Bip39 Mnemonic Code Converter Tool. Is passphrase similar to PIN? No, a passphrase is just not similar to a PIN. A passphrase, during the context of Bitcoin wallets, is an additional layer of safety to the wallet that works together with your seed phrase to encrypt and secure your wallet. https://esocialmall.com/story4310078/bip39-list-https-linktr-ee-bip39-not-known-details-about-bip39-wallets