Bip39 Private Key Generator Although it employs BIP32 system you may still import BIP39 seeds into Electrum wallet. Also apart from BIp32 There exists BIP44 Model which some wallet use with the technology of seeds. You could see the total source code in standalone, offline html file. Alternatively you may https://letusbookmark.com/story20105020/bip39-vs-bip84-5-easy-facts-about-seed-phrase-generator-described