Bip39 Mnemonic Code Converter Tool. Is passphrase similar to PIN? No, a passphrase just isn't similar to a PIN. A passphrase, inside the context of Bitcoin wallets, is an extra layer of stability to the wallet that actually works together with your seed phrase to encrypt and secure your wallet. https://userbookmark.com/story19562713/bip39-wallet-https-linktr-ee-bip39-bip39-words-secrets