New in v5.3 Color mode support, expanded color palette, and more! Bootstrap

Build fast, responsive sites
with Bootstrap

Powerful, extensible, and feature-packed frontend toolkit. Build and customize with
Sass, utilize prebuilt grid system and components, and bring projects to life with
powerful JavaScript plugins.

$ npm i bootstrap@5.3.0-alpha1
Read the docs
Currently v5.3.0-alpha1
Download v4.6.x docs All releases

Get started any way you want

Jump right into building with Bootstrap—use the CDN, install it via package manager,
or download the source code.

Read installation docs

Install via package manager

Install Bootstrap’s source Sass and JavaScript files via npm, RubyGems, Composer, or Meteor. Package managed installs don’t include documentation or our full build scripts. You can also use our npm template repo to quickly generate a Bootstrap project via npm.

$ npm install bootstrap@5.3.0-alpha1
$ gem install bootstrap -v 5.3.0-alpha1

Read our installation docs for more info and additional package managers.

Include via CDN

When you only need to include Bootstrap’s compiled CSS or JS, you can use jsDelivr. See it in action with our simple quick start, or browse the examples to jumpstart your next project. You can also choose to include Popper and our JS separately.

<link href="https://cdn.jsdelivr.net/npm/bootstrap@5....
<script>src="https://cdn.jsdelivr.net/npm/bootstrap@5...