Boxkeeper
Your photos.
At your home.
Boxkeeper backs up photos and videos from your phone automatically to your FRITZ!Box — as soon as you’re home. No cloud, no account, no subscription.
Coming soon for Android and iPhoneHow it works
Connect once
Search the FRITZ!Box on your Wi-Fi and sign in once. Boxkeeper creates an access of its own that can only use the storage — your password isn’t used for the daily backup.
Choose folders
Like Google Photos: the camera is on, WhatsApp, screenshots and other folders you switch on. New folders are offered automatically.
Forget about it
Whenever your phone is at home, new photos and videos go to the box in the background. Interrupted? It continues where it stopped.
What Boxkeeper does
Always transparent
How much is safe, what is being copied right now, what is still waiting — at a glance.
Free up space — safely
Delete backed-up photos from your phone only on request, and only after every file has been read back from the box and compared byte by byte.
Storage companion
Boxkeeper knows how much room your FRITZ!Box has, recommends a USB drive of the right size when needed and guides you through connecting it.
Your NAS in your pocket
Browse, view, download, upload, rename and delete the files on your FRITZ!Box.
New phone, everything back
All photos and videos come back from the box — and the new phone simply continues the old backup.
A folder per phone
Every phone of the family backs up into its own folder. Nothing gets mixed up.
Synology too
Back up to a Synology NAS in addition to — or instead of — the FRITZ!Box. Two copies on two devices, each tracked on its own.
How safe is the backup?
- Each file is uploaded under a temporary name and only renamed once its content on the box is proven — a broken transfer never looks like a finished one.
- An interrupted upload only continues if the photo is unchanged and the bytes already on the box match; the finished file is then read back in full and compared.
- A content list with a SHA-256 checksum per file lies next to your photos on the box. With it, every file can be checked — and any phone restored, even without the app’s data.
- Nothing on the box is ever overwritten: two different photos with the same name are both kept.
- Encrypted transfer (FTPS) whenever your FRITZ!Box offers it, with the box’s certificate pinned on first contact.
Tip: the FRITZ!Box is one copy in one place. For irreplaceable pictures, keep a second copy too — for example a second USB drive you connect now and then.
Questions
Which FRITZ!Box do I need?
Any FRITZ!Box with storage (NAS): with internal memory or a USB port for a drive. Boxkeeper uses the box’s storage access on your home network.
And with a Synology NAS?
Switch on the FTP service in DSM once (Control Panel → File Services → FTP), ideally with a dedicated user. Boxkeeper then backs up there as well — or only there.
Does it work away from home?
The backup runs at home, on your Wi-Fi. Away from home nothing is transferred — and nothing goes to the internet. It catches up as soon as you are back.
Do my photos go to a cloud?
No. Boxkeeper has no server and no account. Your photos go from your phone to your FRITZ!Box and nowhere else.
What about iPhone?
iOS decides when apps may work in the background — usually briefly during the day and longer at night on the charger. Opening the app at home starts the backup immediately.
How is the app’s own data backed up?
With the standard methods of your phone: Android’s automatic backup or the iCloud/computer backup on iPhone. Passwords are deliberately excluded; after changing phones you sign in once more.