Browse free open source Java Chess Games and projects below. Use the toggles on the left to filter open source Java Chess Games by OS, license, language, programming language, and project status.

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  • 1
    Jin is a Java client for various chess servers. It currently supports the Internet Chess Club (chessclub.com) and the Free Internet Chess Server (freechess.org) but is designed to be able to support any chess server.
    Leader badge
    Downloads: 38 This Week
    Last Update:
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  • 2
    XiangQi Wizard (Chinese Chess Wizard) is a powerful XiangQi (chinese chess) program, which supports UCCI engines. XQWizard Light is the Mobile version for Windows CE and Java ME. ElephantEye is the UCCI engine in XQWizard with strong AI.
    Downloads: 34 This Week
    Last Update:
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  • 3
    jose is a graphical Chess tool. >>> moved to https://peteschaefer.github.io/jose <<< You can store chess games in a database. You can view and edit games (including variations and comments). You can play against a plugged-in chess engine and use it for analysis. Features 3D board view.
    Downloads: 24 This Week
    Last Update:
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  • 4
    chessPDFBrowser

    chessPDFBrowser

    Chess application whichs allows working with chess PDF books and PGNs.

    Chess application which allows working with PDFs and PGNs. You can work with the chess games of the PDF and edit their tree of variants. Graphical environment. Standard PGN TAGs. PGN comments. Ocr like (Fen string detection from chess board position images). Connection to Uci chess engines (like stockfish). Position analysis, full game analysis. You can now play games against uci engines. pdf2pgn command line command included. Detailed documentation. Multilanguage currently support for English, Spanish and Catalan. Dark mode option. JDK-17 compatibility
    Downloads: 26 This Week
    Last Update:
    See Project
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  • 5
    Mediocre is a Java-based chess engine, implementing features like LMR, SEE, history and killer moves heuristics, transposition tables, internal iterative deepening, PVS search etc.
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    Downloads: 4 This Week
    Last Update:
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  • 6
    Capa chess

    Capa chess

    Chess program

    Capa chess is a chess program. Features built-in simple engine, interface with external XBoard/WinBoard and UCI engines, basic plug-in capabilities, import/export, 2D/3D boards with customization. Java JRE 1.8 or above required.
    Downloads: 5 This Week
    Last Update:
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  • 7
    JavaPairing is a tool to manage a chess tournament. It is pure Java and can run as is on any platform, including Windows, Linux and Macintosh (JRE 1.6 or more required). It is free and open source under the GPLv3 license. Dutch, Dubov, r.r., Amalfi
    Leader badge
    Downloads: 15 This Week
    Last Update:
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  • 8
    Mobile Chess and Flash Chess
    Mobile Chess (for Java ME) and Flash Chess (for Web) with Strong Chess AI, see http://mobilechess.sourceforge.net/. Java Applet Chess and Ajax Chess are also available. Mobile Chess is sponsored by Chess Wizard now, see http://www.chess-wizard.com/.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 9
    Chess Editor is a pure Java tool to create, edit and view chess games in the Portable Game Notation (PGN) format. The tool integrates with externally specified chess engine programs to provide analysis of board positions.
    Downloads: 10 This Week
    Last Update:
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  • 10
    It is a Shogi - Japanese Chess - game made in Java, where you can play against one of 3 AI's of your choice. Or against a friend.
    Downloads: 5 This Week
    Last Update:
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  • 11
    Strong Java Chess Engines Game

    Strong Java Chess Engines Game

    SJCE - free portable cross-platform graphical chess game, 100% Java.

    SJCE - Strong Java Chess Engines, free portable cross-platform graphical chess game, 100%-pure Java. Support with including many best free/open-source java xboard/uci chess engines. It is possible to play both White and Black. It is possible to play Human to Human, Human vs Engine, Engine vs Engine. Simple and intuitive GUI - Graphical User Interface. Tested on Windows/Linux. Need jre1.8 - https://www.oracle.com/java/technologies/javase/javase8-archive-downloads.html. Source - https://github.com/harp077/sjce If you like this - put a star on https://github.com/harp077/sjce/ for support project please.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 12
    Fen2Pdf

    Fen2Pdf

    Tool for chess teachers to create PDF files with chess diagrams in it

    Tool for chess teachers to create PDF files with chess diagrams in it. 1) Create a pgn file with chess diagrams (FEN notation) in it (e.g by using lichess) 2) Open the Fen2Pdf and select the folder containing the pgn(s) 3) Click start. Fen2Pdf detects the pgn files in it and creates a pdf file You can now print this file and hand the exercises over to your students Extra features: * Mirror the positions. This is handy if you want the same problems presented for the other color for educational purposes. You could present the same set of exercises in 2 different ways! * You can toggle the display of page numbers * The selected pgn folder is saved for next time * The title on the pages is the name of the pgn (without .pgn)
    Downloads: 8 This Week
    Last Update:
    See Project
  • 13
    BagaturChess

    BagaturChess

    Java Chess Engine

    This is UCI Chess Engine writen in Java. Since version 1.4 (inclusive) the project was moved to https://github.com/bagaturchess/Bagatur
    Downloads: 4 This Week
    Last Update:
    See Project
  • 14
    Chesspresso is a chess library entirely written in Java. The main focus is to deliver high-level interfaces and efficient algorithms to programmers of Java chess software.
    Downloads: 2 This Week
    Last Update:
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  • 15
    Chess Diagram Editor
    Chess Diagram Editor is a simple program to create chess diagrams. The program supports GIF, JPG, PNG as well as FEN files.
    Downloads: 6 This Week
    Last Update:
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  • 16

    Combinatorial Game Suite

    A computer algebra system for research in combinatorial game theory.

    STARTING WITH VERSION 2.0, CGSUITE HAS MOVED TO GITHUB. The latest version can be found at the CGSuite homepage: https://www.cgsuite.org/ This page is preserved for archival purposes only and is no longer being maintained.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 17
    Java Open Chess
    Java Open Chess is a project written in Java in NetBeans IDE. There is possibility to play for 2 players on local computers and via network connection. There is also an option to play versus quite weak computer oponent. Stronger computer oponens will be implemented soon. ATTENTION: Requires Java 1.8 or higher!
    Downloads: 2 This Week
    Last Update:
    See Project
  • 18
    Pairfx

    Pairfx

    Chess pairing program for run through and round robin tournaments

    PairFX is a chess pairing program specialized for youth tournaments in schools and chess clubs . No installation required! Just Unzip it and go! (You can run any kind of tournament with it actually but it was written for chess in schools) It supports the organization of a so-called 'run through' tournament and round robin (everybody against everybody) tournaments Swiss pairings are not (yet) possible. Are you a chess teacher at school, or organize a separate tournament at the club? Try PairFX! The run through pairing system makes it possible for player to come and go whenever they want and also to keep players playing all the time. It is not round based , so not everybody has to be finished to allow new pairings to be made. This is really great when players play at different speed and works very well in the club or at school.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 19
    playbox.fx

    playbox.fx

    Collection of board games.

    Playbox.fx is a free, ad-free and still growing collection of board games. It is a private hobby project with no commercial goals. It contains Mahjong Solitaire, Draughts, Chess, Go, Halma, Nine Men's Morris and Peg Solitaire. The games can be played against a simple AI or locally against friends. There is a portable version (zip) for Linux. There is an installer (exe) and a portable version (zip) for Windows. Have fun and stay healthy, Markus.
    Downloads: 7 This Week
    Last Update:
    See Project
  • 20
    JChessBoard is a chess game written in Java that can be connected to another JChessBoard via a direct TCP/IP connection. No Internet Chess Server is required for playing. It also became a full featured PGN viewer and editor.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 21

    EloCalculator

    Elo Calculator - strictly implemented FIDE Rating Regulations

    This little tool might be helpful for chess players. The FIDE Rating Regulations (effective from 1 March 2024) are strictly implemented, therefore its calculation is hundred percent accurate. There is a Windows only version (Windows 7 or higher, .NetFramework 4.7.2 or higher (you don't need to worry about this with a current Windows 10 or 11)) ... and a Java version (Java 17 or higher).
    Downloads: 5 This Week
    Last Update:
    See Project
  • 22
    A J2ME MIDlet implementing a Portable Chess Board to run on a Java enabled Cell Phone. In order to download the binaries and/or the source files please follow the Files->MobileChessBoard link above.
    Leader badge
    Downloads: 5 This Week
    Last Update:
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  • 23

    2D Java Chess

    A two-dimensional classic game of Chess.

    A fun game of Chess in 2-D created in Java. This game has basic features implemented, but we expect to push out a multiplayer version soon.
    Downloads: 4 This Week
    Last Update:
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  • 24

    Cave Chess

    A Java chess engine using xboard protocol

    Downloads: 2 This Week
    Last Update:
    See Project
  • 25
    A chess-engine based on Java.
    Downloads: 2 This Week
    Last Update:
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