End-to-end encrypted synchronization for your calendars, contacts and tasks. Integrates with your existing apps so you barely notice it’s there. Open source and zero-knowledge. Everything is encrypted on the client side and the server never has access to your data, even if compromised. Self-host for free or use the hosted service.
Hi, I’m Tim, the developer of SilentSuite.
I built this because I wanted a modern, actively maintained alternative for end-to-end encrypted calendar, contacts and tasks sync, something open source, self-hostable, and easy to use with the apps you already have.
SilentSuite is currently in public beta. It supports:
- Web app
- Native Android sync
- Desktop Bridge (CalDAV/CardDAV for Thunderbird, Outlook, Apple Calendar, etc.)
- Full self-hosting
Happy to answer questions or hear feedback. Thanks for checking it out!