Bip39 Word List Cryptotag Even though it uses BIP32 system you could nonetheless import BIP39 seeds into Electrum wallet. Also aside from BIp32 There may be BIP44 Variation which some wallet use for the generation of seeds. You could see the complete source code in standalone, offline html file. Alternatively https://extrabookmarking.com/story18756198/bip39-private-key-the-fact-about-bip39-phrase-that-no-one-is-suggesting