Prototyping for everyone
Slack brings all your communication together in one place
Supercharge team collaboration with group chat and IM
Messaging for people who make software. Integrated with your team, projects and your code.
Chat-based workspace in Office 365
Open-source, self-hosted, Slack alternative
Open source slack alternative
Powerful open source team chat
Flowdock is your team's chat with a shared inbox. Teams using Flowdock react in seconds and never forget anything.
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.
Team collaboration with real time chat.
Slack without the annoying distractions
A community platform for the future.
Open source self-hosted chat app for small teams
Real-time business chat & texting for teams
A modern and Open Source Web client for XMPP
Like Slack except P2P, offline friendly, and open source
A small alternative to Slack