Send a file that can be opened exactly once. It's locked on your device — we never see it.
Drop a file here
or click to choose
More options
1
Send the locked file
Email, drive, chat — any way you like. It's unreadable without the key.
2
Send the link
Use a different app than the file — e.g. file by email, link by text.
3
Tell them the PIN
Best said out loud — a phone call, or in person.
The file opens once. If they lose it after opening, you'll need to lock and send it again — there's no second chance, by design.
Or let us deliver the link and PIN
Delivering the PIN through us means our server briefly sees it. Your file is still never uploaded — even we can never open it. For maximum separation, tell them the PIN yourself.
Locked on your deviceYour file never leaves your hands unencrypted — or at all.
You send it yourselfWe only hold a tiny key, never the file.
Key burns on openOne open, then the key is destroyed forever.