Alternatives to Output Messenger for all platforms with any license

  • Skype icon

    Skype

    Skype is the most popular free voice-over IP and instant messaging service globally. It allows users to text, video and voice call...

    Freemium Mac Windows Linux Web / Cloud Android iPhone ... Blackberry Chrome OS Windows RT Android Tablet BSD Windows Phone iPad Apple Watch Android Wear

  • Slack icon

    Slack

    Slack brings all your communication together in one place. It's real-time messaging, archiving and search for modern teams.

    Freemium Mac Windows Linux Web / Cloud Android iPhone ... Apple Watch Electron / Atom Shell

  • Trillian icon

    Trillian

    Trillian is an instant messaging app that works on phones, tablets, and desktops while keeping your chats neatly synchronized between...

    Freemium Mac Windows Linux Web / Cloud Android iPhone ... Blackberry iPad

  • Mattermost icon

    Mattermost

    Mattermost is an open source, self-hosted Slack -alternative As an alternative to proprietary...

    Open Source Mac Windows Linux Android iPhone Android Tablet ... iPad Self-Hosted JavaScript Go (Programming Language)

  • Empathy icon

    Empathy

    Empathy is a messaging program which supports text, voice, video chat, and file transfers over many different protocols. You can tell...

    Open Source Linux BSD

  • Glip icon

    Glip

    Glip is instant messaging for teams and businesses to communicate and get work done at the same time. In Glip you work where your...

    Freemium Mac Windows Web / Cloud Android iPhone Android Tablet ... iPad

  • HipChat icon

    HipChat

    HipChat is an instant messaging service designed for companies and teams. It has persistent chat rooms, one-to-one chat, searchable...

    Freemium Mac Windows Linux Web / Cloud Android iPhone ... Android Tablet iPad Self-Hosted Apple Watch

  • Rocket.Chat icon

    Rocket.Chat

    Rocket.Chat is a Web Chat Server, developed in JavaScript, using the Meteor fullstack framework.

    Open Source Mac Windows Linux Android iPhone Self-Hosted

  • Gitter icon

    Gitter

    Where developers come to talk. Gitter.im is a GitHub based chat and collaboration tool for developers and users.

    Freemium Mac Windows Linux Web / Cloud Android iPhone

  • Campfire icon

    Campfire

    Campfire is a simple web-based real-time group chat tool for business. It makes real-time communication with 2-60 people as simple as...

    Commercial Web / Cloud iPhone

  • LAN Messenger icon

    LAN Messenger

    LAN Messenger is a p2p chat application for intranet communication and does not require a server. A variety of handy features are...

    Open Source Mac Windows Linux

  • Hack Chat icon

    Hack Chat

    hack.chat is a minimal, distraction-free chat application. Channels are created and joined by going to...

    Open Source Web / Cloud Android Self-Hosted

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  • BeeBEEP icon

    BeeBEEP

    BeeBEEP is a secure network chat. You can talk and send files with all your friends inside a local area network such of an office...

    Open Source Windows Linux Wine

  • Sameroom icon

    Sameroom

    Sameroom helps connect chatrooms (even when they’re running on completely different services).

    Commercial Web / Cloud

  • Actor Messenger icon

    Actor Messenger

    Modile-first open source self-hosted messaging platform that allows to easily create your own messaging app.

    Open Source Mac Windows Linux Web / Cloud Android iPhone ... Android Tablet iPad Self-Hosted

  • Ryver icon

    Ryver

    Ryver provides all of your team communications in one place: chats, posts, and files. Invite as many team members and guests as you...

    Free Mac Windows Linux Web / Cloud Android iPhone ... Android Tablet iPad Chrome

  • Flock icon

    Flock

    Flock is a team communication and collaboration tool that enables employees in teams to ‘Get work done, faster’

    Freemium Mac Windows Web / Cloud Android iPhone Chrome OS ... Android Tablet Windows Phone iPad

  • Slenke icon

    Slenke

    Slenke is an internal social network for your company to securely communicate, share files, manage projects, organize tasks, track...

    Freemium Mac Windows Web / Cloud

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  • Exselo Desktop icon

    Exselo Desktop

    Outlook and desktop search to help you search and find information from your files, emails and documents on your computer. Now also...

    Free Mac Windows

  • Grape icon

    Grape

    Grape is a business communication solution with a deep service integration, that makes all the distributed data from different...

    Commercial Mac Windows Web / Cloud Android iPhone Android Tablet ... iPad

  • Zoho Chat icon

    Zoho Chat

    Zoho Chat combines content and communications into a single view to give you a comprehensive picture of your team's work. Zoho...

    Free Web / Cloud Android iPhone Android Wear

  • AVAILO icon

    AVAILO Discontinued

    AVAILO is a business communication app for teams. One place for internal and external communications, open groups for your team...

    Free Android iPhone Android Tablet iPad

  • Winpopup LAN Messenger icon

    Winpopup LAN Messenger

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

    Free Personal Windows

  • Bopup Messenger icon

    Bopup Messenger

    This app allows to exchange secure messages and communicate instantly with users connected to the same communication server software...

    Commercial Windows Android Android Tablet

  • IBM Sametime icon

    IBM Sametime

    IBM Sametime instant messaging products integrate real-time social communications into your business environment, providing a unified...

    Commercial Mac Windows Linux Android iPhone Android Tablet ... iPad

  • Bitrix24 icon

    Bitrix24

    1,000,000 companies already use Bitrix24 for project collaboration and customer management. Tasks, chats, contacts and VoIP calls -...

    Freemium Mac Windows Linux Web / Cloud Android iPhone ... Android Tablet iPad Self-Hosted

  • Tlk2me icon

    Tlk2me

    Tlk2me is simple real-time messaging platform which is designed exclusively for groups. It is a web-based group chat tool that lets...

    Free Web / Cloud

  • JANDI icon

    JANDI

    JANDI is a group-oriented enterprise messaging platform with an integrated suite of collaboration tools for workplace.

    Freemium Mac Windows Web / Cloud Android iPhone

  • Protonet SOUL icon

    Protonet SOUL

    Extendable cloud-based team communication and business collaboration app that you can easily host on your own Private Cloud Server if...

    Commercial Web / Cloud Android iPhone

  • uShare.to icon

    uShare.to

    Team Communication for your 'extended' team across company boundaries - clients, partners, vendors etc.

    Freemium Windows Web / Cloud Android iPhone Android Tablet iPad

  • Squiggle icon

    Squiggle

    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

  • TribeScale icon

    TribeScale

    TribeScale is a startup that aims to enhance teamwork in companies through the improvement of communication, coordination, and the...

    Free Mac Windows Web / Cloud Android iPhone iPad ... Self-Hosted

  • Secure copy

    Secure copy or SCP is a means of securely transferring computer files between a local host and a remote host or between two remote...

    Open Source Mac Linux

  • chatstep icon

    chatstep

    Secure / Private / Beautiful Online Group Chat Security All nicknames, messages, and images are encrypted on your computer...

    Free Web / Cloud

  • 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

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