-2018 the Bootstrap Authors and Twitter, Inc. Code released under the MIT License. Docs released under Creative Commons.