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

  • Gen AI apps are built with MongoDB Atlas Icon
    Gen AI apps are built with MongoDB Atlas

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  • 1
    winPenPack

    winPenPack

    The portable software collection

    winPenPack is a project that aims at collecting the most frequently used and most popular open source applications made portable, so that they can be executed without installation from any USB Flash Drive or Hard Disk. The winPenPack suites offer a wide range of portable applications like office tools, internet tools, multimedia tools, development tools, security applications and other frequently used utilities. Everything you need, completely free, open source and portable!
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    Downloads: 616 This Week
    Last Update:
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  • 2

    UPnP PortMapper

    Manage port forwardings via UPnP

    The UPnP PortMapper can be used to easily manage the port mappings/port forwarding of a UPnP enabled internet gateway/router in the local network.
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    Downloads: 299 This Week
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  • 3
    FileBot

    FileBot

    The ultimate TV and Movie Renamer / Subtitle Downloader

    FileBot is the ultimate tool for renaming your movies, tv shows or anime and downloading subtitles. It's smart, streamlined for simplicity and just works. FileBot supports Windows, Linux and Mac, plus there's a full-featured command-line interface for all sorts of automation.
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    Downloads: 104 This Week
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  • 4
    OpenAS2

    OpenAS2

    AS2 1.1 server implementation in Java

    OpenAS2 is a java-based implementation of the EDIINT AS2 standard. It is intended to be used as a server. It is extremely configurable and supports a wide variety of signing and encryption algorithms. Supports very high traffic volume allowing parallel processing of files per partner. SUPPORT: Please use the Github issues and Discussions channels here: https://github.com/OpenAS2/OpenAs2App/ Requirements: - Java 11 or newer (tested with the LTS versions of Java up to 21) - Any OS that runs Java Planned enhancements in the next major release: - User interace configuration GUI - Certificate Exchange Management IMPORTANT: Java 8 is no longer supported.
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    Downloads: 70 This Week
    Last Update:
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  • Our Free Plans just got better! | Auth0 Icon
    Our Free Plans just got better! | Auth0

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  • 5
    GeoNetwork opensource - Metadata Catalog
    A web based Metadata Catalog Server for data description and discovery. Supports both generic and geospatial data discovery. It implements international standards (e.g. ISO19115/19139/19119, ISO19115-3, DCAT-AP, CSW 2.0, OGC API Records). It originates from the United Nations and is used by many governments as geoportal software. Active development and discussion takes place on GitHub and OSGeo Discourse. You can also connect directly with the companies supporting the development. Source code available on github https://github.com/geonetwork/
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    Downloads: 126 This Week
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  • 6
    Untangle
    Untangle is a Linux-based network gateway with pluggable modules for network applications like spam blocking, web filtering, anti-virus, anti-spyware, intrusion prevention, bandwidth control, captive portal, VPN, firewall, and more. Visit http://untangle.com
    Downloads: 19 This Week
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  • 7
    Java SIP softphone
    Peers is a very simple softphone. It's a SIP User-Agent, written in java, it works on windows, linux and mac. It can be used with SIP servers like opensips or asterisk IPBX. It supports G711 codec (PCMU and PCMA) and telephone-events (DTMF).
    Downloads: 14 This Week
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  • 8
    Phex - P2P Gnutella filesharing program

    Phex - P2P Gnutella filesharing program

    A P2P filesharing client which connects to the Gnutella network.

    Phex is a P2P filesharing client which connects to the Gnutella network. It is multi-plattform and malware-free. It offers advanced functionalities and integrates all common Gnutella extensions like multi-source downloads and advanced search features
    Downloads: 18 This Week
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  • 9
    Convert Webmail to POP3.Is also included a SMTP/POP3 tunneling system that allow send and receive email in a private network HTTP PROXY based. All connection are plugin based. Over 450 email server supported and tested, GMAIL POP3/SMTP over Proxy Network.
    Downloads: 8 This Week
    Last Update:
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  • Find Hidden Risks in Windows Task Scheduler Icon
    Find Hidden Risks in Windows Task Scheduler

    Free diagnostic script reveals configuration issues, error patterns, and security risks. Instant HTML report.

    Windows Task Scheduler might be hiding critical failures. Download the free JAMS diagnostic tool to uncover problems before they impact production—get a color-coded risk report with clear remediation steps in minutes.
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  • 10
    properJavaRDP is an open source Java RDP client for Windows Terminal Server. It is based on rdesktop, a SourceForge project. properJavaRDP runs on Java 1.1 up (optimised for 1.4), and works on Linux, Windows and Mac. It also includes log4j-java1.1.
    Downloads: 5 This Week
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  • 11
    Funambol is a mobile application server that provides push email, address book and calendar (PIM) data synchronization, and device management, leveraging the SyncML (OMA) protocol. For users, this means BlackBerry-like capabilities on commodity handsets.
    Downloads: 10 This Week
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  • 12
    BT-Sim is a BlueTooth simulator on a HCI level. The project alows to develop and test BT applications without using real BT hardware. It works in particular with PalmSource's Palm OS Simulator.
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    Downloads: 17 This Week
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  • 13
    Marathi / Hindi Typing
    Marathi Hindi Phonetic typing. We can type Marathi/Hindi typing as phonetic. Copy Marathi/Hindi, use any where. For any information Kindly contact nitin.tkarale@gmail.com
    Downloads: 5 This Week
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  • 14
    Dayon! (active)

    Dayon! (active)

    Remote assistance made easy!

    Dayon! is an open source remote desktop and assistance solution. It is easy to use, secure, requires no registration and is free for personal and commercial use!
    Downloads: 10 This Week
    Last Update:
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  • 15

    Linpac

    Amateur Radio AX.25 chat and PBBS program using Linux's AX.25 stack

    A modular console-oriented amateur radio AX.25 keyboard to keyboard chat and PBBS program using Linux's AX.25 stack. Includes support for multiple concurrent connected sessions, a unconnected (UI) message screen, and an automated packet message client
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    Downloads: 9 This Week
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  • 16
    CADI is an implementation of the JPIP standard (JPEG2000 Interactive Protocol - Part 9). CADI includes a JPIP server, a JPIP proxy, and a JPIP Client. CADI is designed and programmed with the aim to provide a flexible framework to test and develop ne
    Downloads: 6 This Week
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  • 17
    Torrent Search Engine

    Torrent Search Engine

    A fast cross-platform TorrentSearch client

    Torrent Search Engine: TorrentSearch is a framework and script language for searching Bit Torrent websites and search engines for torrents.
    Downloads: 4 This Week
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  • 18
    Bluetooth Instant Messenger Valhallachat
    Valhalla Chat is a Bluetooth Instant Messenger (IM), that provides a common messaging platform for mobile phones, desktop computers and pdas.
    Downloads: 3 This Week
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  • 19
    Welcome to the project page of the Open JMail Server - a scalable Java email server. Features POP, SMTP, IMAP, dynamic pluggable storage design, modular protocol handling, easy XML configuration and much more.
    Downloads: 3 This Week
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  • 20

    Serial-Master

    Serial/TCP terminal: ANSI color, logging, HEX input, & XLSX docs.

    Serial-Master is a comprehensive, cross-platform terminal application for both serial (COM) port and network communication, featuring a modern, intuitive graphical user interface (GUI) designed for simplifying debugging and monitoring tasks. Core Communication & Debugging Features Serial-Master is not just a basic terminal; it's a powerful tool with specialized features for data analysis and control: Advanced ANSI Color Display: Enhance data readability with support for ANSI color codes sent over the serial port. This feature can be conveniently enabled or disabled in the settings. Flexible Logging: Capture data accurately using two distinct logging modes: Raw Port Logging: Records the raw, unprocessed data stream directly from the COM port. Terminal Logging: Logs only the decoded (displayable) characters as seen in the terminal window Custom HEX Input: Allows engineers and power users to transmit precise, non-standard control characters by entering their HEX values
    Downloads: 3 This Week
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  • 21
    A universal platform for resource discovery and description that shares XML meta-data over existing peer-to-peer (P2P) networks such as Gnutella and JXTA.
    Downloads: 3 This Week
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  • 22
    pj-ntp-server

    pj-ntp-server

    Pure Java NTP server.

    Pure Java NTP server. Run as root/admin in cmd-mode without cmd argument, for example: java -jar pj-ntp-server.jar (server start on standart UDP/123-port) or run as root/admin in cmd-mode with UDP-port cmd argument, for example: java -jar pj-ntp-server.jar 1111 where 1111=udp-port of server listen. Need JRE-1.8. Source = https://github.com/harp077/pj-ntp-server If you like this - put a star on https://github.com/harp077/pj-ntp-server/ for support project please.
    Downloads: 3 This Week
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  • 23
    JmDNS is a java implementation of the IETF draft RFP multicast extensions for DNS. This project contains the needed elements for service discovery and service registration. It is compatible with Apple\'s Rendezvous service. This project has been moved to http://www.jmdns.org. This site is no longer actively maintained. Please visit us at our new home!
    Downloads: 3 This Week
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  • 24
    Driver support for 3D Controller Hardware. We hope to support SDL Input, DirectInput, and other major controller API's including game consoles and embedded systems.
    Downloads: 2 This Week
    Last Update:
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  • 25
    SetTime-java, tool to get time from a server machine and set this time in a client machine ! SetTime-java, ferramento feita para obter a hora de uma máquina server e setar este hora em uma máquina cliente !
    Downloads: 2 This Week
    Last Update:
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