ToolToUse

Security & Password

Encrypt / Decrypt File (AES-256)

Password-protect any file with AES-256-GCM, all in your browser.

Supported formats: Any file. If you forget the password the file cannot be recovered. Not compatible with 7-Zip or other apps.

Any file

Encrypt / Decrypt File (AES-256)

Up to 200 MB
Options

Derives a key from your password with PBKDF2-SHA256 (250,000 iterations) and encrypts with AES-256-GCM. The .ttuenc file uses the TTU1 binary format; the text encryption tool Base64-encodes that format. Decrypt here with the same password. If you forget the password the file cannot be recovered. Not compatible with 7-Zip or other apps.

Good to know

Frequently asked questions

How do I use it?

Choose your file, adjust the options and press “Run”. When it finishes, download the result.

How does it work?

Derives a key from your password with PBKDF2-SHA256 (250,000 iterations) and encrypts with AES-256-GCM. The .ttuenc file uses the TTU1 binary format; the text encryption tool Base64-encodes that format. Decrypt here with the same password.

Are there limitations?

If you forget the password the file cannot be recovered. Not compatible with 7-Zip or other apps.

Are my files uploaded?

No. Files are processed on your device and never sent to our servers. No account is needed.

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