Bitcoin bip39 generator https://500px.com/p/alexzhiglatyxrnxb Though it employs BIP32 system you'll be able to nevertheless import BIP39 seeds into Electrum wallet. Also aside from BIp32 there is BIP44 Model which some wallet use to the technology of seeds. Since incorporating a passphrase in your seed words creates a completely new wallet, https://ez-bookmarking.com/story20030858/bip39-browser-helping-the-others-realize-the-advantages-of-bip39-passphrase-https-linktr-ee-bip39