New in v5.2 CSS variables, responsive offcanvas, new utilities, 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.

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Read the docs

Currently v{{ .Site.Params.current_version }} · Download · v4.6.x docs · All releases

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