Zulip
open-source team chat
88/100Excellent fit
on a balanced view of all values
Open: Strong. Zulip describes its self-hosted edition as 100% open-source software with no open-core catch. source↗ 2026
One source: zulip.comzulip.com
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An honest, sourced verdict from Conscious Consuming. Choose by your values, not by who pays.