OpenCalendars – Unified Google Calendar and iCloud desktop app

Summary: OpenCalendars is a free, open source desktop app that consolidates Google Calendar and iCloud events into a single view. It supports recurring events and works offline on Windows and Linux, providing a unified calendar experience without subscriptions or online dependency.

What it does

It syncs Google Calendar and iCloud events into one interface, handling recurring events fully. The native desktop app functions offline and supports Windows and Linux platforms.

Who it's for

Users who manage multiple calendars and want a privacy-friendly, subscription-free way to view all events together on desktop.

Why it matters

It eliminates the need to switch between calendar services and provides offline access, simplifying multi-calendar management.