Alternatives to Mattermost

Alternatives, ranked

1. 1
   JM

   Jitsi Meet

   WebRTC video conferencing application that can be self-hosted and used from the browser or mobile apps.

   • Released more recently
   • Higher score
   • Runs on more platforms
   • No shared features
   Updated 48 days ago

   27 91.8 = Compare
2. 2
   ZU

   Zulip

   Organized team chat app with unique email-style threading to keep conversations on topic.

   • Higher score
   • Runs on more platforms
   • No shared features
   Updated 87 days ago

   94 81.4 = Compare
3. 3
   NS

   Nextcloud Server

   Self-hosted file sync and sharing platform with calendar, contacts and collaboration apps.

   • No shared features
   Updated 51 days ago

   120 79.8 = Compare
4. 4
   RO

   Rocket.Chat

   Communications platform that securely connects teams, customers, and partners via chat, voice and video.

   • Runs on more platforms
   • No shared features
   Updated 57 days ago

   126 79.6 = Compare
5. 5
   SY

   Synapse

   Matrix homeserver written in Python for hosting decentralized, federated chat.

   • Runs on more platforms
   • No shared features
   Updated 51 days ago

   167 76.1 = Compare
6. 6
   DI

   Discourse

   Modern open source discussion platform built for the next decade of the Internet.

   • Runs on more platforms
   • No shared features
   Updated 72 days ago

   181 74.1 = Compare
7. 7
   CA

   Cal.com

   Scheduling infrastructure for everyone, open source alternative to Calendly with granular control.

   • Runs on more platforms
   • No shared features
   Stale: 249 days without a release

   240 55.6 = Compare
8. 8
   CH

   Chanty

   Chanty is a team chat app with unlimited message history, group calls, task boards and file storage for small teams.

   • Runs on more platforms
   • No shared features
   No dated release history published

   305 40.0 = Compare