The most popular front-end framework for developing responsive, mobile first projects on the web.
- dev-master / 3.3.x-dev
Sleek, intuitive, and powerful front-end framework for faster and easier web development.
Visit Bootstrap »
- Quick start
- What's included
- Bugs and feature requests
- Copyright and license
Several quick start options are available:
- Download the latest release.
- Clone the repo:
git clone https://github.com/twbs/bootstrap.git
- Install with npm:
npm install email@example.com
- Install with yarn:
yarn add firstname.lastname@example.org
- Install with Composer:
composer require twbs/bootstrap:4.0.0-alpha.6
- Install with Bower:
bower install bootstrap#v4.0.0-alpha.6
- Install with NuGet: CSS:
Install-Package bootstrap -PreSass:
Install-Package bootstrap.sass -Pre(
-Preis only required until Bootstrap v4 has a stable release).
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 │ ├── bootstrap.css.map │ ├── bootstrap.min.css │ └── bootstrap.min.css.map └── js/ ├── bootstrap.js └── bootstrap.min.js
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.
- Run through the tooling setup to install Jekyll (the site builder) and other Ruby dependencies with
- From the root
bundle exec jekyll servein the command line.
- Open http://localhost:9001 in your browser, and voilà.
Learn more about using Jekyll by reading its documentation.
Documentation for v2.3.2 has been made available for the time being at https://getbootstrap.com/2.3.2/ while folks transition to Bootstrap 3.
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.
- Follow @getbootstrap on Twitter.
- Read and subscribe to The Official Bootstrap Blog.
- Join the official Slack room.
- Chat with fellow Bootstrappers in IRC. On the
irc.freenode.netserver, in the
- Implementation help may be found at Stack Overflow (tagged
- Developers should use the keyword
bootstrapon 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'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.