Team chat & messaging.

Slack alternatives where the message history is yours and the price doesn't scale with headcount. Federated options included.

Shelf average

3.6

4 of max 7 listed · Ranked by Arete · No paid placement

ZulipProvisional

Threaded team chat that respects deep work

Bootstrapped OSS company · Free (CE) / paid cloud

Autonomy5

Return4

Efficiency3

Transparency5

4.3
/5

Federated, E2E-encrypted messaging

Foundation + company · Free (CE) / paid hosting

Autonomy5

Return3

Efficiency2

Transparency5

3.8
/5

MattermostProvisional

Slack alternative you control

VC-backed OSS · Free (CE) / enterprise

Autonomy4

Return4

Efficiency3

Transparency3

3.5
/5

Feature-rich team chat

VC-backed OSS · Free (CE) / enterprise

Autonomy4

Return3

Efficiency2

Transparency3

3.0
/5

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