from Hacker News

Ask HN: Any open source alternative to Slack?

by Kalpeshbhalekar on 7/28/23, 11:55 PM with 11 comments

• by plastic_bag on 7/29/23, 9:32 AM

  We used a self-hosted version of RocketChat at my previous employer's.

  https://www.rocket.chat/

• by mdwalters on 7/29/23, 1:12 AM

  i think matrix is a good alternative, after all, you can self-host it

• by logiczilla on 7/29/23, 2:46 AM

  Mattermost is an opensource Slack clone.

• by ezedv on 7/31/23, 2:54 PM

  You might want to check out Mattermost! It's a great open-source alternative to Slack, offering similar features and functionalities.

• by mplanchard on 7/29/23, 2:47 AM

  zulip is another option

• by Am4TIfIsER0ppos on 7/29/23, 11:40 AM

  IRC