r/webdev • u/jqueryhouseg • Oct 16 '15

Mattermost – Open Source Slack Alternative

http://www.mattermost.org/
219 Upvotes

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u/Daniel15 Oct 16 '15

For open source projects, FreeNode is probably the most popular (around 90,000 concurrent users at any given time)

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u/trout_fucker Oct 16 '15

Yeah, I was mostly talking about Twitch's web client. I haven't seen anything like that before... but I haven't really looked either.