Lock a file for a friend — you can't reopen it, only they can.
You have a file you shouldn't be able to open on your own. A friend holds the password. You lock the file now; only they can unlock it — when they decide to share the password.
The password never leaves your friend's head — you only ever see the lock code, which can lock but can't unlock.
A few things people use it for
The file stays with you, but only your friend's password opens it — so you can't peek until they decide it's time. Good for a promise you've made, a decision you won't revisit, or plain self-control.
Send a file so only the intended person can open it — even if it passes through email, chat or cloud storage where others might get a copy.
Give someone you trust the power to grant access to important files — backups, documents, credentials — when the moment is right, without them ever holding the files and without you being able to open them early.
Pick a password only you know. friend-lock turns it into a shareable lock code — hand that to whoever will lock the file. Your password never leaves this page.
Paste your friend's lock code, add the file(s) or a folder, and lock it. The result looks like an ordinary photo but carries the encrypted data inside — and even you won't be able to reopen it.
Add the .jpg (or .flock) you received, type your password,
and get the original file(s) back. Everything happens here on your device.