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

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  • 1
    RetroShare

    RetroShare

    [WARNING] Project has moved to http://github.com/Retroshare/Retroshare

    [IMPORTANT] Retroshare is now distributed on Github. Please go to http://retroshare.net to find the latest releases and sources. RetroShare is a cross-platform, secured and decentralized communication system. It lets you to securely chat, share photos, videos, and more with family and friends, using OpenPGP to authenticate peers and OpenSSL to encrypt all communication.
    Downloads: 4 This Week
    Last Update:
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  • 2
    GoldBug - Encrypted Communications

    GoldBug - Encrypted Communications

    Chat Messenger. E-Mail-Client. Websearch. Filetransfer.

    GoldBug is a decentralized & secure communication suite that offers an integrated e-mail client, an instant messenger & a file transfer. Also included is an URL-RSS-DB & a p2p web search. Current vers. w/ McEliece Algorithm. GoldBug has been 2013 - 2023 ten years just another Graphical User Interface of the Spot-On Encryption Suite. Main GUI features: Minimal & colorful Interface with Tabs in the East. Microsoft & Qt MinGW deprecated Win32 & for Compiling: ● https://sourceforge.net/p/goldbug/wiki/compiling As Spot-On implemented the minimal GB-concept & Nuvola Icons, GoldBug has now been fully integrated into Spot-On Win64: Just choose Tabs at East & Mini-View in Options - w/ Nuvola Icons of course! Voilá! & Many Thanks, Pro-Files can be found archived at ● current source: https://github.com/textbrowser/spot-on ● EN Manual: https://www.amazon.com/dp/3749435065 ● DE: https://compendio.github.io/goldbug-manual-de/ ● Study: https://www.amazon.com/asin/dp/3750408971
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    Downloads: 19 This Week
    Last Update:
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  • 3
    WASTE is a mesh-based workgroup tool that allows for encrypted, private communication between distant parties on the internet, independant of local network organization.
    Downloads: 5 This Week
    Last Update:
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  • 4
    Luadch

    Luadch

    We moved to GitHub! -> http://luadch.github.io/

    We moved to GitHub! New Website: http://luadch.github.io/ There you will find all the necessary informations.
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    Downloads: 2 This Week
    Last Update:
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  • 5
    Smoke Crypto Chat Messenger for Android

    Smoke Crypto Chat Messenger for Android

    Smoke: Android Crypto Chat Messenger

    Smoke is an encrypting chat messenger for Android written in Java. Please read the Web site for more information: https://textbrowser.github.io/smoke/ (original, current) https://www.amazon.com/dp/3752691999/ https://smokeappope.sourceforge.io/ (old, third party archive) Smoke App OPE - Open Personal Encryption Download Android APK Installer: https://sourceforge.net/projects/smokeappope/files/ Smoke Source: https://github.com/textbrowser/smoke SmokeStack Source: https://github.com/textbrowser/smokestack (Android) https://github.com/textbrowser/spot-on (Desktop) Smoke appears to be one of the first projects with an open source mobile encrypting chat server., an decentralized and easily-configurable chat server. Smoke is known as the first mobile McEliece Messenger: https://tarnkappe.info/artikel/english/mceliece-messaging-smoke-crypto-chat-the-first-mobile-mceliece-messenger-published-as-a-stable-prototype-worldwide-279847.html
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    Downloads: 1 This Week
    Last Update:
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  • 6
    e3 = jabber + java + plugins + svg ||| web start link: http://complat.sourceforge.net/jnlp
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    Downloads: 0 This Week
    Last Update:
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  • 7
    With this application you can encrypt texts or files and chat with friends. You can download a early Android version of the chat client from here: https://drive.google.com/uc?export=download&id=0BwePHaWdtoMweWRyMExqbHZyUEk Hint: I started this project because i have fun to write java apps. This app is not professional. I don´t recommend using this to encrypt very important data (for example of your company ...). Keep this in mind. Happy testing! ;) Please check MD5 after Download. You can find this on the official site of this project (german). You can find a link to this very simple site below. How to start: -------- Windows: double-click on CryptolinN.exe -------- Linux: sh CryptolinN.sh OR FIRST chmod +x CryptolinN.sh THAN ./CryptolinN.sh -------- Console: java -jar CryptolinN.exe --help N = version number
    Downloads: 0 This Week
    Last Update:
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  • 8
    EnCrypted fiLe Sharing In jaVa
    Downloads: 0 This Week
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  • 9
    Gloster is a secure and decentralized p2p program for small communities working under Linux and Windows
    Downloads: 0 This Week
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  • 10
    The Leeter is an easy-to-use and convinient program to easily write hardly understandable text. While this is mainly not the intention of normal chatters it may be a nice joke to try out on friends. Provides 5 different options to scramble up your text.
    Downloads: 0 This Week
    Last Update:
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  • 11
    The Mobility Project wants to make communication simplier and more secure. We use Free (as in Freedom) Software to create tools that are powerful, but also intuitive.
    Downloads: 0 This Week
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  • 12
    MsTasty is a free, PHP-based and modular IRC bot
    Downloads: 0 This Week
    Last Update:
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  • 13
    Seagull is a peer to peer network client software that allows user to communicate and share files over secure connections and secure peer to peer identification and handshaking.
    Downloads: 0 This Week
    Last Update:
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