Rallly
GroupwareSelf-hosted meeting and event scheduling polls
Replaces Doodle, When2meet
Best PostgreSQL Groupware for self-hosting
The 4 best PostgreSQL groupware you can self-host, ranked by community traction.
SOGo
GroupwareScalable groupware server with webmail, calendar and contacts
Replaces Microsoft Exchange, Microsoft 365
EGroupware
GroupwareWeb-based groupware and team collaboration suite
Replaces Microsoft 365, Google Workspace
DAViCal
GroupwareServer for sharing calendars and address books via DAV
Replaces Google Calendar, Microsoft Exchange
No apps match these filters.
At a glance
| App | Deploy effort | Difficulty | Min. RAM | License | ★ Stars |
|---|---|---|---|---|---|
| Rallly | Under-an-hour setup | Easy | 512 MB | AGPL-3.0 | 5,303 |
| SOGo | Under-an-hour setup | Hard | 1,024 MB | GPL-2.0 | 2,173 |
| EGroupware | Under-an-hour setup | Medium | 1,024 MB | GPL-2.0 | 298 |
| DAViCal | Under-an-hour setup | Medium | 256 MB | GPL-2.0 | 200 |
Quick picks
- Most adopted: Rallly (5,303 GitHub stars).
- Lightest footprint: DAViCal (from 256 MB RAM, against 1,024 MB for the heaviest here).
- Licensing: 3 of 4 use GPL-2.0; check the rest individually if you plan to modify and redistribute.
Every option here is open-source and self-hostable, tagged PostgreSQL within the groupware category. Deploy effort is graded from published container recipes, not vendor claims — see the methodology.