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  1. Jeti is a social media platform that connects you with people who are nearby, have shared interests or topics, and friends and family members. By simply downloading the app and providing your location, you can start posting to your local feed.
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  2. Toxic is a client with an ncurses interface, written entirely in C. It has support for all basic features, as well as 1-on-1 audio/video chats, and is capable of working on bare-bones systems that lack graphical interfaces.


  3. Very simple, lightweight, and compact size IP based messenger which used by almost all Japanese companies and its affiliates. IP Messenger is one of the awesome tool which allows you to chat on LAN or network with other people if they are using the same software.
  4. Voptop offers secure and anonymous telephony, instant messaging, file transfer and screen sharing/recording. The Voptop-network is a “peer to peer”-network, which is built by using all registered voptop clients.
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    • FreeOpen Source
    • Linux
    • Linux Mint
    • Kubuntu
    • Ubuntu
    ScudCloud is a non official open-source Ubuntu desktop client for Slack.

    Discontinued

    The project's repository has been archived. https://github.com/raelgc/scudcloud

  5. Messaging SMS has full functions such as messaging applications of the system, in addition, the application also offers many additional functions such as sending messages with emoticon, MMS ...
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  6. Ricin aims to be a secure, lightweight, hackable and fully-customizable chat client using the awesome and open-source ToxCore library. We know that there are several .
  7. Centerim is an command line interface chat client for the common protocols like icq, msn, aim, jabber, ...
  8. BNESIM is the FIRST global mobile operator to make your android phone DUAL SIM and to give you: - Unlimited phone numbers from any country on your Android phone or tablet. - Unlimited FREE incoming calls wherever you are, at home or abroad. .
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  9. Zangi Safe Messenger is a secure messaging app working based on its revolutionary technology which ensures users’ private communication. The app does not store users’ communication history, which means no information can ever be accessible to any third party.
  10. TrueConf Server is used by 5000 companies around the world connecting thousands of workplaces and conference rooms. The server is specially designed to work in your corporate network. Deploying TrueConf Server takes only 15 minutes!
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    • FreeOpen Source
    • Mac
    • Windows
    • Linux
    • Online
    • Self-Hosted
    Subway is a web-based IRC client with a multi-user backend and a JavaScript-heavy UI. Frontend/backend communication is done with websockets (or best available fallback where not available).

    Discontinued

    Subway is in hiatus, i.e. it's not currently functional and not under active development, but the plan is to finish this project some point in the future. Meanwhile currently the maintainer strongly suggests taking a look at Shout .

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  11. Winpopup LAN Messenger is a cost-effective Office, Corporate, Enterprise Instant Messaging solution.
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  12. Thirdlane Connect aims to increase team productivity by combining chat, voice and video calls, video conferencing, screen sharing, CRM and application integration into one simple to use application.
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  13. Emoty is a messaging application with emphasis on simplicity, freedom and safety. It's a client for RetroShare network, hence use the same decentralized, Friend-to-Friend network structure with end-to-end encryprtion.

    Discontinued

    The project seems no longer developed. Last version, 0.3, released in January 2018, can be still downloaded from GitHub.

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