Slack
FreemiumFree tier with limits; paid plans
Collaboration
Channel-based messaging for teams.
Slack organises team communication into channels, with threads, integrations, and search. A staple of workplace collaboration.
Screenshots
Alternatives to Slack
Apps the community suggests as alternatives, ranked by votes.
- MattermostFree · Open Source
Open-source, self-hostable team chat.
- DiscordFreemium
Voice, video, and text chat for communities.
- ElementFree · Open Source
Secure chat on the open Matrix network.
- Microsoft TeamsFreemium
Chat and meetings in the Microsoft 365 suite.
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