Top 4 Open-Source Alternatives to Project Sonoma

Product categories

Chat Cloud Storage Communication Encrypted Cloud Storage Group Chat & Notifications Group Messaging Instant Messaging Messaging Office Suites Project Management Task Management Team Collaboration

Summary

The top open-source alternatives to Project Sonoma are Mattermost, Element.io, and Twake. One of the criteria for ordering this list is the number of mentions that products have on reliable external sources. You can suggest additional sources through the form here.

Mattermost Landing Page
1

Mattermost

Mattermost is an open source alternative to Slack.
Pricing:
- Open Source
#Team Collaboration #Work Collaboration #Web And Video Conferencing 59 social mentions
Element.io Landing Page
2

Element.io

Secure messaging app with strong end-to-end encryption, advanced group chat privacy settings, secure video calls for teams, encrypted communication using Matrix open network. Riot.im is now Element.
Pricing:
- Open Source
- Free
#Group Chat & Notifications #Communication #Chat 1 social mentions
Twake Landing Page
3

Twake

Be more productive with Twake : the collaborative work platform to organize and manage all your projects on a single platform.
Pricing:
- Open Source
- Freemium
- Free Trial
#Project Management #Office Suites #Task Management 16 social mentions
Wire Landing Page
4

Wire

Private & Secure Messenger
Pricing:
- Open Source
#Communication #Group Chat & Notifications #Messaging 14 social mentions