Chanty
by Chanty Inc.
Free
Simple team messaging with a built-in task manager for small teams.
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Best Team Chat
Real-time messaging platforms for teams with channels and threads.
Discord
by Discord Inc.
Free
Voice, video, and text community platform popular with dev and tech teams.
Flock
by Flock FZ-LLC
Free
Team messenger with built-in productivity tools and polls for SMBs.
Lark
by ByteDance
Free
All-in-one collaboration suite with chat, docs, calendar, and video built in.
Mattermost
by Mattermost Inc.
Free
Self-hosted, open-source team messaging built for high-security environments.
Microsoft Teams
by Microsoft
Free
Microsoft's unified hub for chat, meetings, and Office 365 file collaboration.
Pumble
by COING d.o.o.
Free
Free team messaging app with unlimited message history for budget-minded teams.
Rocket.Chat
by Rocket.Chat Technologies
Free
Open-source team messaging you can self-host for full data control.