Slack alternatives?

3 years ago by emptiestplace to c/sysadmin

Hello! I am looking for suggestions for Slack alternatives that meet the following (likely impossible) criteria:

Modern UI
Self-hosted FOSS
Actively developed, or at least stable and maintained
Comprehensive API for integrations
Non-shit strategy for determining which device to send notifications to

Regarding UI, I am hoping to find something with a more streamlined implementation of threaded conversations - this is my primary complaint with Slack.

I know there are tons of articles on Slack alternatives, but I'm hoping for a more technical perspective. Are there any Matrix-based options that are refined enough for a small team to rely on as primary method of communication?

Thank you!

fluffman86 16 points 3 years ago

Element/Matrix is pretty much what you're looking for if you need self hosted. Could also look into Jabber/XMPP or IRC but Matrix is going to be way more modern and useable.

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littlewonder 8 points 3 years ago

Mattermost

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ggnoredo 8 points 3 years ago

Zulip

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sbv 1 point 3 years ago

I found Zulip to be much more intuitive than Slack.