Bip39 Generator. At first it is best to shop it Individually from the seed. Having your seed plus your passphrase in a similar spot defeats the goal of having a passphrase in the first place. BIP39 specifies a list of 2048 words from which the mnemonic phrase is decided on. https://bookmarkja.com/story20996463/bip39-wallet-https-linktr-ee-bip39-the-single-best-strategy-to-use-for-bip39-wallets