shadcn-ui/cn

cn is a new engine for Tailwind class merging and conflict resolution. It replaces tailwind-merge and clsx. Same APIs. Full parity. And it is 30× faster.

TypeScript ◇ clsx MIT

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★1.6KSTARS

⑂17FORKS

!5ISSUES

🏆#2,119GLOBAL RANK

🔥6DAYS TRENDING

🚀

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Star History

Continuous Observations

Interactive star growth chart for shadcn-ui/cn

Momentum

+40

STARS · LAST 30 DAYS

PER DAY

#269

MOST-STARRED TypeScript

Window	7 days	30 days	90 days
Stars gained	+7	+40	+90
Per day	1	1	1
Forks gained	+1	+3	+10

cn gained 40 stars in the last 30 days, about 1 a day, and now has 1.6K. It is about 1 year old and has averaged roughly 1.6K stars a year. It ranks #269 among TypeScript repositories and #2,119 across all languages on GitHubRepo.

Trending Record

cn has maintained a continuous presence across global trending indexes, peaking at #347. Below is the 30-day activity profile:

💡 Overview

cn is an open-source project written in TypeScript: cn is a new engine for Tailwind class merging and conflict resolution. It replaces tailwind-merge and clsx. Same APIs. Full parity. And it is 30× faster.

Engineered for speed, consistency, and developer ease, it solves common hurdles in clsx, cn, shadcn. 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

terminal

$ npm install cn

$ npm install cn # or: pnpm add cn

> npm install cn

⚙ 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

cn 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 cn.

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 cn using your package manager: `npm install cn`

Initialize your project workspace or configuration file for cn.

Import cn into your codebase or invoke it directly from your terminal.

Execute your test suite or run `cn --help` to verify successful setup.

👍 Strengths

Active community backing with 1,579 GitHub stars and verified adoption.

Permissive open-source distribution under the MIT license.

Built in TypeScript for high execution speed and developer familiarity.

Cross-platform compatibility across modern Linux, macOS, and Windows environments.

Clean modular design allowing flexible configuration and pipeline integration.

⚠️ Considerations

Requires familiarity with TypeScript and modern CLI workflows.

Ecosystem extensions may require manual configuration depending on environment constraints.

Active development roadmap means breaking API changes may occur across major versions.

⇄ Alternatives & Direct Competitors

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Compare ↗

deepseek-ai/deepseek-harness ★ 237.6K TypeScript

DeepSeek Harness: Everything is a Plugin.

Compare ↗

vuejs/vue ★ 212.8K TypeScript

This is the repo for Vue 2. For Vue 3, go to https://github.com/vuejs/core

Compare ↗

anomalyco/opencode ★ 210.4K TypeScript

The open source coding agent.

Compare ↗

👥 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

shadcn-ui/cn is currently ranked #2,119 by stars across every repository tracked on GitHubRepo. These are adjacent projects:

Rank	Repository	Language	Stars	Action
#2,114	vitorpamplona/amethyst	Kotlin	★ 1.6K	Compare ↗
#2,115	uber/ADR	Python	★ 1.6K	Compare ↗
#2,115	Asymptote-Labs/agent-beacon	Go	★ 1.6K	Compare ↗
#2,117	johanohly/AirTrail	TypeScript	★ 1.6K	Compare ↗
#2,118	openchoreo/openchoreo	Go	★ 1.6K	Compare ↗
#2,119	shadcn-ui/cn This Project	TypeScript	★ 1.6K
#2,119	jfelchner/ruby-progressbar	Ruby	★ 1.6K	Compare ↗
#2,119	JetBrains/kotlin-wrappers	Kotlin	★ 1.6K	Compare ↗
#2,122	bkaankose/Wino-Mail	C#	★ 1.6K	Compare ↗
#2,123	dqev/reicon	Kotlin	★ 1.6K	Compare ↗
#2,124	dbos-inc/dbos-transact-py	Python	★ 1.6K	Compare ↗

Frequently Asked Questions

What does cn do? +

cn is a new engine for Tailwind class merging and conflict resolution. It replaces tailwind-merge and clsx. Same APIs. Full parity. And it is 30× faster.

What language is cn written in? +

The primary language is TypeScript. Topics include: clsx, cn, shadcn, tailwind-merge, tailwindcss.

Is cn actively maintained? +

Yes, the last recorded push was on Sep 22, 2026 with 5 open issues being tracked.

How many stars does cn have? +

cn has 1,597 stars and 17 forks on GitHub.

How does cn rank among GitHub repositories? +

With 1,597 stars, shadcn-ui/cn is ranked #2,119 globally across all repositories tracked on GitHubRepo and #269 among TypeScript projects.

What license is cn distributed under? +

The repository reports a MIT license. Always verify the repository LICENSE file for legal terms.

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💼

LinkedIn

Why cn is replacing paid subscriptions for engineering teams

Stop paying $50+/month for locked SaaS tools.

Over 1,597 developers have starred shadcn-ui/cn, an impressive TypeScript open-source project designed to cn is a new engine for Tailwind class merging and conflict resolution. It replaces tailwind-merge and clsx. Same APIs. Full parity. And it is 30 faster.

Key Engineering Advantages:
• 100% Local-First: Complete data privacy with zero tracking or telemetry.
• Zero Subscription Costs: No paywalls, per-seat fees, or API markups.
• Complete Customization: Native open-source architecture you can fork, inspect, and deploy anywhere.
• Proven Adoption: 1,597 GitHub stars and 17 forks.

If you're looking to streamline your engineering workflows without ballooning software expenses, this is worth checking out.

👉 Full star velocity and architectural report: https://githubrepo.cloud/repo/shadcn-ui/cn
⭐ GitHub Repository: https://github.com/shadcn-ui/cn

#OpenSource #SoftwareEngineering #DeveloperTools #Tech #Programming #TypeScript

🤖

Reddit (r/opensource, r/webdev, r/selfhosted)

Show r/opensource: cn – A free, self-hosted tool that lets you cn is a new engine for Tailwind class merging and conflict resolution. It replaces tailwind-merge and clsx. Same APIs. Full parity. And it is 30 faster

Hey everyone,

I wanted to share an interesting open-source project called **cn** (https://github.com/shadcn-ui/cn) that has been picking up heavy momentum lately (1,597 stars).

### What problem does it solve?
Many existing tools in this domain require expensive cloud plans or store your data on third-party servers. cn was built with a local-first philosophy, allowing developers to cn is a new engine for Tailwind class merging and conflict resolution. It replaces tailwind-merge and clsx. Same APIs. Full parity. And it is 30 faster without recurring subscription costs or privacy compromises.

### Tech Stack & Details:
- **Language:** TypeScript
- **License:** MIT
- **GitHub:** [shadcn-ui/cn](https://github.com/shadcn-ui/cn)
- **Live Star Momentum Tracker:** [https://githubrepo.cloud/repo/shadcn-ui/cn](https://githubrepo.cloud/repo/shadcn-ui/cn)

Has anyone here tested this in production or integrated it into existing pipelines? Would love to hear your experience and feedback!

🟧

Hacker News (Show HN)

Show HN: cn – cn is a new engine for Tailwind class merging and conflict resoluti...

Hi HN,

cn is an open-source TypeScript project designed to cn is a new engine for Tailwind class merging and conflict resolution. It replaces tailwind-merge and clsx. Same APIs. Full parity. And it is 30 faster.

Rather than relying on closed cloud endpoints, it executes locally on your own machine, providing predictable latency, total privacy, and full control.

Repository: https://github.com/shadcn-ui/cn
Documentation & Metrics: https://githubrepo.cloud/repo/shadcn-ui/cn

Feedback and PRs are welcome.

✍️

Dev.to / Hashnode Tags: opensource, typescript, devtools, webdev

This GitHub repo replaces a $50 a month tool! Stop paying expensive software subscriptions. Meet cn (1,597 GitHub Stars)

---
title: This GitHub repo replaces a $50 a month tool! Stop paying expensive software subscriptions. Meet cn
published: true
tags: opensource, typescript, devtools, programming
---

## Stop Paying Software Subscriptions For This

Finding high-quality, production-ready open source alternatives to expensive proprietary software can save engineering teams thousands of dollars every year.

Today, we're looking at **[shadcn-ui/cn](https://github.com/shadcn-ui/cn)**, a rapidly rising repository with **1,597 GitHub stars** and **17 forks**.

### What is cn?

> cn is a new engine for Tailwind class merging and conflict resolution. It replaces tailwind-merge and clsx. Same APIs. Full parity. And it is 30 faster

Written in **TypeScript**, cn runs directly on your local workstation or private server, keeping your data secure and eliminating recurring license fees.

### Key Highlights
- **High Performance:** Lightweight, reliable, and built in TypeScript.
- **Privacy & Security:** Complete ownership of your environment and data.
- **Growing Momentum:** Ranked **#2,119** globally across tracked repositories on [GitHubRepo](https://githubrepo.cloud/repo/shadcn-ui/cn).

### Quick Start
To get started locally:

```bash
git clone https://github.com/shadcn-ui/cn.git
cd cn
```

Check out the full repository and star history analytics here:
- **GitHub:** [shadcn-ui/cn](https://github.com/shadcn-ui/cn)
- **Star Velocity Tracker:** [cn on GitHubRepo.cloud](https://githubrepo.cloud/repo/shadcn-ui/cn)

𝕏

X / Twitter Communities

Thread / Community Post for cn

Developers are sleeping on this GitHub repo 👇

shadcn-ui/cn (1,597 ⭐) replaces expensive monthly software subscriptions with 100% free open source code.

⚡ What it does: cn is a new engine for Tailwind class merging and conflict resolution. It replaces tailwind-merge and clsx. Same APIs. Full parity. And it is 30 faster
💻 Built with: TypeScript
🔒 100% local execution & privacy

Check live star velocity and benchmarks:
https://githubrepo.cloud/repo/shadcn-ui/cn

#opensource #developer #coding #tech #programming

🧵

Threads Topics

Topic Discussion: Open Source & Developer Tools

This GitHub repo replaces a $50/month tool! 🚀

If you want to save hours of manual work and stop paying subscriptions, check out shadcn-ui/cn.

It already has over 1,597 stars and lets you cn is a new engine for Tailwind class merging and conflict resolution. It replaces tailwind-merge and clsx. Same APIs. Full parity. And it is 30 faster.

Drop a comment if you've tried it, or check the full star momentum report:
https://githubrepo.cloud/repo/shadcn-ui/cn

From our network

shadcn-ui/cn

Star History

Momentum

Trending Record

💡 Overview

⚡ Key Features

📥 Installation

⚙ System Requirements

Platforms

Runtime & Dependencies

Architecture

🧠 How It Works

🎯 Production Use Cases

Autonomous AI Agents

Model Inference & Prompting

Context Memory & RAG

Developer Productivity

🚀 Getting Started

👍 Strengths

⚠️ Considerations

⇄ Alternatives & Direct Competitors

👥 Who Should Use This

🏆 Nearby in the Rankings

Frequently Asked Questions

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