Seafile
lastmod 2026-11-10created 2015-12-192 edits
Seafile is an open-source file sync and sharing platform that you install and run on your own server. Like Dropbox, it syncs folders through a desktop client and shares files on the web, and it supports client-side encryption per library so that even the server operator cannot see the contents. The server core is written in C, making it lightweight with relatively fast sync, and it comes in a Community Edition and a Pro Edition.
Cloud storage with client-side Encryption.