Cost / License
- Free
- Proprietary
Platforms
- Online
Slack is described as 'Facilitates teams' real-time collaboration with versatile chat interface and advanced search in configurable channels across multiple platforms' and is a leading Group Chat app in the social & communications category. There are more than 100 alternatives to Slack for a variety of platforms, including Web-based, Android, iPhone, Windows and Mac apps. The best Slack alternative is Element. It's not free, so if you're looking for a free alternative, you could try Element or Zulip. Other great apps like Slack are Rocket.Chat, Discord, Matrix and Wire.
Hub connects, engages and improves your team’s productivity. No need to go back and forth over emails, text or phone calls. Use built-in templates to get the right message out to relevant team members. Track the responses easily, reduce follow-ups and get more done faster!




9mCollab is an organization management tool that enables logically structured, conclusion-driven collaboration. It’s built for organizations and team members to enjoy conclusive discussions and faster decision making with less information noise and distraction.








Team chat, videoconferencing, screen sharing, file sharing, apps builder, process automation, integrations - with Tekos Collaboration & Automation




MyGroupSpace is a shared online workspace for a remote worker and anyone they work with to organise tasks, events, chat messages, posts, notebooks, and files etc.

A decentralized fault-tolerant platform for corporate interaction within companies and for private communication with clients.




Clatter is a free and open source chatting platform for work and casual purposes and is the successor to TeamSpace, another chatting platform but for work only. Clatter is very early in development, so it lacks crucial features, but it has been updated regularly.


SadnessChat SadnessChat is a free, real-time chat platform built for real conversations. Whether you're hanging out with friends or building a community, SadLounge has everything you need.



Kazokus is a unified platform for community builders who are tired of juggling multiple tools. Instead of stitching together Eventbrite for events, Slack for chat, Notion for content, and PayPal for payments, Kazokus combines everything in one place.




iTribe open source fully managed community platform is designed to facilitate engagement in a secure, moderated and user-friendly environment. It hides the complexity, leaving management and admins with more time to focus on growth and engagement.

This app is the Prologue, and you and your friends create the story. Chat, voice call, video call, screenshare, and more. Always free and privacy first.