# Cosscom UI (UI components & kits)

> Cosscom UI is a free, open-source UI component library built with React, Next.js and Tailwind CSS. Coss.com/ui is the official design system of Cal.com. It has 10,763 GitHub stars and is released under the AGPL-3.0 license. A live demo is linked from this page.

coss.com/ui is the official Cal.com Design System. This repository contains multiple products and applications that make up the coss.com ecosystem:

## Key facts

| Fact | Value |
|---|---|
| Repository | https://github.com/cosscom/ui |
| Built with | React, Next.js, Tailwind CSS, shadcn/ui, TypeScript |
| Live demo | https://coss.com |
| GitHub template repository | no |
| GitHub stars | 10,763 |
| License | AGPL-3.0 |
| Language | TypeScript |
| Official | no |
| Category | UI components & kits |
| Latest release | none |
| Last commit | Oct 22, 2026 |

## Get started

### Copy with degit

```sh
npx degit cosscom/ui my-ui
cd my-ui
npm install   # then run the dev script from the README
```

### Or clone with git

```sh
git clone --depth 1 https://github.com/cosscom/ui.git my-ui
```

Commercial use depends on the AGPL-3.0 license. Sources: https://docs.github.com/en/repositories/creating-and-managing-repositories/creating-a-repository-from-a-template, https://github.com/Rich-Harris/degit

## Similar templates

- [Base UI](https://appsgit.com/templates/base-ui): Unstyled UI components for building accessible web apps and design systems. (11,251 stars, MIT, official)
- [Shadcn Vue](https://appsgit.com/templates/shadcn-vue): A set of beautifully designed components that you can customize, extend, and build on. (10,742 stars, MIT, official)
- [Assistant UI](https://appsgit.com/templates/assistant-ui): Typescript/React Library for AI Chat. (12,793 stars, MIT, official)
- [Tweakcn](https://appsgit.com/templates/tweakcn): A visual no-code theme editor for shadcn/ui components. (10,493 stars, Apache-2.0)
- [Naive UI](https://appsgit.com/templates/naive-ui): A Vue 3 Component Library. Fairly Complete. (18,591 stars, MIT)
- [Buefy](https://appsgit.com/templates/buefy): Lightweight UI components for Vue.js based on Bulma. (9,507 stars, MIT)

---

Canonical page: https://appsgit.com/templates/cosscom-ui
Source: appsgit (https://appsgit.com), the app store for github. Data from the GitHub API, refreshed daily.
Machine access: JSON API https://appsgit.com/api/v1/apps (OpenAPI: https://appsgit.com/openapi.json), MCP server https://mcp.appsgit.com/mcp, full index https://appsgit.com/llms-full.txt.