Local file encryption
Lockana
Encrypt files locally before sending, storing, or backing them up. Your file is locked before it leaves your device. No uploads, no servers, no tracking.
Encrypt a file
Choose any file, set a passphrase, and download an encrypted .goanon file. Only someone with the passphrase can decrypt it.
Drop a file here or click to browse
Any file type — documents, photos, archives, anything
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Don't forget it. There is no recovery — if you lose your passphrase, your file stays encrypted forever. We cannot reset it for you.
Your passphrase is kept in memory only while encrypting and cleared immediately after.
Your passphrase is kept in memory only while encrypting and cleared immediately after.
How it works
Encryption
AES-256-GCM
Key derivation
PBKDF2-SHA256, 600k iterations
File format
.goanon
Data leaves device?
Never
The .goanon format stores: a format header, a 128-bit salt, a 96-bit IV, the original filename, the original MIME type, and the AES-256-GCM ciphertext — all in a forward-parseable layout. Your passphrase is used to derive the encryption key via PBKDF2 — it is never stored anywhere and is cleared from memory after use.