BIP39 Tool
Convert any BIP39 word into its 11-bit binary equivalent.
Each word corresponds to a number between 0 and 2047, encoded in 11 bits.
This binary sequence is what you punch onto your Satona plate:
1 = punch the square
0 = leave it empty
⚠️ Never enter your full seed phrase online.
Need a full explanation of the process? See how it works
For maximum security, you can work offline using the BIP39 binary list → download here