Iancoleman bip39 github https://www.demilked.com/author/gobnettlmz/ Regardless that it uses BIP32 process you can still import BIP39 seeds into Electrum wallet. Also besides BIp32 There may be BIP44 Edition which some wallet use to the technology of seeds. It can be uncomplicated — if you do not be concerned about copyright inheritance, https://dailybookmarkhit.com/story20427919/bip39-tool-bip39-generator-secrets-https-dzen-ru-bip39-phrase-com