Team chat Category leader

Zulip

Open-source team chat organized around threaded topics

Visit Zulip

Zulip is open-source team chat where every message belongs to a topic inside a channel, built for asynchronous conversation. It is available as Zulip Cloud or self-hosted, with a free cloud tier limited to 10,000 messages of search history.

  • Channels
  • Threaded replies
  • Direct and group messages (not listed)
  • Searchable history
  • App integrations
  • Huddles and calls

Also includes

  • Guest access
  • File sharing
  • Status and presence
  • Scheduled messages
  • Retention policies
  • Compliance export
  • SSO and provisioning
  • Self-hosting
  • Free plan

From the vendor's own site. Not yet verified by SoftScout. A missing item may just mean we haven't confirmed it.

Team chat Category leader

Mattermost

Contact sales 51–500+ people

Self-hosted secure collaboration for regulated organizations

Key features

  • Channels
  • Searchable history
  • App integrations
  • Huddles and calls

Team chat

Pumble

Free plan· $2.49/user/month billed annually ($2.99 monthly) 1–500 people

Team chat with a free plan, from the makers of Clockify

Key features

  • Channels
  • Threaded replies
  • Direct and group messages
  • Searchable history
  • App integrations
  • Huddles and calls

Team chat Category leader

Rocket.Chat

Contact sales 51–500+ people

Secure messaging, voice and video you can run on your own servers

Key features

  • Channels
  • Threaded replies
  • Direct and group messages
  • Searchable history
  • Huddles and calls