Bip39 to slip39 https://ameblo.jp/generate-bip39brooks/entry-12913353546.html Though it makes use of BIP32 method you can however import BIP39 seeds into Electrum wallet. Also apart from BIp32 You can find BIP44 Variation which some wallet use with the technology of seeds. Due to the cryptographic layout of BIP-39, a weak passphrase would not https://bookmarkmiracle.com/story21951128/bip39-to-binary-the-single-best-strategy-to-use-for-bip39-word-list-txt-https-cutt-ly-uryc5rw7