Salesforce

Slack

Free workspaces hide every message older than 90 days. Your own history, held for ransom.

• Paywalled basicsCore features held hostage behind a paid tier.
• Lock-inProprietary formats or cloud storage that make leaving painful.

The exits

1. →

   Zulip

   Threaded team chat that keeps async discussion sane. Fully open source.

   Status

   Stable Mature and ready for daily work.

   License

   Apache-2.0

   Source

   github/zulip/zulip ↗

   Get Zulip ↗View source ↗
2. →

   Element

   Encrypted, federated chat on the open Matrix protocol.

   Status

   Stable Mature and ready for daily work.

   License

   AGPL-3.0

   Source

   github/element-hq/element-web ↗

   Get Element ↗View source ↗

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