Browse free open source System software and projects for Mac and BSD below. Use the toggles on the left to filter open source System software by OS, license, language, programming language, and project status.

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  • 1
    libusb

    libusb

    A cross-platform library that gives apps easy access to USB devices

    Library to enable user space application programs to communicate with USB devices
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    Downloads: 4,080 This Week
    Last Update:
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  • 2
    JBoss Community
    Community driven projects featuring the latest innovations for cutting edge apps. Our flagship project JBoss AS is the leading Open Source, standards-compliant, Java EE based application server implemented in 100% Pure Java.
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    Downloads: 292 This Week
    Last Update:
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  • 3
    This is Java 2 Micro Edition (J2ME) CLDC/MIDP Emulator. Allows demonstrate MIDlet based applications in web browser applet, also can be run as standalone java application.
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    Downloads: 227 This Week
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  • 4
    Allows editing of any size file in hexadecimal, decimal and ASCII. A great tool that allows you to edit and analyze the contents for either the data or resource fork of any type of file. 68K, PPC and Carbon run on MacOS 7-9 and X.
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    Downloads: 181 This Week
    Last Update:
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    Go from Code to Production URL in Seconds

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  • 5
    SocketTest - powerful and small software tool for socket testing. It can create both TCP and UDP client or server. It can be used to test any server or client that uses TCP or UDP protocol to communicate.
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    Downloads: 103 This Week
    Last Update:
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  • 6
    pngcrush and other tools for manipulating PNG (Portable Network Graphics) and MNG (Multiple-image Network Graphics) files.
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    Downloads: 119 This Week
    Last Update:
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  • 7
    7-Zip-JBinding

    7-Zip-JBinding

    Java wrapper for 7z archiver engine

    Native (JNI) cross-platform library to extract (password protected, multi-part) 7z Zip Rar Tar Split Lzma Iso HFS GZip Cpio BZip2 Z Arj Chm Lhz Cab Nsis Deb Rpm Wim Udf archives and create 7z, Zip, Tar, GZip & BZip2 from Java.
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    Downloads: 31 This Week
    Last Update:
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  • 8

    ISAM File handler

    ISAM file handler compatible with the leading commercial ISAM

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    Downloads: 17 This Week
    Last Update:
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  • 9
    Joone is a neural net framework written in Java(tm). It's composed by a core engine, a GUI editor and a distributed training environment and can be extended by writing new modules to implement new algorithms or architectures starting from base component
    Downloads: 10 This Week
    Last Update:
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    Gemini 3 and 200+ AI Models on One Platform

    Access Google's best plus Claude, Llama, and Gemma. Fine-tune and deploy from one console.

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  • 10
    Orbada - Database manager

    Orbada - Database manager

    Database SQL, query tool, using JDBC for Oracle,SQLite,PostgreSQL,etc

    ORBADA is a database, SQL, query client using JDBC drivers. It is a tool to administrate and manage database structure. It Is for Oracle, SQLite, Firebird, HSQLDB, DerbyDB, MySQL, PostgreSQL and other databases.
    Downloads: 12 This Week
    Last Update:
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  • 11
    JNode is a Java New Operating system Design Effort. JNode is a simple to use and install Java operating system for personal use on modern devices. Any java application runs on it, fast and safe. See our homepage for additional information.
    Downloads: 10 This Week
    Last Update:
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  • 12

    COBOL copybook to XML converter

    Converts cobol copybooks to Xml/Java objects

    CB2XML (CopyBook to XML) is a COBOL CopyBook to XML converter written in Java and based on the SableCC parser generator. This project includes utilities to convert an XML instance file into its COBOL copybook equivalent string buffer and vice versa. Source is now available in GitHub: https://github.com/bmTas/cb2xml
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    Downloads: 11 This Week
    Last Update:
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  • 13

    PHP - Net_RouterOS

    A client for the MikroTik RouterOS API protocol, written in PHP.

    A client for the MikroTik RouterOS API protocol, written in PHP. Easy, tested and documented. All feedback welcomed.
    Downloads: 9 This Week
    Last Update:
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  • 14
    libusbx

    libusbx

    libusbx is OBSOLETE - use http://libusb.info

    libusbx is OBSOLETE and has been superseded by http://libusb.info
    Downloads: 9 This Week
    Last Update:
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  • 15
    Atricore’s JOSSO is an open source and commercially supported Internet Single Sign-On (FSSO) solution for point-and-click and standards-based (SAML2) Internet-scale SSO implementations. For more information contact us at : http://www.josso.org
    Downloads: 7 This Week
    Last Update:
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  • 16
    Avis is a multicast event bus. It provides a fast, publish/subscribe event routing service compatible with the commercial Elvin implementation developed by Mantara Software.
    Downloads: 17 This Week
    Last Update:
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  • 17
    HyperPool
    HyperPool is a 100% pure Java project for network services management. TCP (HTTP/1.1, HTTPS, FTP, SMTP, POP3), UDP and SOCKS5 protocols support. Configurations: proxy, web server, mail server, download manager, port mapping.
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    Downloads: 17 This Week
    Last Update:
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  • 18

    UnboundID LDAP SDK for Java

    A Java-based LDAP API

    A fast, comprehensive, and easy-to-use Java API for communicating with LDAP directory servers and performing related tasks like reading and writing LDIF, encoding and decoding data using base64 and ASN.1 BER, and performing secure communication.
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    Downloads: 3 This Week
    Last Update:
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  • 19
    SuperWaba is a Virtual Machine for handhelds. Runs in PalmOS, Windows CE, Win32, and is fully emulated under JDK/browser. Supports Exceptions, has a complete set of UI controls (Palm/WinCE), double and long, grayscale/color, sockets/serial/IR/Bluetooth
    Downloads: 10 This Week
    Last Update:
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  • 20
    The goal of this project is to make possible to access Progress database from any external program that can use sockets. The server (broker and agents) are written in Progress 4GL and made use of sockets capabilities of Progress V9.
    Downloads: 8 This Week
    Last Update:
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  • 21
    JBit
    JBit is small java application for mobile phones (MIDlet) that gives you a programmable 8-bit microcomputer. With JBit, you can edit, save, run and debug assembly (6502) programs directly on your phone.
    Downloads: 3 This Week
    Last Update:
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  • 22
    Jcapi will open the world of ISDN (Integrated Services Digital Network) programming to Java developers.
    Downloads: 4 This Week
    Last Update:
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  • 23
    MOSREF provides a secure, portable and dynamic environment for the development, deployment and management of network and host security auditing tools.
    Downloads: 4 This Week
    Last Update:
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  • 24
    NetworkTools has 2 components: A protocol analyzer which plays a TCP client or server or pipeline, which sits between a client and server and shows how they communicate. A port scanner can scan a range of IP addresses and ports. See screenshots.
    Downloads: 4 This Week
    Last Update:
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  • 25
    dbViZ is a Java application that allows users to easily visualize existing database schemas. Unlike ER-diagrams, dbViZ diagrams are lower level, describing the exact structure of the schema, yet they're customizable so users can focus on what they want.
    Downloads: 4 This Week
    Last Update:
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