Slack Alternatives

What users switch to when Slack doesn't work out — and why they make the change.

1
Microsoft Teams
Mentioned 9x by users
55/100

Companies switch because Teams comes with many Microsoft 365 plans they already pay for. Gain: no extra per-user cost, native Office/SharePoint integration, built-in meetings. Trade-off: heavier, clunkier UX and fewer third-party integrations.

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2
Discord
Mentioned 7x by users
52/100

Startups and tech teams switch for better free tier and voice features. Gain: unlimited message history free, superior voice channels, screen sharing. Trade-off: less professional appearance, no enterprise compliance.

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3
Google Chat
Mentioned 6x by users

Google Workspace users switch because Chat is included in their subscription, integrates with Gmail/Calendar/Drive, and provides adequate functionality without extra cost.

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4
Mattermost
Mentioned 5x by users

Organizations switch for self-hosted option, open source codebase, and data sovereignty. Popular with security-conscious companies and those needing on-premise deployment.

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5
Zulip
Mentioned 4x by users

Teams prioritizing async work switch for topic-based threading. Gain: conversations organized by topic not time, open source, self-hostable. Trade-off: smaller ecosystem, less polished UI.

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6
Rocket.Chat
Mentioned 3x by users

Teams that need self-hosting or strict data control switch to this open-source chat platform. Gain: on-premise deployment and full data ownership. Trade-off: you run and maintain the server, and the app ecosystem is far smaller.

View Rocket.Chat

Compare side by side

See how Slack stacks up against the top alternative

Compare Slack vs Microsoft Teams