Bip39 Tool. The password could be written down along with the mnemonic phrase, but It might be more effective to keep in mind it, to ensure a extremely two-factor recovery system can be obtained: for unblocking Bitcoins, you may need “what you may have” plus “what you know”. BIP44 defines https://getidealist.com/story20506128/bip39-mnemonic-https-linktr-ee-bip39-getting-my-bip39-wallets-to-work