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Bootstrap
The most popular HTML, CSS, and JS library in the world
FreeOpen SourceFrameworkUI Library24,940 impressions#2 of its week3 comments
Comments
>log in to comment- Devluc· 2y ago
Wow Bootstrap is here. Big upvote. I am grateful to the creators because their framework helped me put food on the table as template maker. Currently showcasing the best selected free Bootstrap templates on HTMLrev. Thank you and good luck with future projects to the entire team.
- John Rush· 2y ago
what a legendary tool. thx for everything. I used it for so many projects
- Abhijit· 2y ago
Our good friend. A special thanks to bootstrap team
Bootstrap is a popular HTML, CSS, and JS library for building responsive, customizable front-end interfaces.
- for
- Web developers building responsive sites and UI components.
- pricing
- open source
- license
- MIT
Key features
- Sass-based theming — Import only needed components and override variables, maps, functions, and mixins.
- CSS variables — Global and component-scoped variables let you adjust colors, fonts, and spacing at runtime.
- Utility API — Generate, modify, or create custom utility classes via a configurable Sass map.
- JavaScript plugins — Dozens of plugins (modal, tooltip, carousel, etc.) work without jQuery using data attributes or programmatic API.
- Bootstrap Icons — Open-source SVG icon library with 1,800+ glyphs, usable as SVGs or icon fonts.
- Multiple install options — Install via npm, RubyGems, Composer, Meteor, CDN, or download source files.
Use cases
- Build a mobile-first responsive website quickly.
- Create a custom theme by overriding Sass variables and CSS variables.
- Add interactive components like modals, dropdowns, and carousels without writing JavaScript.
- Prototype a UI using the CDN for instant styling.
- Integrate Bootstrap into modern build tools such as Webpack, Vite, or Parcel.
Bootstrap vs alternatives
.png?width=64) Bootstrap |  Flowbite |  Float UI v2 |  Swiper Studio | |
|---|---|---|---|---|
| Best for | Responsive UI toolkit with Sass and JS plugins | Tailwind UI components | Tailwind component snippets | No-code swiper creation |
| Pricing | Open source | Free | Free | One time fee |
| DevHunt upvotes | 20 | 36 | 44 | 58 |
| Launched | May 2024 | Jan 2024 | Dec 2023 | Jan 2023 |
- Bootstrap vs Flowbite: Tailwind-based component library, focuses on utility-first styling rather than prebuilt components.
- Bootstrap vs Float UI v2: Provides free Tailwind UI components without Bootstrap’s Sass or JavaScript plugins.
- Bootstrap vs Swiper Studio: No-code builder for Swiper sliders, whereas Bootstrap offers a full UI framework.
Bootstrap FAQ
How do I install Bootstrap?+
You can install via npm (npm i bootstrap@5.3.8), RubyGems, Composer, Meteor, or include the compiled CSS/JS from the jsDelivr CDN.
Can I customize Bootstrap with Sass?+
Yes, import its Sass source, override variables, maps, functions, and mixins, and include only the components you need.
Do I need jQuery for Bootstrap’s JavaScript plugins?+
No, Bootstrap’s plugins are written in vanilla JavaScript and can be used via data attributes or programmatically.
What is the Utility API?+
It is a Sass-based system that generates utility classes, which you can modify, extend, or create new utilities for your project.
How do I use Bootstrap Icons?+
Bootstrap Icons are an open-source SVG library; include them as SVG files or icon fonts and style them with CSS.
Summarized by DevHunt from getbootstrap.com · Sep 27, 2026. Details may change; check the official site.
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