Bip39 Mnemonic Generator. The passphrase is not really selected from the predefined list of 2048 words – it can be any word or phrase you choose. Yes, BIP39 passphrases are case-sensitive. Be sure to enter your passphrase exactly as you established it up, together with any uppercase or lowercase letters. https://wildbookmarks.com/story18920565/bip-39-https-linktr-ee-bip39-about-ian-coleman-bip39