Bip39 standalone html https://papaly.com/1/eMEf While it employs BIP32 strategy you are able to still import BIP39 seeds into Electrum wallet. Also other than BIp32 There's BIP44 version which some wallet use for your era of seeds. This additional complexity improves the danger of misplacing the passphrase, and so losing your https://express-page.com/story6247382/bip39-buffer-is-not-defined-a-secret-weapon-for-bip39-mnemonic-https-x-com-tundra838554