Alternatives to IBM Sametime for all platforms with any license





Web / Online

Other Platforms

  • Winpopup LAN Messenger icon

    Winpopup LAN Messenger

    Winpopup LAN Messenger is a cost-effective Office, Corporate, Enterprise Instant Messaging solution.

    Free Personal Windows

  • IP Messenger icon

    IP Messenger

    Very simple, lightweight, and compact size IP based messenger which used by almost all Japanese companies and its affiliates. IP...

    Free Windows Android

  • Network Assistant icon

    Network Assistant

    Network Assistant is a multiple-mode user-friendly network communication utility, including real-time chat, shared whiteboard, message...

    Commercial Windows

  • Squiggle icon


    Squiggle is a free server-less peer to peer LAN messenger. Just download and run it and you're ready to talk to everyone on your...

    Open Source Windows

  • Simple Chat icon

    Simple Chat Discontinued

    Simple Chat is a simple, opensource and powerful cross-platform client-server chat for local networks and the Internet. Features ...

    Open Source Mac Windows Linux

  • qchat Discontinued

    QChat is a simple crossplatform LAN chat. It is written using Qt4 so you can compile it on any platform supported by Qt.

    Open Source Mac Windows Linux

  • BORGChat icon


    BORGChat is a LAN messaging software program. It has achieved a relative state of popularity and it is considered to be a complete LAN...

    Free Windows

  • Output Messenger icon

    Output Messenger

    Private and Secure Instant Messenger for Office designed specifically for keeping remote employees and multiple offices in sync. ...

    Commercial Mac Windows Linux Android iPhone Self-Hosted

  • Bopup IM Suite icon

    Bopup IM Suite

    Bopup IM suite organizes, manages and controls all of your business instant messaging system. This secure messaging suite is designed...

    Commercial Windows

  • jMessenger

    An open-source java based chat and file-transfer application

    Free Mac Windows Linux

  • BigAnt Office LAN Messenger icon

    BigAnt Office LAN Messenger

    BigAnt Office LAN Messenger offers rich features for secure and stable business communication. Including instant messaging, group...

    Commercial Windows

  • Vypress Chat icon

    Vypress Chat

    Vypress Chat is a user-friendly application for real-time chatting in small office or home office (SOHO) local networks. This unique...

    Commercial Windows Linux

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  • Softros LAN messenger icon

    Softros LAN messenger

    Local instant messaging application for an office chat, messages broadcast and files transfer.

    Commercial Mac Windows Android Android Tablet

  • Smarsh Instant Messenger icon

    Smarsh Instant Messenger

    smarshIM Mobile is a free application download that requires a paid account on the smarshIM service to operate. smarshIM is a...

    Commercial iPhone

  • Lan Messenger

    LAN Messenger is a decentralized UDP IM-style chat client which supports usernames, guaranteed-delivery IMs, broadcast chat...

    Open Source Mac Windows Linux

  • IntraMessenger icon


    Create your own Instant Messenger communities! Uniquely designed and fully centralized under your (admin) control. Server (open source...

    Open Source Windows Linux

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