Free Slack alternatives

While Slack is nice, the free version expires every 90 days. This is fine if it is just me. Currently I am collaborating on a personal GitHub project. I don’t want to keep asking my fellow project collaborators to keep reinstalling then join once again via invite. Does anyone have have any suggestions or experience for a free Slack alternative where we don’t have to reinstall and rejoin? What are you using? Any feedback or suggestions for team project management tools like Slack or beyond the topic is gratefully welcomed.

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As far as I know, Google Chat offers similar features to Slack and is free. The link with google docs is helpful if it comes in handy to be able to share notes within the system itself. I haven’t used it but I’ve heard good things.

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There are few alternatives that offer team collaboration feature like, Discord, Microsoft Teams, Matrix.

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To echo what raman004 said, I’d go with Discord. Their free tier (for both accounts and servers) will provide basically all the bells and whistles you are used to with Slack. I’ve noticed lots of open source software projects organize their communities on Discord, and I believe it’ll work for your use case as well.

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