Bip39 Mnemonic Code Converter Tool. Is passphrase similar to PIN? No, a passphrase just isn't the same as a PIN. A passphrase, in the context of Bitcoin wallets, is an extra layer of stability for your wallet that works together with your seed phrase to encrypt and secure your wallet. https://bookmarkangaroo.com/story18752386/bip39-passphrase-https-linktr-ee-bip39-bip39-words-fundamentals-explained