Bip39-Standalone. The passphrase is just not selected through the predefined list of 2048 words – it could be any word or phrase you decide on. And you ought to have prepared it down in the event you ended up hoping to keep an option open up to restore your accounts. https://cyberbookmarking.com/story19258834/bip39-generator-https-linktr-ee-bip39-bip39-generator-an-overview