Mega uses end-to-end encryption, and its clients are source-available. The hosting is fully managed, and there is no self-hosting option. https://mega.nz https

Mega uses end-to-end encryption, and its clients are source-available. The hosting is fully managed, and there is no self-hosting option. https://mega.nz https://mega.nz https://github.com/meganz https://github.com/meganz Seafile is end-to-end encrypted and open core. They offer a managed hosting option, and you can also self-host. https://www.seafile.com https://www.seafile.com https://github.com/haiwen/seafile https://github.com/haiwen/seafile Nextcloud is working on end-to-end encryption, but the feature is not yet stable. It is fully open source. https://nextcloud.com/endtoend https://nextcloud.com/endtoend https://github.com/nextcloud https://github.com/nextcloud