File vault
Encrypt any file with a password. You get a .boxtoss file to keep or send: only that password can open it.
Encrypt a file
No file chosen
Open a .boxtoss file
No file chosen
Argon2id + AES-256-GCM. Everything happens in your browser: the file is never uploaded. If you forget the password, nobody can recover the file, not even us.
Lock any file with a password, directly in your browser. You get a .boxtoss file you can keep or send: only that password can open it. Your file is never uploaded.
How it works
- 1
Choose a file and enter a strong password.
- 2
Download the locked .boxtoss file.
- 3
To open it, come back here with the file and the password.