ToolToUse

Security & Password

AES-256-GCM Text Encryption

Encrypt or decrypt text with a password using AES-256-GCM.

If you forget the password the text cannot be recovered. Output works only with this tool (or code that follows the same documented format: TTU1 | salt | IV | ciphertext).

Security & Password

AES-256-GCM Text Encryption

Local only
Everything stays in your browser

Your text is processed on your device — nothing is uploaded to a server.

How it works

AES-256-GCM (authenticated) via @noble/ciphers; the key comes from your password with PBKDF2-SHA256 (250,000 iterations) and a random salt. Runs in your browser; nothing is uploaded. If you forget the password the text cannot be recovered. Output works only with this tool (or code that follows the same documented format: TTU1 | salt | IV | ciphertext).

Good to know

Frequently asked questions

How do I use it?

Enter your text, adjust the options and press “Run”. Check the result, then copy or download it.

How does it work?

AES-256-GCM (authenticated) via @noble/ciphers; the key comes from your password with PBKDF2-SHA256 (250,000 iterations) and a random salt. Runs in your browser; nothing is uploaded.

Are there limitations?

If you forget the password the text cannot be recovered. Output works only with this tool (or code that follows the same documented format: TTU1 | salt | IV | ciphertext).

Is my data uploaded?

No. Everything is processed in your browser and nothing is sent to a server. No account is needed.

Keep exploring

View all