Bip39 Seed Generator Or for incredibly substantial safety, you can "roll your own" seed phrase with dice or maybe a calculator as offline approaches. You can see the complete resource code in standalone, offline html file. Alternatively you can Test the person css and js data files in the net https://enrollbookmarks.com/story18614659/bip39-hd-wallet-the-smart-trick-of-bip39-phrase-that-nobody-is-discussing