Bip39 github https://www.plurk.com/p/3hf2syltjx While it takes advantage of BIP32 approach it is possible to still import BIP39 seeds into Electrum wallet. Also in addition to BIp32 You can find BIP44 version which some wallet use for the generation of seeds. For the reason that including a passphrase to your seed https://bookmarkforest.com/story20413042/bip39-excel-the-smart-trick-of-bip39-word-list-github-that-no-one-is-discussing-https-linktr-ee-bip39