A Figma UI library built by designers, for designers

BBUI is a lightweight Figma library inspired by shadcn/ui and Tailwind CSS. It keeps designers and developers aligned through shared foundations.

Inspired by

Your design system, pre-assembled. Stop wasting time configuring libraries. BBUI gives you a structured, reliable foundation so you can start designing instantly with components that match modern development stacks.

Out-of-the-box configuration to kickstart any project

A shared foundation for design and development

Custom token systems rarely survive handoff. BBUI uses Tailwind variables so designers and developers work from the same set of rules. No translation errors, no gap between design and code.

The essential assets, built in

Designers need assets. BBUI includes the fundamental assets you use every day: icons, flags, web3 & brand logos, browser mockups. All pre-configured and ready to use.

Icons

Lucide icons

The complete Lucide icon set, pre-configured on a 24px container with 1.25px stroke. Consistent, accessible, and ready to drop into any design.

Flags

300+ Country flags

Localize your product with pre-configured flag assets. Perfect for multi-region apps, language selectors, and international platforms.

Web3

100+ Crypto assets

Build fintech and Web3 products with crypto brand assets integrated into the library.

Mockups

Browsers and devices

Mock your designs in realistic browser frames for presentations and prototypes.

boilingbrains.io

Never detach your components again

Nest local components inside instances like Drawer, Dialog, Sheet, Popover, or Card. Keep your user flows organized, your instances intact, and say goodbye to detaching forever.

slot

Slot

Card

CardTitle

CardDescription

Slot

Dialog

Popover

Sheet

Drawer

Vibe Code

Design in Figma. Build in Cursor.

BBUI follows shadcn/ui markup, making the handoff from design to production seamless. Using Figma MCP servers, designers can ship production-ready platforms with Figma and Cursor.

Guide to the Figma MCP server

All core components for you to work with

From accordions to data tables, BBUI includes all the components you reach for daily. Each one is production-ready, fully documented, and built to match the code developers will actually ship.

BBUI Updates

BBUI3 min read