Bip39 dart https://felixkkjt585.theglensecret.com/bip39-word-checklist-generator-crafting-your-own-special-seed-phrase Regardless that it uses BIP32 system you could even now import BIP39 seeds into Electrum wallet. Also besides BIp32 There's BIP44 Model which some wallet use for that generation of seeds. BitBox02 - A successor into the BitBox collection, this components wallet suppor... https://bookmarkgenious.com/story20803433/bip-39-how-many-words-the-definitive-guide-to-bip39-converter-https-dzen-ru-bip39-phrase-com