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  1. A Qt graphical user interface for Tox.
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  2. Chat, browse and transact securely in an open source community committed to bringing the power of Ethereum and a more distributed internet to your pocket.
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  3. CyTube is a web application providing media synchronization, chat, and more for an arbitrary number of channels. The serverside is written in JavaScript and runs on Node.JS.
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  4. Having trouble managing a busy team or staying on top of everything happening at work?
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  5. Kik is way more than just messaging. It’s the easiest way to connect with your friends, stay in the loop, and explore – all through chat. No phone numbers, just pick a username.
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  6. Corteza Messaging is a secure, high performance, open source Slack alternative that allows your teams to collaborate more efficiently, as well as communicate safely with other organisations or customers.
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  7. Glip is instant messaging for teams and businesses to communicate and get work done at the same time. In Glip you work where your conversations are, so you always know what your team is doing and what needs to get done next.
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  8. Flock is a faster, more organized way for teams to communicate. Flock provides one-on-one chat and public and private channels. It offers multi-party video and audio calling and screen sharing.
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  9. Plus Messenger is an messaging app that uses Telegram 's API. Plus Messenger has all of Telegram's features plus themes. Plus Messenger is free for android devices.
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    • FreemiumProprietary
    • Mac
    • Windows
    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    Threads is a platform designed to make work more inclusive by empowering teams to discuss and make decisions at scale. Create a space This is your team's virtual meeting room. Once created, invite others and start your discussion - no scheduling required.
  10. Hitask is the project planner for getting tasks done. Assign, prioritize, and remind tasks to your team with lists. Check progress of each project on the go and see what your organization is working at.
  11. The free and open-source Crust Messaging is a secure, high performance,Slack alternative that allows your teams to collaborate more efficiently, as well as communicate safely with other organisations or customers.
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  12. Taskulu is an online management and collaboration platform that takes the pain out of managing large teams and projects by allowing you to manage every resource under one roof and preventing resource fragmentation!
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  13. Philosophy Fosscord aims to be a full one-on-one clone of Discord, adding more features that can be used as a replacement for the official client and still connect to discord.com and host private Fosscord server instances.
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  14. GoToMeeting is an online meeting, desktop sharing, and video conferencing software package that enables the user to meet with other computer users, customers, clients or colleagues via the Internet in real time.