Supercharge team collaboration with group chat and IM
Bring all your communication together in one place
Chat-based workspace in Office 365
Messaging for people who make software. Integrated with your team, projects and your code.
Open-source, self-hosted, Slack alternative
Open source slack alternative
Powerful open source team chat
A messaging platform built for teams
A cloud-based instant messaging and voice over IP service
Slack for the whole world, except end-to-end encrypted across all your devices
A faster way for your team to communicate
Group messaging & video meetings for teams, from Atlassian
Your own business messenger.
Open source team messaging application with apps for Android, iOS, and Web
Team collaboration with real time chat.
Slack without the annoying distractions
A community platform for the future.
Real-time business chat & texting for teams
Open source self-hosted chat app for small teams
Like Slack except P2P, offline friendly, and open source
A modern and Open Source Web client for XMPP
A small alternative to Slack