Decsync Calendar Sync
Calendar & ContactsFile-based calendar and contacts synchronization
Replaces Google Calendar
Best No-Database Calendar & Contacts for self-hosting
The 4 best No-Database calendar & contacts you can self-host, ranked by community traction.
Xandikos
Calendar & ContactsGit-backed CalDAV and CardDAV server
Replaces Google Calendar, iCloud
Framadate
Calendar & ContactsOnline polling and meeting scheduling tool
Replaces Doodle
InfCloud
Calendar & ContactsWeb client for CalDAV and CardDAV servers
Replaces Google Calendar web
No apps match these filters.
At a glance
| App | Deploy effort | Difficulty | Min. RAM | License | ★ Stars |
|---|---|---|---|---|---|
| Decsync Calendar Sync | Read-the-docs project | Medium | 128 MB | GPL-3.0 | 702 |
| Xandikos | Under-an-hour setup | Medium | 64 MB | GPL-3.0 | 609 |
| Framadate | Under-an-hour setup | Easy | 128 MB | CECILL-B | 600 |
| InfCloud | Read-the-docs project | Easy | 32 MB | GPL-3.0 | 89 |
Quick picks
- Most adopted: Decsync Calendar Sync (702 GitHub stars).
- Lightest footprint: InfCloud (from 32 MB RAM, against 128 MB for the heaviest here).
- Licensing: 3 of 4 use GPL-3.0; check the rest individually if you plan to modify and redistribute.
Every option here is open-source and self-hostable, tagged No-Database within the calendar & contacts category. Deploy effort is graded from published container recipes, not vendor claims — see the methodology.