Selfhosted

Syncthing for synchronization between devices, then rsync to a couple of flash drives for cold backup.

The setup is so easy, you don't even need a server for this, just your ordinary PC.

There is no more paranoid solution than owning your files on the devices you own as well, so you never have to trust the third party.

Additionally, clunky all-in-one self-hosted solutions like Nextcloud bind you to their ecosystem, so it may be hard for you to switch to another one.

Just a plain file backup to your own storage will always be a savior for your lost data, regardless of third party apps or infrastructure.

Others have suggested: encrypt data on your side and you don't need to worry about where you store it. Cryptomator is a good option.
As for storage, the feedback on Hetzner boxes seems to be good and i'm happy with mega.

What about hetzner storeagebox? https://www.hetzner.com/de/storage/storage-box/ with client side encryption ? It's cheap and reliable, supports all common file transfer methods - the encryption can and likely should anyway be done by your preferred backup tool?

I can recommend Hetzner Storage Boxes. The company is located in Germany, but you can choose server locations in Germany and in Finland. You can set it up with Rclone's Crypt feature to encrypt all your files.

Borg Base offers EU based server locations. They have been awesome to work with.

https://filen.io/

Not pricey, e2ee clients, open source, servers in Germany, 10gb free tier to try them out. Been using them for a few years now. The clients used to be a bit crap but they're very good now.

Just use client-side encryption, then it doesn't matter where it goes

alwyzon storage server in Viennese data center

pCloud is pretty good, and there is an option for an EU server. It doesn't have a Linux client though, so now I use Jottacloud, which is hosted in Norway and has a (CLI) Linux client that works quite well! I also have a locally hosted Nextcloud instance as another backup. More backups is always good!

I used to use B2 before the whole CEO financial issues came out (not another one accused of something unsavoury) and wasn't sure how it's going to pan out. I switched to a cheaper (per GB) Hetzner storage box and am super happy with it

I use restic, specifically https://github.com/garethgeorge/backrest for making backups and uploading them via rclone.

Then don't go to the cloud! (or use encrypted storage if you really have to)

My view: Unless I can access the hardware 24/7/365 the data isn't mine for 'they' can deny me access to my data anytime while they keep full access. (hence store it decryped)

I currently use Infomaniak object storage with restic. I like it since it's Openstack and if they ever go to shit I can easily switch to another Openstack provider. OVH is also one I have used in the past.

https://ihostart.com/ one of the cheapest I know.

https://ardrive.io/ for a permanent, encrypted, decentralized, blockchain based solution.

A raspberry pi hidden in a wall behind a power socket or in some always plugged in appliance like a fridge or tv at some place with wifi or a phone with a data plan connected to a portable solar charger set up on some roof or tree.

if this is for privacy i'd just use the cheapest/fastest option that supports rclone and use its encrypted upload feature.

I use filen and koofr

zfs.rent

• shadow.tech (fast, not so expensive)
• Proton Drive
• or look for a managed Nextcloud solution (Murena Workspace, etc.)

As the prices widely varry by storage size, you may want to add a size estimate, but i can say that anything above a couple tb is probably more expansive than finding a selhosted solution.

Syncthing and an old android device with a big ass ssd connected