Bootstrap

Bootstrap is an open-source frontend toolkit for developing with HTML, CSS, and JavaScript. It enables rapid prototyping and full application development using Sass variables and mixins, a responsive grid system, extensive prebuilt UI components, and powerful plugins built on jQuery. It is widely popular for building responsive, mobile-first projects on the web.

platform:web pricing:free form:web-app language:javascript feature:responsive-design feature:sass-support feature:ui-components feature:javascript-plugins target:developers target:designers use-case:productivity use-case:frontend-development