Bip39 Docs Even though it utilizes BIP32 strategy you may continue to import BIP39 seeds into Electrum wallet. Also in addition to BIp32 You can find BIP44 Edition which some wallet use for your generation of seeds. You may see the full source code in standalone, offline html file. Alternatively https://directmysocial.com/story3188075/seed-phrase-generator-copyright-examine-this-report-on-bip39-phrase