Flammenmensch

Coffer - Your family photos, encrypted. Not even we can see them.

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Coffer is a private space for families to share photos and memories — with no accounts for recipients, and no access for anyone else. Not even Coffer. Every photo is encrypted on your device before it leaves. The server stores only ciphertext. No algorithm, no feed, no engagement loop. To share: send a link and a 6-digit code. They open it, enter the code, and see your photos. No sign-up. No app to install.

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Flammenmensch
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My wife and I moved abroad a few years ago. Both sets of parents are back home. When she became pregnant, we wanted to share things with them — scans, small moments, the kind of photos you take just for family — but none of the options felt right. You wouldn't share the ultrasound scan of your baby over Instagram. That felt obvious to us. But the alternatives weren't much better. iCloud shared albums work, but they feel impersonal and get buried in a camera roll. WhatsApp is where conversations happen, not where memories live — you can't go back six months and find a specific moment easily. What we wanted was a place that belonged to our family. Not a thread, not a feed. A place you could open and scroll through, organised and calm, that no one else could see. So we built Coffer. Every photo is encrypted on your device before it goes anywhere. The server stores a locked box. We cannot read your content — that is not a privacy policy promise, it is a technical fact. To share with family: you send them a link and a 6-digit code. They open it, enter the code, and there are the photos. No account. No app to install. We built this for our own family first. I hope it's useful for yours too.