Bootstrap
FREE
Popular HTML, CSS, and JS framework
About
Bootstrap is a popular HTML, CSS, and JavaScript framework for developing responsive, mobile-first web applications. It provides pre-built components and utilities.
Pricing
Pricing Type
Free
Free tier available
Billing
One-time payment
Last checked: February 19, 2026
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Key Facts
Categories
Platforms
Web
Mac
Windows
Linux
Company
Bootstrap
Founded
Founded in 2011
Country
Global
Language
English