Bulma

A free, open-source CSS framework for building responsive web interfaces with ready-to-use components.

Verified ~13k monthly visits
Quick facts
What is it A free, open-source CSS framework for building responsive web interfaces with ready-to-use components.
Pricing Contact for Pricing
Free tier No
Platform Web Application
Best for building responsive websites, creating web application interfaces
Domain registered 2015

Data updated Aug. 1, 2026

What does Bulma do?

Bulma is a CSS framework that gives you a collection of pre-styled components to build websites. Instead of writing all your CSS from scratch, you can use Bulma's classes for things like buttons, forms, navigation bars, and grids. The framework is designed to be responsive out of the box, so your site will look good on phones, tablets, and desktops without extra work. It's a pure CSS tool, meaning it doesn't force you to use any specific JavaScript library.

What makes Bulma stand out is its simplicity and modern foundation. It's built entirely with Flexbox, which makes creating complex layouts straightforward. The documentation is famously clear, with plenty of examples you can copy and paste. You can customize the look with Sass variables, and it supports modern features like CSS variables for easy dark mode theming. The framework is modular, so you can import only the parts you need, keeping your final CSS file small.

Bulma is a great fit for web developers who want to build interfaces quickly without getting bogged down in CSS details. It's especially helpful for backend developers or those new to frontend work who need a professional-looking result fast. Common use cases include prototyping new web applications, building admin dashboards, or creating marketing websites where you need a clean, responsive design without starting from zero.

#css-framework#flexbox#frontend#open source#responsive design#web development

Key features

What makes it stand out
01
100% responsive, mobile-first design
02
Built with modern Flexbox and CSS Grid
03
Pure CSS with no JavaScript required
04
Extensive library of ready-to-use components
05
Easy customization with Sass and CSS Variables

Who is Bulma for?

Who benefits most from this tool
building responsive websites
creating web application interfaces
prototyping web designs quickly

Trust & presence

Search presence Top 100k site
Domain Domain registered 2015

Similar tools

Frontender Verified Developer Tools

Figma plugin that converts design layers into clean front-end code (HTML, CSS, Tailwind, JSX) instantly.

FireJet Verified Developer Tools

Convert Figma designs to responsive, production-ready code in multiple frameworks with one click

Relume Verified Website Designer

Search our library of 1,000+ components, copy with one click and paste them into your Webflow or Figma project. You can also create components for personal use, clients or the Webflow community. Simply paste in components from your Webflow project, save them to a folder and share it to anyone.

Share X LinkedIn Telegram
Bulma Visit