Learn How Encryption Works
See real AES-256-GCM encryption in action.
Strong, standard encryption: AES-256-GCM with a key derived from your password via PBKDF2 (250,000 iterations, SHA-256). Each message uses a fresh random salt and IV.
The password is never stored or sent anywhere — everything runs in your browser. If you lose the password, the message cannot be recovered. Share the encrypted text and the password through separate channels.
learning tips
Encrypt the same text twice — the output differs each time because of the random salt and IV.
A wrong password fails to decrypt rather than producing garbage, thanks to GCM authentication.
The output is base64 of salt + IV + ciphertext — a common real-world layout.
Experiment freely — nothing is uploaded.
Sådan fungerer det
Hvorfor bruge vores?
Also check out…
Share a Secret Safely
Encrypt a password or note to send over chat or em
Encrypt a Private Note
Protect sensitive notes you store or paste somewhe
Send Credentials Securely
Encrypt API keys or logins before sharing with a t
Keep an Encrypted Journal Entry
Encrypt personal writing so only you can read it b