SparkleShare is open-source client software that provides cloud storage and file synchronization services.

Cryptomator is a multi-platform transparent client-side encryption of your files in the cloud.

AeroFS is an enterprise file sync and share & collaboration software.

EncFS is a Free (LGPL) FUSE-based cryptographic filesystem. It transparently encrypts files, using an arbitrary directory as storage for the encrypted files.

PDF Studio is a multi-platform PDF editor.

odrive is a Universal sync client to unify, sync, share, and encrypt all your files in Amazon Cloud Drive, Dropbox, Google Drive, OneDrive, Box, S3, WebDAV, F…

QOwnNotes is a free open source (GPL) plain-text notepad with markdown support and todo list manager for GNU/Linux, MacOS and Windows, that (optionally) works…