Bootstrap/site/content/docs/4.3/getting-started/contents.md

layout	title	description	group	toc
docs	Contents	Discover what's included in Bootstrap, including our precompiled and source code flavors.	getting-started	true

Precompiled Bootstrap

Once downloaded, unzip the compressed folder and you'll see something like this:

{{< highlight text >}} bootstrap/ ├── 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 {{< /highlight >}}

This is the most basic form of Bootstrap: precompiled files for quick drop-in usage in nearly any web project. 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.

CSS files

Bootstrap includes a handful of options for including some or all of our compiled CSS.

CSS files	Layout	Content	Components	Utilities
bootstrap.css bootstrap.min.css	Included	Included	Included	Included
bootstrap-grid.css bootstrap-grid.min.css	}}">Only grid system	—	—	}}">Only flex utilities
bootstrap-utilities.css bootstrap-utilities.min.css	—	—	—	Included
bootstrap-reboot.css bootstrap-reboot.min.css	—	}}">Only Reboot	—	—

JS files

Similarly, we have options for including some or all of our compiled JavaScript.

JS files	Popper
bootstrap.bundle.js bootstrap.bundle.min.js	Included
bootstrap.js bootstrap.min.js	—

Bootstrap source code

The Bootstrap source code download includes the precompiled CSS and JavaScript assets, along with source Sass, JavaScript, and documentation. More specifically, it includes the following and more:

{{< highlight text >}} bootstrap/ ├── dist/ │ ├── css/ │ └── js/ ├── site/ │ └──content/ │ └── docs/ │ └── 4.3/ │ └── examples/ ├── js/ └── scss/ {{< /highlight >}}

The scss/ and js/ are the source code for our CSS and JavaScript. The dist/ folder includes everything listed in the precompiled download section above. The site/docs/ folder includes the source code for our documentation, and examples/ of Bootstrap usage. Beyond that, any other included file provides support for packages, license information, and development.