Bip39 tool github http://www.mediafire.com/file/uilrjfajg2ami24/pdf-14673-57158.pdf Although it works by using BIP32 method you may continue to import BIP39 seeds into Electrum wallet. Also other than BIp32 there is BIP44 version which some wallet use for that generation of seeds. BIP39 is like a chance to “study” and recognize the seed phrase. https://sociallawy.com/story10711569/bip39-mnemonic-code-converter-tool-helping-the-others-realize-the-advantages-of-bip39-passphrase-https-cutt-ly-uryc5rw7