Open Source Communications Software

Communications Software

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

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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 SFTP and FTP client for Windows, a powerful file manager that will improve your productivity. It offers an easy to use GUI to copy files between a local and remote computer using multiple protocols: Amazon S3, FTP, FTPS, SCP, SFTP or WebDAV. WinSCP can copy files between two local folders too. Power users can automate WinSCP using .NET assembly. WinSCP is available in English and many other languages.
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    Downloads: 203,090 This Week
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  • 2
    Scrollout F1

    Scrollout F1

    An easy-to-use anti-spam email gateway

    • Designed for Linux and Windows email system administrators, Scrollout F1 is an easy to use, already adjusted email firewall (gateway) offering free anti-spam and anti-virus protection aiming to secure existing email servers, old or new, such as Microsoft Exchange, Lotus Domino, Postfix, Exim, Sendmail, Qmail and others. • Built-in multilayer security levels make configuration effort equal to a car radio. • It combines simplicity with effective protection using powerful open source with additional set of rules & filters. • Available as 64bit: - ISO image (Internet connection required during installation) - install from scratch (Internet connection required during installation). • Minimum Requirements (for 5,000 messages/day): 1 GB of RAM 30 GB storage drive 1 Processor x86/AMD64 1 Ethernet x 1 IPv4 address UDP ports: 53 123 4500 6277 24441 TCP ports: 25 80 443 2703
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    Downloads: 146,655 This Week
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  • 3
    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: 89,450 This Week
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  • 4
    Anti-Spam SMTP Proxy Server

    Anti-Spam SMTP Proxy Server

    Anti-Spam SMTP Proxy Server implements multiple spam filters

    The Anti-Spam SMTP Proxy (ASSP) Server project aims to create an open source platform-independent SMTP Proxy server which implements auto-whitelists, self learning Hidden-Markov-Model and/or Bayesian, Greylisting, DNSBL, DNSWL, URIBL, SPF, SRS, Backscatter, Virus scanning, attachment blocking, Senderbase and multiple other filter methods. Click 'Files' to download the professional version 2.8.1 build 24261. A linux(ubuntu 20.04 LTS) and a freeBSD 12.2 based ready to run OVA of ASSP V2 are also available for download. NOTICE: V1 development has been stopped at the end of 2014 (1.10.1 build 16060). Possibly there will be done some bugfixing in future. Please upgrade to V2, which is and will be actively maintained.
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    Downloads: 53,455 This Week
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  • 5

    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: 18,985 This Week
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  • 6
    Comgt is a command line tool for controlling, configuring and interacting with Option Wireless 3G and 2G ( HSDPA, UMTS, EDGE, GPRS, GSM) data devices within the Linux environment.
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    Downloads: 12,650 This Week
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  • 7
    Zero Install
    Zero Install is a decentralised cross-distribution software installation system. Create one package that works everywhere! With dependency handling and automatic updates, full support for shared libraries, and integration with native package managers
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    Downloads: 7,997 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 is designed for EME an VHF and higher frequencies. It provides a panoramic, polarization-matching receiver for the Q65 and JT65. modes. Programs WSJT and WSPR are interesting primarily for historical reasons. They are superseded by WSJT-X.
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    Downloads: 6,058 This Week
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  • 9
    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: 7,575 This Week
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  • 10
    Sshpass is a tool for non-interactivly performing password authentication with SSH's so called "interactive keyboard password authentication". Most user should use SSH's more secure public key authentiaction instead.
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    Downloads: 4,949 This Week
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  • 11
    IssabelPBX

    IssabelPBX

    Issabel PBX - Unified Communications

    Open Source and Unified Communications partners created a new platform based on an Elastix® fork (currently purchased by 3CX) to provide the community with continuity, peace of mind and support needed to continue with their PBX and operation developments. Contribute to the funding of Issabel on https://www.patreon.com/issabel
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    Downloads: 4,266 This Week
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  • 12
    Vuze - Azureus

    Vuze - Azureus

    An extremely powerful and configurable BitTorrent client

    Vuze (formerly Azureus) is an extremely powerful and configurable BitTorrent client. Search and download torrent files. Play, convert and transcode videos and music for playing on many devices such as PSP, TiVo, XBox, PS3, iTunes (iPhone, iPod, Apple TV).
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    Downloads: 4,168 This Week
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  • 13

    linuxptp

    PTP IEEE 1588 stack for Linux

    This project is an implementation of the Precision Time Protocol (PTP) according to IEEE standard 1588 for Linux.
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    Downloads: 4,249 This Week
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  • 14
    The portable Universal Plug and Play (UPnP) SDK provides support for building UPnP-compliant control points, devices, and bridges on several operating systems. The main repository is at GitHub in https://github.com/pupnp/pupnp. This is just a clone repository for legacy reasons. Old SourceForge repo: git://pupnp.git.sourceforge.net/gitroot/pupnp/pupnp
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    Downloads: 5,313 This Week
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  • 15
    RealTerm: Serial/TCP Terminal

    RealTerm: Serial/TCP Terminal

    Serial and TCP terminal for engineering and debugging

    Serial terminal program for engineering. Ideal for development, reverse engineering, debugging, datalogging and capture, and automatic test. The website is a comprehensive manual for Realterm. It has an comprehensive ActiveX/COM automation support so it can be used a serial component by other programs. An extensive commandline interface supports batch files and simple automatic test programming. Commands can be sent to running instances, and commands can be stored and run in files. [ActiveX](http://realterm.sourceforge.net/index.html#ActiveX_Interface) and [Command Line](http://realterm.sourceforge.net/index.html#Command_Line_Parameters) commands are well documented. Sourceforge major releases are only made occasionally. To follow development versions see News and subscribe.
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    Downloads: 2,826 This Week
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  • 16
    VTun is the easiest way to create Virtual Tunnels over TCP/IP networks with traffic shaping, compression, and encryption. It supports IP, Ethernet, PPP and other tunnel types. VTun is easily and highly configurable. VPN, Mobile IP, Shaping, etc
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    Downloads: 7,854 This Week
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  • 17
    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: 2,098 This Week
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  • 18
    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: 2,834 This Week
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  • 19

    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: 1,793 This Week
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  • 20
    BeeBEEP (Free Office Messenger)

    BeeBEEP (Free Office Messenger)

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

    BeeBEEP is a secure (encryption based on Rijndael Algorithm, AES) peer to peer office messenger. You can talk and send files with all your colleagues inside a local area network such of an office, home or internet cafe without a server. BeeBEEP works also with VPNs. This serverless application is indispensable in all those places where privacy and security an essential requirement. For more info visit: https://www.beebeep.net
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    Downloads: 1,646 This Week
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  • 21
    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.
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    Downloads: 1,693 This Week
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  • 22
    Windows MBox Viewer

    Windows MBox Viewer

    Windows eml and mbox viewer.

    Free Windows Mbox Viewer. Gain access to mbox archives or single eml 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: 1,721 This Week
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  • 23
    wsjt-x_improved
    ═══════════ ▲▲▲ ══════════════════════════════════════════════ Find the various versions on the "Files" tab (https://sourceforge.net/projects/wsjt-x-improved/files/) wsjt-x_improved is an enhanced version ("the DG2YCB edition") of the excellent WSJT-X software by Joe Taylor K1JT, Steve Franke K9AN, Bill Somerville G4WJS, me and others (https://sourceforge.net/projects/wsjt/). Sometimes, however, even good things can be improved … Notes: wsjt-x_improved is experimental and is licensed under GNU GPL v3 (https://www.gnu.org/licenses/gpl-3.0.txt). I am not aware of any adverse effects. However, use it at your own risk! Subscribe to the mailing list: https://sourceforge.net/projects/wsjt-x-improved/lists/wsjt-x-improved-community. If you want more, also take a look at my new jtdx_improved project (https://sourceforge.net/projects/jtdx-improved/).
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    Downloads: 1,495 This Week
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  • 24
    Pidgin IM

    Pidgin IM

    A universal instant messaging (IM) program

    See https://pidgin.im/about/ for more information. Pidgin is an instant messaging program which lets you log in to accounts on multiple chat networks simultaneously. It runs on Windows, Linux, and other UNIX operating systems. Pidgin is compatible with the following chat networks out of the box: AIM, ICQ, Google Talk, Jabber/XMPP, MSN Messenger, Yahoo!, Bonjour, Gadu-Gadu, IRC, MXit, Novell GroupWise Messenger, Lotus Sametime, SILC, SIMPLE, MySpaceIM, and Zephyr. It is written in C and makes heavy use of GLib and GTK+. Finch is a command line instant messaging program. It also lets you log in to accounts on multiple chat network simultaneously, and it is compatible with the same chat networks as Pidgin. It is written in C and makes heavy use of GLib and ncurses.
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    Downloads: 7,853 This Week
    Last Update:
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  • 25
    MyPhoneExplorer

    MyPhoneExplorer

    Simply explore your Android phone!

    Connect your phone via WiFi, cable or bluetooth and you'll be surprised how easy and efficient it will be to manage your Android based smartphone with our software. Since it's first release MyPhoneExplorer evolved into the most popular freeware tool for smartphones. The software is constantly updated with new features. In opposite to many other solutions MyPhoneExplorer does work complete locally without using any third-party server!
    Downloads: 1,422 This Week
    Last Update:
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Open Source Communications Software Guide

Open source communications software is software that allows people to communicate and collaborate over the Internet. It is free and open to anyone who wishes to use it. It typically includes features such as real-time chat, file sharing, video conferencing, and collaboration tools.

Open source communication software offers numerous advantages over traditional packaged programs, including cost savings, customization capabilities, and security measures. The primary benefit of open source communication software is that it can be adapted to fit an organization’s individual needs or preferences without having to pay for licensing fees or support contracts. Additionally, because the source code for this type of program is available freely online, developers can customize the underlying programming code in order to increase its functionality or tailor it specifically for their particular needs. Furthermore, many open source programs are subject to rigorous testing by volunteer developers prior to release, meaning users can enjoy a degree of confidence in the program’s ability to operate reliably and securely when using it online.

Lastly, from a business standpoint one of the biggest selling points of using open source communication software is that most implementations come free of charge meaning businesses do not have costly licensing fees associated with their use which helps keep operating costs low while still providing all the functionality they need for their business operations.

Open Source Communications Software Features

  • Instant Messaging: Instant messaging software allows users to send and receive messages in real-time. This feature can be invaluable for businesses that need to communicate with customers and colleagues quickly and efficiently.
  • Video Conferencing: Open source communications software typically provides video conferencing as well, enabling users to have face-to-face conversations with each other using their computers or mobile devices.
  • Voice Over IP (VoIP): VoIP is an increasingly popular method of communication that lets users make phone calls over the internet, thereby eliminating the need for physical phone lines and allowing businesses to save money on long distance charges.
  • Presence Detection: Most open source communications systems include presence detection capabilities, which allow users to see who else is available on the network at any given time so they can decide who best to contact for a particular task or discussion.
  • Text Chatting: Text chatting serves as an essential form of communication in many open source systems, giving individuals and groups a way to have asynchronous back-and-forth conversations without having everyone present at once.
  • Group Calling: Some open source systems also include group calling capabilities, allowing multiple participants from different locations to join together as part of one conversation or meeting.

Different Types of Open Source Communications Software

  • Instant Messengers: These are programs that can send and receive text messages in real time over the internet, allowing users to communicate instantly.
  • VoIP Software: This refers to technology that allows users to make voice and video calls over the internet, with no additional cost. They often come with features like conference calling, file sharing and other collaboration tools.
  • IRC Clients: Also known as Internet Relay Chat clients, these allow multiple people to communicate simultaneously via chat rooms and private conversations. Many of them also include audio and even video capabilities.
  • Web Conferencing Tools: These allow two or more people in different locations to connect online for virtual meetings or presentations. They usually have features such as screen sharing, whiteboard tools, file exchange platforms, etc.
  • Groupware Applications: Meant for businesses or teams working on projects together these offer a way to share files easily between collaborators. They often come with scheduling tools, contact management systems and document editors which encourage collaboration between team members who may be physically separated by distance.
  • Mobile Communications Software: This type of software allows you to stay connected even when away from home or office, using your mobile device (smartphone/tablet). It is popular among business travelers who need constantly access their work emails on the go without any lag time in communication

Advantages of Open Source Communications Software

  1. Cost Savings: Open source communications software may be available for free or at significantly lower costs than proprietary counterparts, allowing businesses to save money on license fees and other associated costs.
  2. Flexibility: Open source communication tools are highly customizable, allowing users to select the features that best meet their needs. This enables users to customize the software based on specific requirements, creating a product that is tailored for their exact needs.
  3. Scalability: As organizations grow and evolve over time, open source communication solutions can be easily scaled up or down depending upon user demand and resource availability. This makes it easy for businesses to scale as needed without sacrificing service quality.
  4. Security & Reliability: Most open source communications applications have been rigorously tested by developers around the world, ensuring they are reliable and secure platforms. Additionally, many offer encryption capabilities which keep private data secure from prying eyes.
  5. Quality Assurance: Open source projects rely on community feedback loops in order to ensure high levels of quality assurance across all application versions released – eliminating buggy releases often found in proprietary software packages with limited testing budgets.

What Types of Users Use Open Source Communications Software?

  • Business Professionals: These users employ open source communications software to streamline group collaboration, increase productivity, and eliminate the need for bulky hardware.
  • Home Users: Open source communications software is perfect for home users looking to keep in touch with family or friends far away. They often use these programs to send messages, share photos, or make video calls – all free of charge.
  • Students: College students can take full advantage of open source communication programs, enabling them to take classes remotely and collaborate on group projects easily and quickly.
  • Developers: Open-source communication tools are an invaluable resource for developers who need a platform where they can test out new designs and concepts without worrying about breaking production code.
  • Gamers: Many gaming communities rely on open source communication tools as a way to communicate within games and coordinate strategies among players.

How Much Does Open Source Communications Software Cost?

Open source communications software can cost anything from free to hundreds or even thousands of dollars, depending on the nature and scope of the project.

For small to medium-sized projects, open source communications software may be free or just a few hundred dollars. For example, Asterisk is an open source framework for building communication applications including voice and video chat, while Twilio is an API platform that enables developers to add voice and messaging capabilities directly into web and mobile applications. Both services are generally quite affordable—Asterisk may come at no charge for smaller projects, while a basic package for Twilio typically starts around $25 per month.

Projects that require more complex features such as scalability or customized application development will likely come with higher costs as these tend to be larger projects with lots of components involved. If you need enterprise-level features like support for multiple languages or access from multiple devices, you’ll likely have to pay several thousand dollars or more for the associated development work. Additionally, if the goal is ultimately to monetize your communication product any associated fees will impact its total cost.

What Software Can Integrate With Open Source Communications Software?

Open source communications software can often integrate with other types of software. For example, it can be combined with customer relationship management (CRM) software to enable businesses to keep detailed records of interactions with clients and customers. It can also be integrated with enterprise resource planning (ERP) systems in order to help manage the different tasks involved in running a business. Additionally, open source communications software can be linked up with productivity platforms such as project management tools or task tracking tools, so that teams are able to stay on top of what needs to be done. Finally, it can integrate with analytics platforms that offer insights into user behavior and how effective one's communication strategies are performing. All this makes open source communications an incredibly powerful tool for helping businesses stay organized and productive.

What Are the Trends Relating to Open Source Communications Software?

  1. Increased Accessibility: Open source communications software is becoming increasingly accessible to everyone, as these tools are often free or low-cost and require much less technical knowledge than traditional software.
  2. Increased Security: Open source communications software offers users a greater level of security than traditional software, as the code can be viewed and modified by anyone with access. This allows users to ensure that their data is secure and their conversations are private.
  3. Increased Customization: Open source communications software allows users to customize their experience to meet their unique needs, such as adding features or changing the look and feel of the platform.
  4. Increased Interoperability: Open source communications software supports multiple platforms, making it easier for people to communicate with each other across different devices and networks.
  5. Reduced Costs: The open source model eliminates many of the costs associated with traditional software, such as licensing fees and maintenance costs. This makes it an attractive option for businesses and organizations who want to save money.

How To Get Started With Open Source Communications Software

Using open source communications software is a great way to stay connected with family, friends, or colleagues in an easy and cost-effective way. Getting started is simple and straightforward.

First, search for available open source software that best meets your communication needs. There are several options available, ranging from projects that focus on privacy and security to those that provide video conferencing capabilities. Once you've made a selection, it's time to download the software onto your computer or mobile device. Be sure to read through any install instructions carefully; while many of these programs are free, some may require additional payments depending on how they are used or configured.

Next up is setting up your account with the new program—provide your login credentials (email address and password) and any other necessary information such as contact lists to create your profile. It's important to keep track of all this information so you can log in easily when needed.

Once everything is set up properly you can start using the software. This might include making calls via online chat services like Skype or WhatsApp, participating in group chats or videoconferences using programs like Google Hangouts or Slack, sharing photos or other documents with teammates using Dropbox or OneDrive, sending encrypted messages for secure data transfers over platforms such as Signal…the possibilities are endless. Although each program may have specific instructions for usage and access protocols , usually most of them come with support materials (such as help manuals) written in plain language so users can quickly learn their features and gain comfort before starting to use them regularly.
Familiarize yourself with the system and take advantage of tutorials if they're available – then you'll be ready to leverage this technology into staying connected more efficiently than ever before.