Grille Cipher Encoder
Encrypt text using the Grille (Cardano) cipher. Places text through holes in a rotating grid to produce an encrypted grid that hides the message.
How to Use Grille Cipher Encoder
Select a grid size, enter your plaintext, and click Encrypt. The tool generates a random grille mask and fills the grid through 4 rotations.
Step-by-Step Instructions
- Select grid size (4x4, 6x6, or 8x8)
- Enter plaintext to encrypt
- Click Encrypt with Grille Cipher
- View the grille mask and encrypted grid
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