Bip39 Mnemonic Code Converter Tool. Is passphrase similar to PIN? No, a passphrase will not be similar to a PIN. A passphrase, during the context of Bitcoin wallets, is an extra layer of protection to your wallet that works along with your seed phrase to encrypt and defend your wallet. https://binksites.com/story9304011/bip-39-https-linktr-ee-bip39-not-known-details-about-bip39-list