Recommendations for building or using a self-hosted instant messaging solution?

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Hey everyone,

I’m looking into options for a self-hosted instant messaging solution for internal team communication. Ideally, I need something with good flexibility, strong security, and the ability to scale over time.

I’m open to both building from scratch (using open-source libraries or SDKs) and using ready-made solutions that allow for customization and private hosting.

While searching, I came across a few platforms like Zoom, MirrorFly, Rocket.Chat, Apphitect, and Troop Messenger. I’m curious — which of these (or others) would you recommend?

A few things I’m trying to figure out:

  • What are some reliable and popular options for self-hosted chat apps?

  • What features should I prioritize when evaluating these solutions (e.g. message storage, end-to-end encryption, scalability)?

  • Any recommendations based on real-world experience?

  • How difficult is it to integrate these solutions into an existing product or internal workflow?

I’d really appreciate any insights or suggestions — especially from those who’ve worked on similar implementations. Thanks in advance!

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I’m facing something similar, and I’ve really come to like discourse (which this on.acm.org site is using). It may not be as “instant” or “chatty” as you’re looking for though.

1 Like
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Hi Kathrin, you might like to check out Matrix or XMPP. Best, JS