Bip39 Mnemonic Code Converter Tool. Is passphrase similar to PIN? No, a passphrase is not really similar to a PIN. A passphrase, while in the context of Bitcoin wallets, is an additional layer of stability to the wallet that works alongside your seed phrase to encrypt and defend your wallet. https://dirstop.com/story23310728/bip39-https-linktr-ee-bip39-getting-my-ian-coleman-bip39-to-work