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Bootstrap

Bootstrap

Bootstrap - responsive front-end framework

Bootstrap is a free, open-source front-end framework for building responsive, mobile-first websites and web applications quickly.

Official Website

Category

Frontend

First Release

2011

License

MIT

Maintained By

Twitter (now X)

Latest News

Bootstrap 6 Alpha 1 Released for Testing

The first alpha release of Bootstrap 6 is now available for developers to test new features and evaluate updates to the responsive front-end framework.

10/8/2026 • 0 likes

Difficulty

Beginner 1/3

Its prebuilt components and grid system are easy to learn, making it beginner-friendly for rapid UI development.