JSPM

The Stockfish chess engine in Web Assembly (WASM)

elo ranking system

lichess.org chess ui

Chessboard.jsx is a chessboard for React. Inspired by chessboard.js

Library made in Angular version 20

pgn parser

A JavaScript chessboard which is lightweight, ES6 module based, responsive, SVG rendered and without dependencies.

Chess Engine

A PEG parser to read PGN (Portable Game Notation) games.

Chess and chess variant rules and operations

A chess engine.

Simple and fast Node.js chess engine without dependencies

The strong chess engine Stockfish with multi-variant support compiled to JavaScript and WebAssembly

Provide the (type) language for all the `pgn-*` packages I am developing.

WebAssembly port of the strong chess engine Stockfish

lichess.org chess ui

Lichess authentication strategy for Passport.

Built on top of chess.js and can handle variations (tree-structured move history)

A TypeScript module for parsing PGN moves and displaying them in a web page.

It's just the ES6 module version of chess.js

A PEG parser to read PGN (Portable Game Notation) games.

Module for parsing and rendering of PGNs (Portable Game Notation)

Extended lichess.org Chess UI

PGN parser that transforms PGN files into chess "moments"

react-chess-game is a React component bridging chess.js with react-chessboard to offer a full-featured, ready-to-integrate chess board experience.

svg chess pieces

A JavaScript/TypeScript library implementing the chess game rules and providing tools to read/write the standard chess file formats.

A lightweight, customizable React component library for rendering and interacting with chess puzzles.

React PGN viewer widget for all chess games

JavaScript Chess Board http://chessboardjs.com

A TypeScript wrapper library for implementing the **Ban Chess** variant on top of the `chess.ts` library. In Ban Chess, players must navigate around banned moves - each move is preceded by the opponent banning one of their legal options.

WebAssembly port of the strong chess engine Stockfish with multi-variant support

A React chessboard component for chess-based CAPTCHA systems. Features interactive drag-and-drop functionality, customizable board size, and real-time move validation. Built with TypeScript, React, and chess.js.

It's like chess.js, but in ES6 and can handle variations (tree-structured move history)

A PEG writer to write PGN (Portable Game Notation) notation.

An algebraic notation driven chess engine that can validate board position and produce a list of viable moves (notated).

[](https://travis-ci.org/lubert/chess.ts) [](https://www.npmjs.com/package/@lubert/chess.ts)

Chessground react wrapper

PGN viewer widget, designed to be embedded in content pages.

Chess FEN (Forsyth-Edwards Notation) positions analyzer. Having FEN as input helps to identify, e.g. how many pieces left on the board

React warp for chessground <https://github.com/ornicar/chessground>

Universal Chess Interface protocol implementation for node.js

A lightweight, customizable React component library for rendering and interacting with chess puzzles.

database of chess best moves

RICPA Client, client for Remote Chess Engine, implemented following RICPA protocol

PGN viewer widget, designed to be embedded in content pages.

vue3-chessboard is a component library for creating chess web apps with vue3

FEN queue with priorities

A CLI tool to get chess puzzles from Lichess and Chess.com

Process and analyzes queue of chess positions in FEN format

React and Next wrapper for Chessground with chessboard and pieces out of the box

react-chess-game is a React component bridging chess.js with react-chessboard to offer a full-featured, ready-to-integrate chess board experience.

A chess-based CAPTCHA library that generates mate-in-1 puzzles using Stockfish engine. Built with TypeScript, React, and chess.js. For the React chessboard component for this CAPTCHA, see [chess-captcha-react-jsx](https://www.npmjs.com/package/chess-captc

Chess utility library written in JavaScript

A highly optimized, feature-rich React Native chessboard component with gesture support, animations, customizable themes, and standalone mode support

ES6 Module for playing chess

Chess on NODE

A pgn viewer to view or edit chess games on HTML web sites.

Chess MCP server with position evaluation, move validation, and masters database

Chessboard configuration with multiple customization options. By alepot55

Elo ranking system implemented in TypeScript

Displays a chessboard react component based on a pgn string

A customizable and interactive chessboard component for React applications. Easily integrate a fully functional and responsive chessboard into your React project with features like drag-and-drop pieces, move validation, and customizable board styles.

Minimal Lichess API Client for Node.js

A comprehensive chess analysis board React component with move navigation, variation support, PGN import/export, and customizable keyboard shortcuts

Library to run Stockfish Chess Engine on all mobile platforms

An implementation of the ELO Rating System

Chessboard vue component to load positions, create positions and see threats

A React-based library to create and display chessboard and chess-related components.

Chess PGN parser for 8x8 chess games for import or export standards

A generic minmax algorithm engine (with alpha-beta pruning) that can work with any game supplied by the user

A Javascript library for crazyhouse with 960 support, based on the chess.js library.

A collection of tools / libraries for programming chess applications.

Library to run Stockfish Chess Engine on all mobile platforms

Chess game component

lichess.org chess ui

Yet another Javascript Chess Board

Svelte chessboard component. A Svelte wrapper for the full-featured Chessground chess UI.

CLI tool for learning chess openings based on ECO classification

Chess Rules implementation as a standalone module.

MCP Server for Chess

公共象棋工具类

Chess FEN notation validator

[](https://badge.fury.io/js/ngx-chessground) [](https://opensource.org/licenses/GPL-3.0)

A chess engine. This is a fully functional game core that implements all the functionality and logic and provides an easy way to interact with the pieces.

The React Chessboard Library used at ChessOpenings.co.uk. Inspired and adapted from the unmaintained Chessboard.jsx.

a general purpose minimax framework which uses alpha-beta, an A.I. tool useful for machine decision making

Chess AI based on Alpha-Beta pruning algorithm.

Chinese chess service

Calculation of chess tournament tiebreaks compliant with FIDE regulations

TypeScript library for Lichess API with streaming support, game analysis, and OAuth authentication

A JavaScript chessboard which is lightweight, ES6 module based, responsive, SVG rendered and without dependencies.

Fully playable chess component for Svelte. Powered by Chess.js logic, Chessground chessboard and optionally Stockfish chess AI.

The best NodeJS client for the Lichess API

A react ui library for integrating chess into web apps

Vue 3 wrapper for chessground - A modern chess board component

Chess Engine

PGN is a parser that is part of the ECHECS project, designed to interpret the PGN (Portable Game Notation) specification.

Chess Trainer MCP Server with Stockfish NNUE engine - Interactive chess training with AI coaching capabilities

Open source implementation of '5D Chess With Multiverse Time Travel' in the style of Chess.js library with built-in notation support.

Chessboard UI Package for PowChess.com

An isomorphic and fully customisable JavaScript chess engine

implementation of chess.js on react native

Chess FEN parser for 8x8 games, including chess 960

Javascript chess library for chess rules and chess ai.

A FEN editor for web – uses Bootstrap 4 and cm-chessboard

A brand new chess moves validator/generator

Cordova interface to Stockfish chess engine.

<a href="https://dragunovartem99.github.io/html-diagram" target="_blank"><img alt="Static Badge" src="https://img.shields.io/badge/Watch_Live_Demo-red"></a> <img alt="NPM Downloads" src="https://img.shields.io/npm/d18m/html-diagram?color=blue"> <img alt="

Jungle board service

Federated Wiki - Chess Plugin

chegura is a chess-guru - server providing best chess moves

"Scraper for FIDE website"

A web component for displaying chess positions.

StockfishPlayer for ChessConsole

A lightweight, simple, and high-performing chessboard for React Native with orientation support

A thin wrapper on a UCI chess engine

lichess.org chess ui

FFE api for the french chess federaion website

Chess MCP server with position evaluation, move validation, and masters database

A simple web component

Suicide chess engine acting as desktop engine, web page, mobile application, Internet chess server and library

A Chess Engine in Typescript

Chess Merida Font is a full suite of all chess pieces icons for easy scalable vector graphics on websites.

Simple code-only Chessboard written in TypeScript. Handles FEN and PGN.

Stockfish-powered Node Chess Command Line Tool

Chess game analyser

ELO is part of the ECHECS project, providing an implementation of the ELO Rating System following FIDE rules.

React component for a fully featured, stylable chess analysis board.

The React Chessboard with Controls used at endchess.training

Playing chess games in Koishi

The React Chessboard Library used at ChessOpenings.co.uk. Inspired and adapted from the unmaintained Chessboard.jsx.

React chess pieces component

Chess move validation library based on board data

lichess.org Chess UI

A chess library in Javascript

Play Games and Watch Youtube Along with your friends While you stream using this Npm Package!

The React Chessboard Library used at ChessOpenings.co.uk. Inspired and adapted from the unmaintained Chessboard.jsx.

A node-JS version of the English Chess Federation (ECF) grading database. Works by scraping the webpages generated (so you don't have to!), until such time they choose to build a proper API.

Chess engine that makes writing chessgame easier than writing a calculator

A Grid-Based Games Framework For TypeScript/JavaScript

Fork from chessboardjs that makes the moudle work with Vue and Webpack

A TypeScript chess game.

ELO ratings helper

A chessboard with JavaScript

A JavaScript library for batch analyzing chess games.

Useful chess APIs ...for everyone

chess engine hight level api

A simple Xiangqi Board for React. Inspired and adapted from the unmaintained Chessboard.jsx. A fork of react-chessboard.

A nodeJS package that utilises the internal API for chess.com, allowing for live-updating information.

Vue 3 adapter for the official Lichess PGN viewer

lichess.org chess ui

Renders a chess board using React

xiangqi-engine written in pure js

Open-Source Chess Engine in TypeScript.

Set of professional chess components

R.O.C.K. chess game logic

A Javascript chess library for chess move generation/validation, piece placement/movement, and check/checkmate/draw detection. Chess960 support included.

Board game clock core.

Chess engine built in Javascript using the alpha-beta algorithm

Remote Chess Engine, ready to process position analysis tasks via Remote Interface for Chess Positions Analysis (RICPA)

A Chinese chess framework that supports browsers and nodejs(一款运行在浏览器和nodejs环境的中国象棋框架)

Parser for Swiss-Chess Tournament (SWT) files

## Getting started

Free chess opening books for use with the CeruleanJS chess engine

Onix chess library

Lobby service for Koishi

A chess board component for Vue JS (>= 3), written in Typescript.

Ready to use react component for chess analysis

Calculate chess achievements based on moves

PIXI.js based renderer to create 5d chess boards based off of 5d-chess-js

Instantiate Chess positions and apply Chess moves.

A chessboard component for React, inspired by chessboard.js

A chessboard component for React, inspired by chessboard.js

A direct port of `python-chess` to TypeScript!

A promise-based interface for the Free Internet Chess Server

Calculates Elo rating.

Abstraction layer to run chess engines, supports opening books

Chessboard drawable into HTML5 canvas

A wrapper to access information from the public chess.com API

Chess command line utilities.

JavaScript connector for DGT electronic chess boards

Simple chess board

<div align="center"> <img width="200" align="center"src="https://raw.githubusercontent.com/sockgore/node-chessboard/main/assets/opus.gif"/><br/> <p style="font-size:30px; font-weight:600;margin-top:8px;color:#bfa584;">node-chessboard</p> <p

A cm-chessboard plugin which knows the rules of chess to validate moves, support promotions and does some fancy square marking.

Yet another chess engine.

chess board logic

中国象棋 CLI 程序（通过git交换数据的PVP）

A powerful browser-only chess engine package that bundles Stockfish for position evaluation and analysis on top of chess.js

Polyglot is a node module to search moves in polyglot format opening books.

The React Chessboard SVG Library used at ChessOpenings.co.uk.

Javascript library used to manipulate 5d chess time controls. Includes definition for 5d chess time control notation.

React warp for chessground <https://github.com/ornicar/chessground>

This node.js module exports a generic min-max algorithm, alongside some implementations This package comes with full typescript support!

PNaCl port of the strong chess engine Stockfish with multi-variant support

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

lichess.org chess ui

Svelte chessboard component. A Svelte wrapper for the full-featured Chessground chess UI.

Mini games as extensions for the cm-chessboard

Chess clock engine

Chess game logic written in typescript

godot stockfish

An ES6 port of the polyglot opening book reading and handling parts of evilwan/stakelbase

Fully playable chess component for Svelte. Powered by @jacksonthall22/chess.ts logic, Chessground chessboard and optionally Stockfish chess AI.

Provides results of the user's choice of moves necessary to progress a chess game. A rudimentary chess engine is provided for play vs the computer.

A React-based chess game component with an interactive interface, piece movement validation, and customizable styling.

Cchess move validator in node

封装了一个中国象棋算法

PGN viewer widget, designed to be embedded in content pages.

A simple USI shogi engine implemented in Zig

The React Chessboard Library used at ChessOpenings.co.uk. Inspired and adapted from the unmaintained Chessboard.jsx.

Create HTML checkerboard-like Board Games

Fischer Random Chess / Chess960 library

A NodeJS wrapper for the Lichess API

Extended lishuuro.org Chess UI

Like chess.js, but in ES6 and can handle variations (tree-structured move history)

A javascript library for chess logic.

A lightning fast [PGN](https://en.wikipedia.org/wiki/Portable_Game_Notation) parser.

A TypeScript interface for interacting with a chess engine

Immutable chess board with move validation

Onix chess board abstractions

Node Chess Engine Server

Really dumb but valid Chess AI.

A chess engine for JavaScript projects.

An object-oriented chess game played in the terminal. Still a a work in progress, but will be testing soon!

port of cm-chessboard to es5.

Validate and parse Forsyth-Edwards Notation (FEN) used to describe a chess game board position.

A rudimentary chess engine and command-line interface.

A JavaScript chessboard which is lightweight, ES6 module based, responsive, SVG rendered and without dependencies.

Encode and decode TCN, a move format used by Chess.com's API

chess diagram react component

A turn based timer in javascript

A TypeScript+ThreeJS library to render a 3D chessboard

The React Chessboard Library used at ChessOpenings.co.uk. Inspired and adapted from the unmaintained Chessboard.jsx.

A lightweight, framework-agnostic chess engine written entirely in TypeScript

Algorithm of Nth order Gomoku in OOP

Chess and chess variant rules and operations

Generate PNG images of chessboard positions, based on specified chess notation.

Client for chess steganography - Hiding messages in chess games

Wrapper for the Lichess Opening Explorer public API written in node.js

Makruk (thai chess)

React components for minotaur chess engine

Federated Wiki - Chess Plugin

A complete Chess library for playing and generating moves

A chess board Web Component

Node Chess Engine Server

Board games 3D/2D UI and AI web library

Manage chess variation tree state - next/previous moves, variations...