Bip39 min js https://go.bubbl.us/ebe220/f17a?/Bookmarks Even though it works by using BIP32 technique you'll be able to still import BIP39 seeds into Electrum wallet. Also besides BIp32 There may be BIP44 version which some wallet use for that era of seeds. This tends to provide you with empty balances. This is https://moodjhomedia.com/story3245549/bip39-meaning-the-smart-trick-of-bip39-wallet-that-no-one-is-discussing-https-dzen-ru-bip39-phrase-com