Open Source C++ Communications Software

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

  • Host LLMs in Production With On-Demand GPUs Icon
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    PRTG Catches Network Issues Before They Cause Downtime

    Threshold-based alerts flag problems early, so your team can act before users notice, not after.

    Reactive troubleshooting usually means hearing about a problem from frustrated users, not your monitoring tool. PRTG sets threshold-based alerts across devices, servers and applications, notifying your team by email, SMS or push the moment a metric crosses a set limit. That means catching a failing disk or overloaded server before it becomes an outage and getting time back from firefighting. Start a free trial and set your first alerts today.
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  • 1
    WinSCP

    WinSCP

    WinSCP is a free SFTP, SCP, S3, WebDAV, and FTP client for Windows.

    WinSCP is a popular free file manager for Windows supporting SFTP, FTP, FTPS, SCP, S3, WebDAV and local-to-local file transfers. A powerful tool to enhance your productivity with a user-friendly interface and automation options like .NET assembly or batch file scripting. Use WinSCP also for file editing, directory synchronization and site management. WinSCP is open-source and well documented. It is available in English and many other languages.
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    Downloads: 945,856 This Week
    Last Update:
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  • 2
    qBittorrent

    qBittorrent

    A free and reliable P2P BitTorrent client

    An advanced and multi-platform BitTorrent client with a nice Qt user interface as well as a Web UI for remote control and an integrated search engine. qBittorrent aims to meet the needs of most users while using as little CPU and memory as possible.
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    Downloads: 836,783 This Week
    Last Update:
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  • 3

    eMule

    A free peer-to-peer (P2P) file sharing client

    eMule is a free peer-to-peer (P2P) file-sharing client for Microsoft Windows that was launched in 2002 as an alternative to eDonkey2000. To date, eMule is one of the world’s largest and most trustworthy P2P file-sharing clients. eMule includes advanced search features, file checks for corruptions while downloading, a preview while downloading function, and a credit system to reward frequent uploads.
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    Downloads: 13,365 This Week
    Last Update:
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  • 4
    FileZilla®

    FileZilla®

    A fast cross-platform FTP client

    FileZilla® is a cross-platform FTP, SFTP, and FTPS client with a vast list of features, which supports Windows, Mac OS X, Linux, and more. FileZilla's dynamic tools help you move files between your local machine and your Web site's server effortlessly. For example, Filezilla lets you compare your files with in-directory server files to manage file syncing. You can also tab browse between servers and transfer files to them simultaneously, as well as edit server files on the go. And Filezilla is available in 47 languages worldwide!
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    Downloads: 3,816 This Week
    Last Update:
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  • MongoDB Atlas runs apps anywhere Icon
    MongoDB Atlas runs apps anywhere

    Deploy in 115+ regions with the modern database for every enterprise.

    MongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.
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  • 5
    BeeBEEP (Free Office Messenger)

    BeeBEEP (Free Office Messenger)

    You can message and share files inside your intranet without a server.

    BeeBEEP is a free, open-source, peer-to-peer (P2P) desktop LAN chat and office messenger built with end-to-end encryption (Rijndael Algorithm, AES). Designed for local area networks, this free cross-platform messaging app enables instant messaging, group chat, and secure file sharing across your office, home, or intranet—completely serverless and offline. Whether you need a private LAN chat application for your team or a secure office communicator over VPN, BeeBEEP operates without central servers or cloud dependencies. It is a free, serverless chat solution for Windows, Linux, and macOS where privacy, data security, and local network communication are essential.
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    Downloads: 2,856 This Week
    Last Update:
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  • 6
    Shareaza

    Shareaza

    A universal P2P file sharing client for Windows

    Shareaza is a very powerful multi-network peer-to-peer file-sharing client supporting Gnutella² G2, Gnutella, eDonkey2000 / eMule, DC++, HTTP, FTP and BitTorrent / DHT protocols for Windows or Wine.
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    Downloads: 1,444 This Week
    Last Update:
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  • 7
    DC++

    DC++

    A Windows client for the Direct Connect networks

    DC++ is an open source Windows client for the Direct Connect file sharing network. The DC network is a decentralized network, made up of individual servers (hubs) that users join to share files with other members on that hub. Each hub is individually run by a fellow user of the DC network, and may have certain themes to the content on the hub. Hub owners set up rules to regulate their hub as they see fit.
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    Downloads: 954 This Week
    Last Update:
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  • 8
    Psi+

    Psi+

    Psi+ Project — development branch of Psi XMPP client

    Psi is a cross-platform powerful XMPP client designed for experienced users. Psi+ is a development branch of Psi XMPP client. Previously is was a sort of fork but now just consider it as a space for nightly builds.
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    Downloads: 398 This Week
    Last Update:
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  • 9

    aria2 - CLI Metalink/BitTorrent client

    A multi-protocol & multi-source, cross platform download utility

    aria2 is a multi-protocol & multi-source, cross platform download utility. The supported protocols are HTTP(S), FTP, BitTorrent, Metalink. It can download a file from multiple sources/protocols and tries to utilize your maximum download bandwidth.
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    Downloads: 89 This Week
    Last Update:
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  • 10
    ApexDC++

    ApexDC++

    The pinnacle of file-sharing and chat - an innovative DC client!

    ApexDC™ is an innovative Direct Connect client based on the DC++ and StrongDC++ projects. Direct Connect provides a rare blend of seamless file sharing and community based chat and messaging between users. ApexDC features plugins and scripting through Lua and much more. Both operators and users alike should find it a pleasant experience. Note: as of May 28th 2016 ApexDC is now primarily distributed as two separate installers one targetting 32bit and the other 64bit operating systems. Additionally XP compatible binaries are now only offered as a separate download from the files section.
    Downloads: 63 This Week
    Last Update:
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  • 11
    EiskaltDC++

    EiskaltDC++

    Program for filesharing using Direct Connect and ADC protocols

    EiskaltDC++ is a cross-platform program that uses the Direct Connect and ADC protocols. It is compatible with DC++, FlylinkDC++, LinuxDC++ and other DC clients. EiskaltDC++ also interoperates with all common DC hub software.
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    Downloads: 99 This Week
    Last Update:
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  • 12
    Torrent File Editor

    Torrent File Editor

    Qt based GUI tool designed to create and edit .torrent files

    Project moved to https://torrent-file-editor.github.io/
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    Downloads: 34 This Week
    Last Update:
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  • 13
    Envy

    Envy

    Refined P2P Filesharing + BitTorrent

    Envy is a powerful multi-network p2p filesharing and torrent client for Windows or Wine. A mature mainstream fork of Shareaza. Highly skinnable, with BitTorrent/DHT, G2/Gnutella², Gnutella, ED2K/eMule, DC++, http/ftp protocols -and blacklist support baked in. Let others browse your public files.
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    Downloads: 15 This Week
    Last Update:
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  • 14
    PeerProject

    PeerProject

    Diverse P2P Filesharing

    PeerProject is a versatile peer-to-peer filesharing client and file manager. Intuitive and aesthetic while supporting many networks and features. BitTorrent, G2, Gnutella, eDonkey, DC++, IRC, http/ftp & more. Mainstream fork of Shareaza p2p, for Windows & WINE. Note: This project is idle, see Envy fork for further development.
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    Downloads: 6 This Week
    Last Update:
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  • 15
    A minimal web server with a simple GUI meant for fast and simple file sharing. Aims to be powerful yet easy to use.
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    Downloads: 10 This Week
    Last Update:
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  • 16
    Repeater controller and EchoLink software for Linux including a GUI, Qtel - the Qt EchoLink client. The SvxLink project has now moved to GitHub. The new home page for the project is http://svxlink.org/ .
    Downloads: 4 This Week
    Last Update:
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  • 17
    Anope Services are built off of the original Epona code written by Lara which is built off of IRC Services. These services have advanced the original Epona code and include new features such as Modules, Mysql, and Defcon Mode.
    Downloads: 2 This Week
    Last Update:
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  • 18
    gnubiff is a mail notification program that checks for mail, displays headers when new mail has arrived and allow to display first lines of new mails. Multiple protocols and frontends are supported.
    Downloads: 6 This Week
    Last Update:
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  • 19
    Lurker is a mailing list archiver designed for capacity, speed, simplicity, and configurability in that order. Noteworthy features include: google-style searching on all fields, chronology preserving threads, multilingual, and attachment support.
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    Downloads: 5 This Week
    Last Update:
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  • 20
    Weasel Reader is a document reader for Palm OS. It is Free Software covered by the GPL. It uses a document format called zTXT which is smaller than the PalmDOC format, but also reads PalmDoc files.
    Downloads: 5 This Week
    Last Update:
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  • 21
    KMess - Live Messenger client for KDE

    KMess - Live Messenger client for KDE

    MSN/Live Messenger chat client for Linux.

    KMess is an MSN/Live Messenger compatible chat client for Linux. The strength of KMess is it's integration with the KDE desktop environment, focus on Live Messenger specific features and an easy-to-use interface.
    Downloads: 0 This Week
    Last Update:
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  • 22
    You can 'wear' any clothes on the internet 'virtually' on your body (image). And this application stores the URL where you can buy the clothes, you can share your information like your good looking shot or your ratingson the clothe over internet.
    Downloads: 0 This Week
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  • 23
    We would like to develope a strategy game based on the story of Dune. It will a turn based strategy game. We make a game without violance
    Downloads: 0 This Week
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  • 24
    An eMule client that is based on the original one, but with a new credit system.
    Downloads: 0 This Week
    Last Update:
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  • 25
    An internet lobby application for online racing of RC racing game Re-Volt
    Downloads: 0 This Week
    Last Update:
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