Open Source C++ Communications Software

C++ Communications Software

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  • 1
    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: 581,712 This Week
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  • 2
    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: 204,406 This Week
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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: 12,567 This Week
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  • 4
    Telegram Desktop

    Telegram Desktop

    Telegram Desktop messaging app

    Telegram Desktop is the official C++/Qt-based cross-platform client for Telegram, implementing the full Telegram API and MTProto protocol for secure messaging, voice/video calls, file sharing, and chat features. It provides message sync across devices, supports themes, stickers, bots, and is actively maintained.
    Downloads: 992 This Week
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    aMule stands for all-platform eMule file-sharing program. It is affiliated with the eMule project and was forked from xMule on 08/2003. It connects to the eDonkey2000 network, supports Linux, Mac, Solaris, *BSD platforms, and nearly every processor arch. For development, feature requests, issues and bug reporting, go to the GitHub project page at https://github.com/amule-org/amule .
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    Downloads: 4,402 This Week
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  • 6
    Matroska is an open standard audio/video container format. Visit our homepage at http://www.matroska.org
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    Downloads: 3,400 This Week
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  • 7
    HP Linux Imaging and Printing

    HP Linux Imaging and Printing

    Hewlett-Packard's Linux imaging and printing software

    The Hewlett-Packard Linux Imaging and Printing Project provides a unified single and multi-function connectivity solution for Linux. For support and help, please visit https://launchpad.net/hplip
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    Downloads: 5,561 This Week
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  • 8
    WSJT

    WSJT

    Weak signal ham radio communication

    The WSJT project implements software for amateur radio communication using state-of-the-art digital techniques. Typical applications involve "DXing" at LF, MF, HF, and VHF+ frequencies, including meteor scatter and EME ("moonbounce"). Major emphasis is placed on weak-signal techniques. Summary Program Descriptions: WSJT-X supports the communication protocols FST4, FT4, FT8, JT4, JT9, JT65, Q65, MSK144, WSPR, FST4W, and Echo, each optimized for different sorts of radio-wave propagation. MAP65 and QMAP are designed for EME at VHF and higher frequencies. MAP65 provides a panoramic, polarization-matching receiver for the Q65 and JT65. modes. QMAP works together with WSJT-X to provide a panoramic receiver for Q65 modes covering a 90 kHz sub-band. Programs WSJT and WSPR are interesting primarily for historical reasons. They are superseded by WSJT-X.
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    Downloads: 2,997 This Week
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  • 9
    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: 2,454 This Week
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  • 10
    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: 2,268 This Week
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  • 11

    QModMaster

    Modbus TCP,RTU Master Software.

    QModMaster is a free Qt-based implementation of a ModBus master application. A graphical user interface allows easy communication with ModBus RTU and TCP slaves. QModMaster also includes a bus monitor for examining all traffic on the bus. QModMaster is based on libmodbus <http://www.libmodbus.org/> for modbus communication and on QsLog <https://bitbucket.org/codeimproved/qslog> for logging. Supports both Windows and Linux. For Windows a pre-compiled binary is availiable. It does not require instalation, just unzip and run. You can download the latest stable version from here <https://sourceforge.net/projects/qmodmaster/files/qModMaster-Win32-exe-0.5.2-3.zip/download>. Source code is availiable for Windows and Linux for compilation using Qt <http://www.qt.io/download>. Check out my modbus slave project <http://sourceforge.net/projects/pymodslave/>. Checkout the following youtube videos : <https://www.youtube.com/channel/UC3Tk2gE-KGtwOq8WWmb2R7g>
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    Downloads: 2,010 This Week
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  • 12
    fldigi

    fldigi

    Ham Radio Digital Modem Application

    Fldigi is a modem program for most of the digital modes used by radio amateurs today: CW, PSK, MFSK, RTTY, Hell, DominoEX, Olivia, and Throb are all supported. It can help calibrate a sound card to a time signal and do frequency measurement tests. NOTICE: You must proceed to the Files section to locate the correct fldigi, flrig etal download for your particular operating system. Do not blithely use the big green Download button! Use the "Files" menu item or the "Browse All Files" link.
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    Downloads: 2,246 This Week
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  • 13
    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: 1,392 This Week
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  • 14
    LocalSend

    LocalSend

    An open-source cross-platform alternative to AirDrop

    LocalSend is a free, open-source app that allows you to securely share files and messages with nearby devices over your local network without needing an internet connection. LocalSend is a cross-platform app that enables secure communication between devices using a REST API and HTTPS encryption. Unlike other messaging apps that rely on external servers, LocalSend doesn't require an internet connection or third-party servers, making it a fast and reliable solution for local communication.
    Downloads: 245 This Week
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  • 15
    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: 1,004 This Week
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  • 16
    Windows MBox Viewer

    Windows MBox Viewer

    Windows eml and mbox viewer.

    Free Windows Mbox Viewer. Gain access to mbox archives, single eml or single Outlook messages. View attachments and export single mails in eml format. Access large mbox files such as Google Takeout or Mozilla Thunderbird Archives. Development of mbox viewer continues now at github: https://github.com/eneam/mboxviewer **NOTE**: Windows Defender may sometimes report incorrectly that mbox-viewer contains malware. Please report the case to the development. Development will ask Windows Security to update Windows Defender rules to resolve the issue. Last time the incorrect detection was corrected by Microsoft Security within few hours. User will need to run Windows Update to install the latest updated detection rules.
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    Downloads: 1,040 This Week
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  • 17
    Snap7

    Snap7

    32/64 bit multi-platform Ethernet S7 PLC communication suite

    Snap7, through three specialized components: Client and the inedited Server and Partner, allows you to definitively integrate your PC based systems into a PLC automation chain. Designed to transfer large amounts of hi-speed data in industrial facilities, it scales easily, down to small Linux Arm boards such as Raspberry PI. Hi level object oriented wrappers are provided, currently C/C++, .NET/Mono, Pascal, LabVIEW, Python with many source code examples. Very easy to use, a full working server example is not bigger than the “Hello world”. Many projects/makefiles are ready to run to easily rebuild Snap7 in any platform without the need of be a C++ guru. Very detailed documentation provided.
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    Downloads: 814 This Week
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  • 18
    QPrompt

    QPrompt

    Personal teleprompter software for all video makers.

    Free teleprompter software for all video creators. Built with ease of use, fast performance, control accuracy, and cross-platform support in mind. QPrompt works with studio teleprompters and tablet teleprompters, cellphones, and webcams. It was also designed for use in video conferences.
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    Downloads: 1,543 This Week
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  • 19
    CubicSDR

    CubicSDR

    Cross-Platform Software-Defined Radio Application

    CubicSDR is a cross-platform Software-Defined Radio (SDR) application that enables users to tune into and visualize a wide range of radio signals. It supports various SDR hardware, providing a flexible interface for exploring the radio spectrum. CubicSDR is useful for hobbyists, amateur radio operators, and professionals interested in radio communications.
    Downloads: 152 This Week
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  • 20
    E-MailRelay

    E-MailRelay

    SMTP email proxy and relay server

    E-MailRelay is a simple SMTP proxy and relay MTA, written in C++, for Linux and Windows. As a proxy all messages can be passed through a user-defined program, such as a spam-filter, which can drop, readdress, or edit messages as they pass through.
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    Downloads: 555 This Week
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  • 21
    VoIP monitor

    VoIP monitor

    VoIP SIP and SKINNY quality analyzer and packet / audio recording tool

    VoIPmonitor is open source network packet sniffer with commercial frontend for SIP SKINNY MGCP RTP and RTCP VoIP protocols running on linux. VoIPmonitor is designed to analyze quality of VoIP call based on network parameters - delay variation and packet loss according to ITU-T G.107 E-model which predicts quality on MOS scale. Calls with all relevant statistics are saved to MySQL or ODBC database. Optionally each call can be saved to pcap file with either only SIP / SKINNY protocol or SIP/RTP/RTCP/T.38/udptl protocols. VoIPmonitor can also decode audio.
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    Downloads: 437 This Week
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  • 22
    MSHV

    MSHV

    MSHV Amateur Radio Software

    MSHV Amateur Radio Software. Developed by LZ2HV - Christo mail: lz2hv@abv.bg Supported working modes: MSK144 MSKMS JTMS FSK441 FSK315 ISCAT JT6M FT8/4 JT65 PI4 Q65 System Requirements: Microsoft Windows Xp, Windows 7,8,10,11 32 or 64 Bit, Linux Fedora (Red hat), Ubuntu (Debian) . Compiling: MinGw recommended GCC 7.3.0 thread model posix. QT5.6.3 library. IDE recommended QDevelop 0.29. All other libraries included inside the source. Acknowledgements to K1JT Joe Taylor and WSJT Development Group. The algorithms, source code, look-and-feel of WSJT-X and related programs, and protocol specifications for the modes FSK441, FT8, JT4, JT6M, JT9, JT65, JTMS, QRA64, ISCAT, MSK144, are Copyright © 2001-2017 by one or more of the following authors: Joseph Taylor, K1JT; Bill Somerville, G4WJS; Steven Franke, K9AN; Nico Palermo, IV3NWV; Greg Beam, KI7MT; Michael Black, W9MDB; Edson Pereira, PY2SDR; Philip Karn, KA9Q; and other members of the WSJT Development Group.
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    Downloads: 622 This Week
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  • 23
    gSOAP Toolkit

    gSOAP Toolkit

    Development toolkit for Web Services and XML data bindings for C & C++

    The gSOAP toolkit is an extensive suite of portable C and C++ software to develop XML Web services with powerful type-safe XML data bindings. Easy-to-use code-generator tools allow you to directly integrate XML data in C and C++. Serializes native application data in XML. Includes WSDL/XSD schema binding and auto-coding tools, stub/skeleton compiler, Web server integration with Apache module and IIS extension, high-performance XML processing with schema validation, fast MIME/MTOM streaming, SOAP and REST Web API development, WS-* protocols (WS-Security, WS-Policy, WS-ReliableMessaging, etc), XML-RPC and JSON. Licensed under GPLv2. Visit the developer center with guides, tutorials, and examples at www.genivia.com/dev.html The documentation of the toolkit, libraries, plugins and more is available at www.genivia.com/docs.html Commercial-use licenses and expert technical support services are available at competitive pricing levels, please visit www.genivia.com/products.html
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    Downloads: 356 This Week
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  • 24
    qBittorrent Enhanced Edition

    qBittorrent Enhanced Edition

    qBittorrent Enhanced, based on qBittorrent

    qBittorrent Enhanced Edition is an unofficial fork of qBittorrent that adds peer-control and anti-leeching tools to the familiar open-source BitTorrent client. It is written primarily in C++ with Qt and uses libtorrent for protocol and transfer operations. The enhanced build can automatically block several identified downloader clients and optionally reject selected unknown or media-player peers. Users can maintain peer whitelists and blacklists for more precise connection control. It retains qBittorrent’s desktop client foundation while adding enhanced APIs, tracker-list updating, country resolution, and a distinct client identity. Packages are available for Windows, macOS, and multiple Linux distributions, but private-tracker users should confirm that the modified client is permitted.
    Downloads: 72 This Week
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  • 25
    Send files to TV

    Send files to TV

    Easily transfer files to your Smart TV from Android or Windows

    SFTTV is a simple application to connect your Smart Tv android, your android mobile device and your personal computer. It allows you to quickly and easily share movies, tv show or ANY files between these devices through your local network. No Internet required. SFTTV is designed to be simple. The application discover automagically other devices on the local network with SFTTV installed. Transfer large files in record time SFTTV is faster than Bluetooth. SFTTV is the fastest and most private way to send files to your TV Cross platform SFTTV runs also on Windows, macOS, and Linux. Files can easily be transferred between machines running different operating systems. In order to use SFTTV on your local network, you will need to install the android application on your TV and on each device that you wish to use for transferring files. SFTTV has a really easy to use user interface!
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    Downloads: 1,050 This Week
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