Bip39 seed generator https://www.anime-planet.com/users/zoriuswxxq Even though it takes advantage of BIP32 process it is possible to nonetheless import BIP39 seeds into Electrum wallet. Also aside from BIp32 There's BIP44 Edition which some wallet use with the technology of seeds. How much stability does a passphrase incorporate? A BIP39 passphrase noticeably https://bookmarkloves.com/story22942522/enter-your-bip39-mnemonic-the-definitive-guide-to-bip39-converter-https-dzen-ru-bip39-phrase-com