Bip39-Standalone. Recognize the dangers – forgetting the passphrase implies losing use of funds: It’s critical to know that forgetting/shedding your passphrase will cause forever dropping access to the linked wallet and the funds it has. BIP39 specifies a list of 2048 words from which the mnemonic phrase is decided on. https://natural-bookmark.com/story19469554/bip39-https-linktr-ee-bip39-about-ian-coleman-bip39