Bip39 Mnemonic Code Converter Tool. Is passphrase similar to PIN? No, a passphrase isn't the same as a PIN. A passphrase, in the context of Bitcoin wallets, is an additional layer of safety in your wallet that actually works along with your seed phrase to encrypt and guard your wallet. https://bookmarkmoz.com/story19154334/bip39-passphrase-https-linktr-ee-bip39-5-essential-elements-for-bip-39