Open Source Windows Server Communications Software

Communications Software for Windows Server

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

  • Forever Free Full-Stack Observability | Grafana Cloud Icon
    Forever Free Full-Stack Observability | Grafana Cloud

    Our generous forever free tier includes the full platform, including the AI Assistant, for 3 users with 10k metrics, 50GB logs, and 50GB traces.

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    Our Free Plans just got better! | Auth0

    With up to 25k MAUs and unlimited Okta connections, our Free Plan lets you focus on what you do best—building great apps.

    You asked, we delivered! Auth0 is excited to expand our Free and Paid plans to include more options so you can focus on building, deploying, and scaling applications without having to worry about your security. Auth0 now, thank yourself later.
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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: 230,474 This Week
    Last Update:
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  • 2
    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: 2,766 This Week
    Last Update:
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  • 3
    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: 1,487 This Week
    Last Update:
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  • 4
    RapidCRC is a tool for windows for checking and creating CRC32 and MD5 checksums (.sfv/.md5 files). Goal is to use the fastest available (assembly) implementations for this task. Specialty: direct support for CRC32 checksums stored in filenames.
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    Downloads: 84 This Week
    Last Update:
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  • Enterprise-grade ITSM, for every business Icon
    Enterprise-grade ITSM, for every business

    Give your IT, operations, and business teams the ability to deliver exceptional services—without the complexity.

    Freshservice is an intuitive, AI-powered platform that helps IT, operations, and business teams deliver exceptional service without the usual complexity. Automate repetitive tasks, resolve issues faster, and provide seamless support across the organization. From managing incidents and assets to driving smarter decisions, Freshservice makes it easy to stay efficient and scale with confidence.
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  • 5
    AK SMS Sender

    AK SMS Sender

    GSM Modem based sms sending tool

    GSM modem based bulk sms sending tool. Mobile number and message can be imported from Microsoft Excel Worksheet (xlsx) and Text (txt) files to send sms using any GSM modem or phone connected with pc through usb or serial interface.
    Downloads: 15 This Week
    Last Update:
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  • 6
    YetiForce CRM

    YetiForce CRM

    The most affordable CRM system according to Capterra

    Are you looking for a system to boost your sales? Do you want to improve your relationships with customers? Do you want to contribute to the fastest growing open source project on GitHub? You can use YetiForce completely free of charge. With YetiForce’s help you will manage 12 business processes in your company, no matter the size. The vast number of features available for free helped us win the first place in Capterra’s “Most Affordable CRM Software” ranking. YetiForce’s open source code was released under a very flexible and liberal license, which gathers a large and active community around the project. You too can contribute to it no matter if you are a professional programmer or software development is just your hobby. Download YetiForce for free and find out why you should become one of more than 250 000 people who already use it. Testing versions: GitStable: https://gitstable.yetiforce.com/ GitDeveloper: https://gitdeveloper.yetiforce.com/
    Downloads: 10 This Week
    Last Update:
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  • 7
    eMule Plus
    eMule Plus is an evolution of the original eMule project, created to improve its abilities and features, in both work efficiency and user interface.
    Downloads: 29 This Week
    Last Update:
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  • 8
    Airfox

    Airfox

    Airfox is a free and fast web browser. It uses the Gecko Engine.

    Airfox is a fast, consistent, reliable, secure, private and independent web browser. Developed in the Microsoft .NET Runtime Environment, Airfox uses the Gecko Engine also seen in some well-known browsers such as Firefox, Waterfox, Pale Moon. Some advanced features such as Reliable Download Manager are not available due to restrictions from the GeckoFX runtime, but as seen from the results of the futuremark, acid 3 & acid 2 tests, Airfox’s scores/rankings are merit. We are just asking to support us by downloading Airfox and giving it a try. We promise that V2 will be just as good as the other famous browsers. We just want you to follow us on this journey. We want you to follow us on this quest. The quest for true browsing speed. The quest for an uncluttered web. The quest of YOUR ideal web . Download it at http://www.airfox.sourceforge.net
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    Downloads: 8 This Week
    Last Update:
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  • 9
    Denora is a set of Stats Services for IRC networks that allows IRC network admins to get a complete and comprehensive overview of their IRC network. Denora exports this information to MySQL, HTML XML and flatfile databases.
    Downloads: 9 This Week
    Last Update:
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  • Gemini 3 and 200+ AI Models on One Platform Icon
    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.

    Build, govern, and optimize agents and models with Gemini Enterprise Agent Platform.
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  • 10
    Mail Alert Simple Mailer

    Mail Alert Simple Mailer

    Mail Alert Simple Mailer

    Mail Alert Simple Mailer is a simple command-line utility designed for IT administrators for sending e-mail from Microsoft Windows OS. It can be executed from command line, Windows batch file or PowerShell scripts. My main reason for writing this software was to handle events generated by Dell OpenManage Server Administrator (OMSA), APC PowerChute and Windows Events to send hardware status and alerts like temperature alerts, UPS battery status, powerline status and RAID controller alerts from monitoring software. It can be used with any other software where you can configure external application to be executed when specific event occurs. Mail Alert Simple Mailer supports SSL and STARTTLS protocols, so it is compatible with many free e-mail providers like GMail, Hotmail, etc. Unlike other simple command line tools it supports ISO-8859-1, ISO-8859-2 and UTF-8 code pages for national characters. Mail Alert Simple Mailer encrypts SMTP password in configuration file.
    Downloads: 3 This Week
    Last Update:
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  • 11

    Darkbot

    The IRC's Talking Robot

    [ Please read https://sourceforge.net/p/darkbot/news/2014/01/darkbots-revitalization/ ] Darkbot is a portable IRC chat robot written in the C language that can be taught responses to user inquiries, and even have conversations with them. Darkbot was originally created by Jason Hamilton as an aid for help channels on Intenet Relay Chat.
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    Downloads: 8 This Week
    Last Update:
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  • 12
    Eclipse Mail

    Eclipse Mail

    eMail is a fork of Interlink for IA-32 i686 with more optimizations.

    Eclipse Mail is a fork of Interlink Mail and News made for Windows XP and runs on IA-32 i686 platforms. Some advantages over upstream and roytam1's mailnews are more optimizations and better interoperability with upstream. (using SQL storage intead of DBM)
    Downloads: 7 This Week
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  • 13
    SMPP protocol library for fast and easy SMSC(Short Message Service Centre) client development even for non-telecom guys. Easy to use classes covers all needed functionality for SMS applications developers and Content Providers. Written for .NET 2.0 in C#
    Downloads: 1 This Week
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  • 14
    Mr RSS Puller| RSS Reader/RSS Aggregator
    Pulls eNews, eBuzz... for you to read, or stores for later reading. Portable, small (98KB, 5sec download), easy to learn & use. No Spam. Connects to sourceforge.net at startup.
    Downloads: 1 This Week
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  • 15
    The OSP Toolkit is a client side implementation of the ETSI OSP VoIP Peering protocol (ETSI TS 101 321). The OSP Toolkit project was begun in 1998 and the code has been incorporated into many commercial and open source VoIP products.
    Downloads: 1 This Week
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  • 16
    AfterLogic WebMail Lite .NET
    Free and easy-to-use webmail script with AJAX interface. Supports POP3/IMAP accounts, SMTP, SSL. Users can check and send mail, use address book. Skins, non-English languages, UTF-8. MS SQL/MySQL/MS Access backends supported.
    Downloads: 1 This Week
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  • 17
    Feed Launch .NET

    Feed Launch .NET

    Feed Launch .NET is a feed editor for RSS 2.0 and ATOM 1.0 feeds.

    Feed Launch .NET is an open-source feed editor for RSS 2.0 and ATOM 1.0 Feeds. Full graphical interface allows for seamless feed management and feed creation, including uploading feeds via FTP. Feeds are automatically saved in XML format. Project released under GPL.
    Downloads: 1 This Week
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  • 18
    The MXControl project aims to create a set of tools to extend and administrate the Chat-channels on the WinMX Peernetwork. Part of this projects are BendMX that adds features to the Chat, and a full featured Chatbot for administrative and other tasks.
    Downloads: 1 This Week
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  • 19
    Prevent Screen Saver

    Prevent Screen Saver

    Randomly move mouse one pixel to prevent screensaver from activation

    The concept of PSS is simple. Allow users to override screen saver settings and control how/when Microsoft Lync displays your status as Green. If you are an advanced desktop user or happen to work in IT, VDI’s and Terminal server connections can be quite annoying to manage when the workstations or servers keep locking. This small utility has one simple task: move the mouse one pixel every 60 seconds and can be used to assist in many different ways to make our jobs and lives just a tad bit less annoying.
    Downloads: 1 This Week
    Last Update:
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  • 20
    An open source software project delivering converged voice and data applications. The StarPound platform enables you to rapidly develop voice and data solutions using the power of business process modeling. More info: http://www.starpound.org.
    Downloads: 1 This Week
    Last Update:
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  • 21
    ( pro ping )pinger network alert monitor

    ( pro ping )pinger network alert monitor

    Pinger alert, STATICTICAL TABLES, send EMAILs or SMS by SMS GATEWAY

    Thank you for your DONATIONS for Pinger alert, STATICTICAL TABLES, send EMAILs or SMS by SMS GATEWAY. Look on the tab files, select and download the version of the operating system that you need of this slight textual code that requires no system update. Network monitoring analyzer, network scanner with ping, traceroute and beeper alert and warning mail sender. Capable of scanning IP INFINIT, automatic detection of the source of network interruptions without GUI interface configurations. More, it is designed for the computer technician who carries a powerful tool in the USB key. In addition, an audible alarm warns you via Telnet or SSH terminal, a log files recorded can be used to convey specific information to the system administrator. It is comes with a configurable for warning by email. lightweight code, coming with the source files, written in C, Email warning sender, ANDROID ping, SPARC, AMD64, traceroute, DETECT SOURCE Downs, Warning by Email, C language
    Downloads: 0 This Week
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  • 22
    Next generation web-based, multi-tenant, distributed, mulit-lingual, inbound, outbound Video enabled VoIP & VVoIP call/ contact center solution for Asterisk with Built-in phone, IVR, CRM, Predictive dialer, ACD, Chat, Mail, Fax, Video and other features.
    Downloads: 0 This Week
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  • 23
    STS - SupportTicketsystem and Knowledgebase - auto response, Mail - parsing , mysql or mssql, user can rate tickets which where published in the knowledgebase for professional use user groups, admin - groups, ticketstatus - support iv'e read message
    Downloads: 0 This Week
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  • 24

    ASPForums

    Message forum for ASP.Net

    ASPForums is an ASP.Net application that runs on an IIS web server allowing users to post newsgroup-like messages via a web page. Posts are saved to an XML file.
    Downloads: 0 This Week
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  • 25
    AktivHelp Support Desk System is a web-based helpdesk application that allows for the exchange of information between users and their service provider (for example an IT helpdesk and their end-users).
    Downloads: 0 This Week
    Last Update:
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