Channel-based messaging and collaboration for work teams
Slack is a workplace messaging app that organizes conversations into channels by team, project or topic, with threads, direct messages and huddles for quick audio or video calls. A large app directory and an open API connect it to most business tools, and Slack Connect lets companies share channels with clients and partners. AI summaries and search are available on paid plans.
- features
- 6
- alternatives
- 9
- platforms
- 6
- Updated
- Oct 12, 2026
Features
Our take
Pros
- Huge app directory connects to almost any business tool
- Slack Connect shares channels with clients and partners
- Huddles make quick audio and video calls effortless
Cons
- Free plan hides older message history
- Paid plans get costly for large teams
- Constant notifications can hurt focus
Editorial assessment by the Alternatives.tools team, based on what the product is known for. Not a user review.
Best Slack alternatives
See all 9 alternatives
Microsoft TeamsFreemiumChat, meetings and calls inside the Microsoft 365 ecosystem
4.8(3.4M) · App Store
DiscordFreemiumVoice, video and text chat for communities and groups
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Google ChatFreemiumTeam messaging and spaces built into Google Workspace
4.6(306.5K) · App Store
MattermostFreemiumOpen sourceOpen-source, self-hostable team messaging for secure operations
4.8(5.6K) · App Store
ZulipFreemiumOpen sourceOpen-source team chat organized by conversation topics
26Kstars
ChantyFreemiumSimple team chat with a built-in task board
4.5(135) · App Store
User reviews
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