Build interfaces with Beer CSS, a lightweight CSS framework based on Material Design 3.
Bulma
Build responsive interfaces with Bulma, an open-source CSS framework based on Flexbox and Sass.
About Bulma
Bulma is a CSS framework for building responsive web interfaces. It is based on Flexbox and built with Sass, and it provides ready-to-use frontend components that can be combined into page layouts.
The framework includes a grid system whose columns resize themselves, support for dark and light modes, and CSS variables. Testimonials on the homepage say it does not impose JavaScript implementations, but these are user quotes rather than technical documentation. The homepage describes Bulma as open source and links to GitHub, while the directory record marks it as not open source and lists no repository. Confirm the license before relying on it. Pricing is not recorded in this entry.
Key features
- Ready-to-use frontend components that can be combined into responsive layouts
- Flexbox-based grid system with columns that resize automatically
- Dark mode applied automatically or by user preference via a data-theme attribute
- CSS variables and Dart Sass support
- Mobile-first, responsive design
- Modular components, so developers can use only the parts they need
Best for: Web developers who want prebuilt, responsive CSS components based on Flexbox and Sass.
Good for
- Homepage describes the framework as free
- Designed mobile-first with responsive components
- Homepage testimonials describe it as not requiring JavaScript implementations
Bulma at a glance
- Website
- bulma.io
- Category
- Development › CSS & Web Styling
- Type
- Website
- Pricing
- Not confirmed. Check the site
- Platforms
- Web
- Open source
- Not stated
- Language
- English
- Last checked
- Oct 6, 2026 · Online when checked
- Listed
- Oct 5, 2026
Bulma alternatives
Tools and sites you could use instead, ranked by how closely they match.
Utility-first CSS for building websites is provided by Tailwind CSS, which uses classes in HTML.
Minimal website styles with a terminal-inspired appearance are provided by Terminal CSS.
Build interfaces with daisyUI, a Tailwind CSS component library with themes and reusable UI blocks.
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Bulma FAQ
Does Bulma include dark mode?
The homepage shows dark mode that can be chosen automatically or by user preference, using a data-theme attribute on the page element.
Is Bulma open source?
The homepage describes Bulma as open source and links to a GitHub page. The directory record marks it as not open source, so check the project's license directly.
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