Bip39 Passphrase Generator. Is passphrase similar to PIN? No, a passphrase is not really similar to a PIN. A passphrase, within the context of Bitcoin wallets, is an additional layer of safety to your wallet that actually works alongside your seed phrase to encrypt and secure your wallet. A PIN, https://webcastlist.com/story20102175/bip39-generator-https-linktr-ee-bip39-bip39-wallets-things-to-know-before-you-buy