jhlywa/chess.js

A TypeScript chess library for chess move generation/validation, piece placement/movement, and check/checkmate/draw detection

TypeScript ◇ chess BSD-2-Clause

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★4.4KSTARS

⑂988FORKS

!46ISSUES

🏆#1,167GLOBAL RANK

🔥3DAYS TRENDING

🚀

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Star History

Continuous Observations

Interactive star growth chart for jhlywa/chess.js

Momentum

+110

STARS · LAST 30 DAYS

PER DAY

#170

MOST-STARRED TypeScript

Window	7 days	30 days	90 days
Stars gained	+28	+110	+360
Per day	4	4	4
Forks gained	+5	+20	+49

chess.js gained 110 stars in the last 30 days, about 4 a day, and now has 4.4K. It is about 18 years old and has averaged roughly 245 stars a year. It ranks #170 among TypeScript repositories and #1,167 across all languages on GitHubRepo.

Trending Record

chess.js has maintained a continuous presence across global trending indexes, peaking at #1342. Below is the 30-day activity profile:

💡 Overview

chess.js is an open-source project written in TypeScript: A TypeScript chess library for chess move generation/validation, piece placement/movement, and check/checkmate/draw detection.

Engineered for speed, consistency, and developer ease, it solves common hurdles in chess. 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 chess.js

$ npm install chess.js # or: pnpm add chess.js

> npm install chess.js

⚙ 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

chess.js 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

Production System Integration

Embed chess.js into TypeScript backend services to handle core application logic.

CI/CD Automated Pipelines

Run automated validation, builds, and integration suites during deployments.

Developer Tooling & Workflows

Accelerate developer onboarding with pre-configured project utilities.

Open Source Extension

Fork and customize internal modules under the repository's open BSD-2-Clause license.

🚀 Getting Started

Install chess.js using your package manager: `npm install chess.js`

Initialize your project workspace or configuration file for chess.js.

Import chess.js into your codebase or invoke it directly from your terminal.

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

👍 Strengths

Active community backing with 4,410 GitHub stars and verified adoption.

Permissive open-source distribution under the BSD-2-Clause 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 ↗

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👥 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

jhlywa/chess.js is currently ranked #1,167 by stars across every repository tracked on GitHubRepo. These are adjacent projects:

Rank	Repository	Language	Stars	Action
#1,162	muety/wakapi	Go	★ 4.4K	Compare ↗
#1,163	TheoLeeCJ/SemIf-OpenJev	Python	★ 4.4K	Compare ↗
#1,164	square/wire	Kotlin	★ 4.4K	Compare ↗
#1,165	ExcelDataReader/ExcelDataReader	C#	★ 4.4K	Compare ↗
#1,165	crmne/ruby_llm	Ruby	★ 4.4K	Compare ↗
#1,167	jhlywa/chess.js This Project	TypeScript	★ 4.4K
#1,168	JetBrains/fernflower	Java	★ 4.4K	Compare ↗
#1,169	SelfControlApp/selfcontrol	Objective-C	★ 4.4K	Compare ↗
#1,169	LibreOffice/core	C++	★ 4.4K	Compare ↗
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#1,172	micheleg/dash-to-dock	JavaScript	★ 4.4K	Compare ↗

Frequently Asked Questions

What does chess.js do? +

A TypeScript chess library for chess move generation/validation, piece placement/movement, and check/checkmate/draw detection

What language is chess.js written in? +

The primary language is TypeScript. Topics include: chess.

Is chess.js actively maintained? +

Yes, the last recorded push was on Aug 11, 2026 with 46 open issues being tracked.

How many stars does chess.js have? +

chess.js has 4,410 stars and 988 forks on GitHub.

How does chess.js rank among GitHub repositories? +

With 4,410 stars, jhlywa/chess.js is ranked #1,167 globally across all repositories tracked on GitHubRepo and #170 among TypeScript projects.

What license is chess.js distributed under? +

The repository reports a BSD-2-Clause license. Always verify the repository LICENSE file for legal terms.

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LinkedIn

Why chess.js is replacing paid subscriptions for engineering teams

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

Over 4,410 developers have starred jhlywa/chess.js, an impressive TypeScript open-source project designed to A TypeScript chess library for chess move generation/validation, piece placement/movement, and check/checkmate/draw detection.

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: 4,410 GitHub stars and 988 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/jhlywa/chess.js
⭐ GitHub Repository: https://github.com/jhlywa/chess.js

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

🤖

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

Show r/opensource: chess.js – A free, self-hosted tool that lets you A TypeScript chess library for chess move generation/validation, piece placement/movement, and check/checkmate/draw detection

Hey everyone,

I wanted to share an interesting open-source project called **chess.js** (https://github.com/jhlywa/chess.js) that has been picking up heavy momentum lately (4,410 stars).

### What problem does it solve?
Many existing tools in this domain require expensive cloud plans or store your data on third-party servers. chess.js was built with a local-first philosophy, allowing developers to A TypeScript chess library for chess move generation/validation, piece placement/movement, and check/checkmate/draw detection without recurring subscription costs or privacy compromises.

### Tech Stack & Details:
- **Language:** TypeScript
- **License:** BSD-2-Clause
- **GitHub:** [jhlywa/chess.js](https://github.com/jhlywa/chess.js)
- **Live Star Momentum Tracker:** [https://githubrepo.cloud/repo/jhlywa/chess.js](https://githubrepo.cloud/repo/jhlywa/chess.js)

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: chess.js – A TypeScript chess library for chess move generation/validation, pi...

Hi HN,

chess.js is an open-source TypeScript project designed to A TypeScript chess library for chess move generation/validation, piece placement/movement, and check/checkmate/draw detection.

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/jhlywa/chess.js
Documentation & Metrics: https://githubrepo.cloud/repo/jhlywa/chess.js

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 chess.js (4,410 GitHub Stars)

---
title: This GitHub repo replaces a $50 a month tool! Stop paying expensive software subscriptions. Meet chess.js
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 **[jhlywa/chess.js](https://github.com/jhlywa/chess.js)**, a rapidly rising repository with **4,410 GitHub stars** and **988 forks**.

### What is chess.js?

> A TypeScript chess library for chess move generation/validation, piece placement/movement, and check/checkmate/draw detection

Written in **TypeScript**, chess.js 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 **#1,167** globally across tracked repositories on [GitHubRepo](https://githubrepo.cloud/repo/jhlywa/chess.js).

### Quick Start
To get started locally:

```bash
git clone https://github.com/jhlywa/chess.js.git
cd chess.js
```

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

𝕏

X / Twitter Communities

Thread / Community Post for chess.js

Developers are sleeping on this GitHub repo 👇

jhlywa/chess.js (4,410 ⭐) replaces expensive monthly software subscriptions with 100% free open source code.

⚡ What it does: A TypeScript chess library for chess move generation/validation, piece placement/movement, and check/checkmate/draw detection
💻 Built with: TypeScript
🔒 100% local execution & privacy

Check live star velocity and benchmarks:
https://githubrepo.cloud/repo/jhlywa/chess.js

#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 jhlywa/chess.js.

It already has over 4,410 stars and lets you A TypeScript chess library for chess move generation/validation, piece placement/movement, and check/checkmate/draw detection.

Drop a comment if you've tried it, or check the full star momentum report:
https://githubrepo.cloud/repo/jhlywa/chess.js

From our network

jhlywa/chess.js

Star History

Momentum

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💡 Overview

⚡ Key Features

📥 Installation

⚙ System Requirements

Platforms

Runtime & Dependencies

Architecture

🧠 How It Works

🎯 Production Use Cases

Production System Integration

CI/CD Automated Pipelines

Developer Tooling & Workflows

Open Source Extension

🚀 Getting Started

👍 Strengths

⚠️ Considerations

⇄ Alternatives & Direct Competitors

👥 Who Should Use This

🏆 Nearby in the Rankings

Frequently Asked Questions

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