• Skype icon


    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 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

  • Mattermost icon


    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)

  • Glip icon


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

    Open Source Mac Windows Linux Android iPhone Self-Hosted

  • Let's Chat icon

    Let's Chat

    Self-hosted chat for small teams. Features and Stuff BYOS (bring your own server) Persistent messages Multiple...

    Open Source Self-Hosted

  • eXo Platform icon

    eXo Platform

    eXo Platform is a Social Intranet designed for enterprises. It helps people work together in a collaborative workplace.

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

  • Campfire icon


    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...

    Freemium Web / Cloud iPhone

  • Gitter icon


    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

  • kune icon


    kune is a social network where you can communicate, collaborate and share between equals, using different web tools: documents...

    Open Source Web / Cloud

  • 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

  • Know any more alternatives to Circuit?

    Suggest an application to this list
  • Kandan icon


    Open Source private chat server. Your own private Chat server in minutes, plus additional features. No credit card required. A fast...

    Open Source Web / Cloud Self-Hosted Ruby on Rails

  • qiscus icon


    qiscus organizes your work discussions into rooms and topics to help your team become more efficient and productive.

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

  • Sameroom icon


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

    Commercial Web / Cloud

  • Ryver icon


    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

  • Fleep icon


    Fleep is a messenger for your teams and projects. It enables communication within and across organizations - be it your team chats...

    Freemium Mac Windows Web / Cloud Android iPhone

  • Flock icon


    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

  • Share this list of alternatives?

  • Cisco Jabber icon

    Cisco Jabber

    Empower, Engage, Innovate Learn how Cisco will deliver capabilities that offer simple user experiences across devices and...

    Free Windows iPhone iPad

  • 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

  • Flowdock icon


    Flowdock is a beautiful group chat. You can upload files, paste blocks of text, use #hashtags to make notes or create lists and...

    Commercial Web / Cloud

  • Wiggio icon


    Wiggio is a completely free, online toolkit that makes it easy to work in groups. With Wiggio you can: - keep shared calendar (with...

    Free Web / Cloud

  • Bitrix24 icon


    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

  • 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

  • Slenke icon


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

    Freemium Mac Windows Web / Cloud

  • Filevine icon


    Built to manage all communication in the office, and to keep cases moving forward, Filevine is a step forward in project management...

    Commercial Web / Cloud

  • Grape icon


    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

  • Crux icon


    Headquartered in Santa Monica, Crux was built with groups in mind in order to communicate in a more organized, easy, and efficient...

    Free Android iPhone iPad

  • SVYFT icon


    SVYFT is Team Collaboration Built Around Group Chat. It's free to create unlimited public and private chat rooms. Unique to...

    Freemium Web / Cloud

  • Trackmemo icon


    A real time news feed of your team that gets you to the big picture without status updates. In couple of easy clicks you can...

    Freemium Web / Cloud

  • JANDI icon


    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


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

    Freemium Windows Web / Cloud Android iPhone Android Tablet iPad

  • GlobalMeet icon


    GlobalMeet is designed to make online meetings and presentations easy. Use it to connect with large groups anywhere in the world. ...

    Commercial Mac Windows Android iPhone Blackberry iPad

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