Bip39 Seed Generator. Is passphrase similar to PIN? No, a passphrase will not be the same as a PIN. A passphrase, while in the context of Bitcoin wallets, is an additional layer of stability on your wallet that works along with your seed phrase to encrypt and shield your wallet. https://myfirstbookmark.com/story18794643/bip-39-https-linktr-ee-bip39-getting-my-bip39-passphrase-to-work