Bip39 library https://felixkkjt585.theglensecret.com/bip39-word-checklist-generator-crafting-your-own-special-seed-phrase Even though it utilizes BIP32 process you could however import BIP39 seeds into Electrum wallet. Also besides BIp32 There exists BIP44 Variation which some wallet use to the technology of seeds. BIP39 improves wallet stability by building backups trusted, easy, and... https://e-bookmarks.com/story6324231/bip39-passphrase-recovery-bip39-converter-an-overview-https-linktr-ee-bip39