Bip39 Mnemonic Brute Force Making entropy can be done manually or with a computer. Equally solutions have pros and cons, but when generating entropy, care has to be taken to make certain that the method is completed effectively which is totally free from outdoors manipulation or observation. For your needs https://mnobookmarks.com/story18469773/bip39-dotmap-considerations-to-know-about-seed-phrase-generator