Mnemonic checksum calculator

This tool is meant for testing and learning purposes!

Use hardware wallets such as the BitBox02 or a SeedSigner to securely calculate the last word of your mnemonic.
If you still insist on using this tool, make sure to run it offline on a secure and isolated system (e.g. Tails).

Output will update as you type

Note: Sparrow Wallet v1.7.4 features auto-completion for the last word of BIP-39 mnemonic phrases, similiar to what this tool offers, thereby being the much safer and straight-forward solution.