Bip39 Mnemonic Code Converter Tool. Is passphrase similar to PIN? No, a passphrase is not really similar to a PIN. A passphrase, during the context of Bitcoin wallets, is an extra layer of safety on your wallet that actually works alongside your seed phrase to encrypt and guard your wallet. https://ztndz.com/story23666251/bip39-passphrase-https-linktr-ee-bip39-the-bip39-wallet-diaries