Bip39 offline https://list.ly/i/11078004 Even though it works by using BIP32 method you can still import BIP39 seeds into Electrum wallet. Also other than BIp32 there is BIP44 Model which some wallet use to the era of seeds. Want to check which wallets guidance the BIP39 mnemonic recovery seed phrase? Read https://bookmarkloves.com/story22926561/bip39-meaning-new-step-by-step-map-for-bip39-word-list-txt-https-dzen-ru-bip39-phrase-com