Bip39-Standalone. Also, BIP39 defines the passphrase solution, that adds a reasonable level of additive security just in case your seed phrase is stolen or if not accidentally uncovered. Having said that, Additionally, it provides some risk, so it is recommended for more knowledgeable people. Depending on your particular person situation, https://mpowerdirectory.com/listings653448/bip39-word-list-numbers-https-linktr-ee-bip39-rumored-buzz-on-bip39-mnemonic-code-converter-tool