Synchronize calendar events from multiple sources into a single, aggregated feed across various platforms.
Sponsored
Keeper is an open-source calendar synchronization tool designed to consolidate events from diverse sources like Google, Outlook, iCloud, and CalDAV into a unified, anonymized feed. It addresses the common challenge of managing multiple calendars (e.g., business, work, personal) by ensuring time slots align across all platforms, preventing scheduling conflicts. The tool focuses on tracking timeslots rather than detailed event content and is built for easy self-hosting, offering full premium features to self-hosters.
Key Features
01Push consolidated events to one or more destination calendars
02Supports Google Calendar and Microsoft Outlook integrations
03Event content agnostic syncing engine, tracking only timeslots
04Aggregate events from remote iCal/ICS links and major calendar services
05Open-source under AGPL-3.0 and easy to self-host with Docker
06408 GitHub stars
Use Cases
01Consolidating personal, work, and business calendars to prevent overlapping appointments
02Self-hosting a private and reliable calendar synchronization solution with full data autonomy
03Creating a unified calendar view from various online calendar services and iCal feeds
