Slack
Freemium
Slack is a cloud-based team collaboration tool.
Mattermost
Open Source
Mattermost is an open source, private cloud Slack-alternative, Workplace messaging for web, PCs and phones. MIT-licensed.
eXo Platform
Commercial
eXo Platform is an open source, standard-based, Enterprise Social Collaboration Platform.
TribeScale
Free
TribeScale is an All-in-One platform to coordinate your team around what really matters - communication, goals, decisions, tasks and results.
Grape
Commercial
Grape is an REST-like API framework for Ruby. It's designed to run on Rack or complement existing web application frameworks such as Rails and Sinatra by prov…
Campfire
Commercial
Campfire helps you easily collaborate online in real-time.
Gitter
Freemium
Gitter is an open source instant messaging and chat room system for developers and users of GitHub repositories.
Glip
Freemium
Glip is fully searchable, real-time group chat; video chat, task management, file sharing app.
HipChat
Freemium
HipChat is a web service for internal private online chat and instant messaging.
qiscus
Free Personal
Qiscus provide everything you need to power up your app with chats.
Flock
Freemium
Flock is a communication app for teams. Packed with tons of productivity features, Flock drives efficiency and boosts speed of execution.
Fleep
Freemium
Fleep enables communication within and across organizations, be it your team chats, project communication or 1:1 conversations.
Dialog Messenger
Free Personal
Dialog Messenger is a handy and feature-rich enterprise multi-device messenger available for server or cloud.
Compare Hack Chat with alternatives
Compare Mattermost and Hack Chat and decide which is most suitable for you.
Compare eXo Platform and Hack Chat and decide which is most suitable for you.
Compare TribeScale and Hack Chat and decide which is most suitable for you.
Compare Dialog Messenger and Hack Chat and decide which is most suitable for you.