cosscom/ui
coss.com/ui is the official design system of Cal.com
Star History
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+267
STARS · LAST 30 DAYS
9
PER DAY
#199
MOST-STARRED TypeScript
| Window | 7 days | 30 days | 90 days |
|---|---|---|---|
| Stars gained | +63 | +267 | +810 |
| Per day | 9 | 9 | 9 |
| Forks gained | +3 | +11 | +28 |
ui gained 267 stars in the last 30 days, about 9 a day, and now has 10.7K. It is about 2 years old and has averaged roughly 5.3K stars a year. It ranks #199 among TypeScript repositories and #1,172 across all languages on GitHubRepo.
Trending Record
2
DAYS ON TRENDING
#4170
BEST RANK
Oct 12, 2026
FIRST APPEARANCE
Active
STATUS TODAY
ui has maintained a continuous presence across global trending indexes, peaking at #4170. Below is the 30-day activity profile:
💡 Overview
ui is an open-source project written in TypeScript: coss.com/ui is the official design system of Cal.com.
Engineered for speed, consistency, and developer ease, it solves common hurdles in base-ui, nextjs, radix-ui. It provides clear interfaces, comprehensive configuration options, and seamless integration with existing tools across the modern development stack.
⚡ Key Features
Optimized execution pipeline written in TypeScript for predictable speed.
Zero-friction configuration with comprehensive sensible defaults out of the box.
Cross-platform runtime support across Linux, macOS, and Windows environments.
Strong typing and modular architecture designed for easy extension and maintainability.
Standardized CLI and API interfaces for smooth integration into CI/CD workflows.
Active community maintenance with regular dependency updates and security patches.
📥 Installation
$ npm install ui⚙ System Requirements
Platforms
- • macOS
- • Linux
- • Windows
Runtime & Dependencies
Node.js >= 18, npm, pnpm or bun
Architecture
x86_64, ARM64 (Apple Silicon & Graviton)
🧠 How It Works
ui coordinates its core functionality through a modular TypeScript pipeline. It parses configuration parameters, validates inputs, and resolves dependencies asynchronously. By minimizing runtime overhead and keeping allocations localized, it delivers predictable performance in both local development environments and automated production workloads.
🎯 Production Use Cases
Autonomous AI Agents
Orchestrate intelligent workflows and tool-calling routines with ui.
Model Inference & Prompting
Integrate fast, local or cloud-hosted generative AI models directly into production code.
Context Memory & RAG
Augment language models with dynamic vector retrieval and structured project memory.
Developer Productivity
Automate repetitive engineering tasks, code generation, and test creation using AI agents.
🚀 Getting Started
Install ui using your package manager: `npm install ui`
Initialize your project workspace or configuration file for ui.
Import ui into your codebase or invoke it directly from your terminal.
Execute your test suite or run `ui --help` to verify successful setup.
👍 Strengths
⚠️ Considerations
⇄ Alternatives & Direct Competitors
👥 Who Should Use This
Developers and engineering teams building with TypeScript, seeking reliable, tested, and actively maintained tooling for production workloads.
🏆 Nearby in the Rankings
cosscom/ui is currently ranked #1,172 by stars across every repository tracked on GitHubRepo. These are adjacent projects:
| Rank | Repository | Language | Stars | Action |
|---|---|---|---|---|
| #1,167 | 99designs/gqlgen | Go | ★ 10.8K | Compare ↗ |
| #1,168 | tstack/lnav | C++ | ★ 10.7K | Compare ↗ |
| #1,169 | mockery/mockery | PHP | ★ 10.7K | Compare ↗ |
| #1,170 | omnigent-ai/omnigent | Python | ★ 10.7K | Compare ↗ |
| #1,171 | nodejs/node-gyp | Python | ★ 10.7K | Compare ↗ |
| #1,172 | cosscom/ui This Project | TypeScript | ★ 10.7K | |
| #1,173 | hydra-ecosystem/hydra | Python | ★ 10.7K | Compare ↗ |
| #1,174 | akveo/react-native-ui-kitten | TypeScript | ★ 10.7K | Compare ↗ |
| #1,175 | getlago/lago | Go | ★ 10.7K | Compare ↗ |
| #1,176 | Acly/krita-ai-diffusion | Python | ★ 10.7K | Compare ↗ |
| #1,177 | distribution/distribution | Go | ★ 10.6K | Compare ↗ |
Frequently Asked Questions
What does ui do? +
coss.com/ui is the official design system of Cal.com
What language is ui written in? +
The primary language is TypeScript. Topics include: base-ui, nextjs, radix-ui, react, shadcn.
Is ui actively maintained? +
Yes, the last recorded push was on Oct 12, 2026 with 6 open issues being tracked.
How many stars does ui have? +
ui has 10,686 stars and 550 forks on GitHub.
How does ui rank among GitHub repositories? +
With 10,686 stars, cosscom/ui is ranked #1,172 globally across all repositories tracked on GitHubRepo and #199 among TypeScript projects.
What license is ui distributed under? +
The repository reports a AGPL-3.0 license. Always verify the repository LICENSE file for legal terms.
