Chatwoot
Chat & CommunicationOpen-source customer engagement and live-chat platform
Replaces Intercom, Zendesk
Best PostgreSQL Chat & Communication for self-hosting
The 7 best PostgreSQL chat & communication you can self-host, ranked by community traction.
Papercups
Chat & CommunicationOpen-source live chat and customer messaging
Replaces Intercom, Drift
Zammad
Chat & CommunicationWeb-based helpdesk and customer support system
Replaces Zendesk, Freshdesk
Spacebar
Chat & CommunicationSelf-hostable, open-source Discord-compatible chat backend
Replaces Discord
Bonfire
Chat & CommunicationFederated social networking toolkit for communities
Replaces Facebook Groups, Discord
Comentario
Chat & CommunicationPrivacy-friendly, self-hosted web comments engine
Replaces Disqus
matrix-media-repo
Chat & CommunicationStandalone media storage for Matrix homeservers
Replaces Slack file storage
No apps match these filters.
At a glance
| App | Deploy effort | Difficulty | Min. RAM | License | ★ Stars |
|---|---|---|---|---|---|
| Chatwoot | Under-an-hour setup | Medium | 2,048 MB | MIT | 37,766 |
| Papercups | Under-an-hour setup | Medium | 1,024 MB | MIT | 6,116 |
| Zammad | Under-an-hour setup | Medium | 4,096 MB | AGPL-3.0 | 6,011 |
| Spacebar | Under-an-hour setup | Hard | 1,024 MB | AGPL-3.0 | 2,204 |
| Bonfire | Under-an-hour setup | Hard | 1,024 MB | AGPL-3.0 | 942 |
| Comentario | Under-an-hour setup | Easy | 256 MB | MIT | 700 |
| matrix-media-repo | Under-an-hour setup | Hard | 512 MB | Apache-2.0 | 239 |
Quick picks
- Most adopted: Chatwoot (37,766 GitHub stars).
- Lightest footprint: Comentario (from 256 MB RAM, against 4,096 MB for the heaviest here).
- Licensing: 3 of 7 use MIT; check the rest individually if you plan to modify and redistribute.
Every option here is open-source and self-hostable, tagged PostgreSQL within the chat & communication category. Deploy effort is graded from published container recipes, not vendor claims — see the methodology.