Overview
BracketUI is Third Bracket's own open-source UI component library, built for React and Next.js projects. Published on npm and maintained across 17 releases, it reflects the level of engineering rigour we apply across our work — we don't just use other people's tools, we build our own.
What We Built
A Turborepo monorepo containing the core component library published to npm, a CLI scaffolding tool (create-bracketui-app), and a showcase application. Components include Buttons, Navbars, Mega Menus, Tabs, Cards, and a bespoke ThemeToggle system that syncs with system preferences. The library ships with a custom Tailwind CSS plugin, full ES6 module support, and component-level theming via theme props.
The library includes ready-to-use components (Button, Navbar, Megamenu, Tab, Card, ThemeToggle), a custom TailwindCSS plugin, and a full dark/light theme system that syncs to system preferences. A companion CLI tool lets developers bootstrap a new project instantly with a single command.
Managed as a Turborepo monorepo with Changesets for versioned releases, BracketUI has shipped 17 releases and reached v4.0.0 — with active security patching maintained throughout.
Tech Stack
TypeScript, React, Next.js, Tailwind CSS, Turborepo, Changesets, npm