Bip39 Generator. Enhanced protection: By storing your keys offline, hardware wallets secure from online hacks and malware. For words that only have three letters, there's no 4th letter. For example Together with the word “include”, there isn't any much more letters afterwards and therefore has to be the word "increase". https://directory-b.com/listings13040290/bip39-vs-slip39-https-linktr-ee-bip39-a-simple-key-for-bip39-github-unveiled