Bootstrap

getbootstrap.com

The most popular HTML, CSS, and JS library in the world.

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Bootstrap screenshot
/ About /

Bootstrap is an open-source frontend toolkit providing a responsive grid system, prebuilt UI components, and JavaScript plugins for building websites and web applications. It supports deep customization through Sass variables and a utility API, allowing developers to tailor styles without rewriting core rules. The library is available via CDN, npm, RubyGems, Composer, and Meteor.

/ How it works /

Developers include Bootstrap via CDN or package manager and use its prebuilt CSS classes, Sass variables, and JavaScript plugins to rapidly build and customize responsive UI components.

/ Who it's for /

web developers and frontend engineers

/ More info /

Background.

Status
launched
Business model
open-source
/ Discovered patterns /

Similar projects.

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