Best Self-Hosted Google Contacts Alternatives in 2026
Google Contacts is a contact management service for organizing, syncing, and sharing contacts across Google services.
4 Self-Hosted Alternatives to Google Contacts
Radicale
4.5KRadicale is a self-hosted calendar & contacts replacement for Google Calendar and Google Contacts.
Baïkal
3.1KBaïkal is a PHP-based application that provides lightweight CALDAV and CARDDAV server based on sabre/dav.
EteSync
1.7KEteSync lets you run secure syncing for contacts, calendars, tasks, and notes entirely on your own server.
SabreDAV
1.7KFor calendar & contacts, SabreDAV is a self-hosted solution that provides CARDDAV, CALDAV, and WEBDAV framework and server.
Why Look for Google Contacts Alternatives?
Google Contacts is a contact management service for organizing, syncing, and sharing contacts across Google services.
Self-hosted alternatives give you full data ownership, predictable costs, and zero vendor lock-in. You run the software on your own infrastructure and control everything.
4 Best Open-Source Alternatives to Google Contacts
Radicale
Simple CalDAV and CardDAV server — 4,474 GitHub stars. Licensed under GPL-3.0.
Baïkal
Calendar and contacts server — 3,099 GitHub stars. Licensed under GPL-3.0.
EteSync
Secure syncing for contacts, calendars, tasks, and notes — 1,734 GitHub stars. Licensed under AGPL-3.0.
SabreDAV
CalDAV, CardDAV, and WebDAV framework — 1,700 GitHub stars. Licensed under MIT.
Why Self-Host Instead of Google Contacts?
- Data ownership. Your data stays on your server, not on Google Contacts’s infrastructure.
- Predictable costs. Pay a fixed VPS cost instead of growing per-user or per-usage fees.
- No vendor lock-in. Export and migrate your data anytime. You control the database.
- GDPR and compliance. Hosting your own tools simplifies data residency and compliance requirements.
Why teams switch from Google Contacts
- → Data ownership. Your data stays on your server -- not on Google Contacts's infrastructure.
- → Predictable costs. Pay a fixed VPS cost instead of growing per-user or per-usage fees.
- → No vendor lock-in. Export and migrate your data anytime. You control the database.
- → GDPR and compliance. Hosting your own tools simplifies data residency and compliance requirements.
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