Bip39 Mnemonic Generator. Is passphrase similar to PIN? No, a passphrase is just not similar to a PIN. A passphrase, while in the context of Bitcoin wallets, is an extra layer of stability to the wallet that actually works along with your seed phrase to encrypt and guard your wallet. https://nanobookmarking.com/story18748778/ian-coleman-bip39-https-linktr-ee-bip39-not-known-details-about-bip39-list