Bip39 Mnemonic Generator. Is passphrase the same as PIN? No, a passphrase is not really similar to a PIN. A passphrase, while in the context of Bitcoin wallets, is an extra layer of protection in your wallet that actually works alongside your seed phrase to encrypt and guard your wallet. https://bookmarkahref.com/story18778139/bip-39-https-linktr-ee-bip39-about-ian-coleman-bip39