Open Source Alternatives to iCloud

A cloud storage and synchronization service that keeps photos, files, notes, mail and other data up to date across Apple devices and web browsers.

Whether you want to cut software costs or escape vendor lock-in, these open source alternatives to iCloud give you an option you fully own. You can self-host them, so your data stays on infrastructure you control. This page lists 2 open source alternatives to iCloud. The most popular are Cypht and Twake Mail. Most use the AGPL-3.0 or LGPL-2.1 license, and 2 offer an official Docker image.