Alternatives to Filen
German end-to-end encrypted cloud storage with open-source clients. The listings below can replace it for an important use case. Each note says what changes if you switch.
The original
Filen
German end-to-end encrypted cloud storage with open-source clients.
Replacements
Listings that take over the same core job as Filen.
Internxt
Open-source, end-to-end encrypted cloud storage and photo backup.
Internxt also offers open-source clients with client-side encryption and adds lifetime plans, though it is a young service with uneven sync client reliability.
Proton Drive
End-to-end encrypted cloud storage from Proton for backing up, syncing and sharing files and photos.
Proton Drive keeps end-to-end encryption and adds automatic mobile photo backup, but it lists Android, iOS and web apps, requires a Proton account and is closed source.
MEGA
End-to-end encrypted cloud storage with a large free tier.
MEGA has end-to-end encryption by default and a large free tier with clients on all platforms, but it is closed source and applies transfer quotas.
Sync.com
Canadian zero-knowledge encrypted cloud storage.
Sync.com moves storage to Canada with zero-knowledge encryption on everything by default, but its clients are closed source and there is no Linux client.
pCloud
Swiss cloud storage with lifetime plans and optional client-side encryption.
pCloud stores data in Switzerland and offers lifetime plans and a virtual drive, but client-side encryption is a paid add-on and the software is closed source.
Tresorit
Swiss zero-knowledge encrypted storage aimed at businesses.
Tresorit is Swiss zero-knowledge storage aimed at businesses with access controls and European data residency, but it is closed source, paid and more expensive.
Peergos
Self-hostable encrypted storage that hides sharing metadata as well as content.
Peergos is AGPL-3.0 open source, self-hostable with a hosted option, and protects sharing metadata too, though its clients are less polished and performance is modest.
Nextcloud
A file sync and collaboration server you run yourself, with desktop and mobile clients that behave like Dropbox.
Nextcloud swaps a hosted encrypted service for an open-source server you run yourself, so storage is limited only by your own disk and maintenance is yours.
Also worth comparing
These listings name Filen as their own alternative, so the relationship runs both ways.
Koofr
European cloud storage service that can also connect and search your other cloud accounts.
Filen stores data in Germany with zero-knowledge encryption and open-source clients, but it is a smaller and newer provider.
Similar software
Related functionality, not a direct replacement.
Rclone
A command line tool that syncs, copies and mounts files across more than seventy cloud storage services.
Syncthing
Keeps folders identical across your own machines, directly between them, with no cloud account in the middle.
Dropbox
The original file sync service, with clients on every platform.
CryFS
An encrypted filesystem that protects files stored in cloud storage, including their metadata and folder structure.
Icedrive
A cloud storage service with 10GB free, client-side encryption and a mountable virtual drive.
Jottacloud
A Norwegian cloud storage and backup service with automatic photo and file uploads.