I would like to be able to generate a new seed phrase using:

cardano-wallet recovery-phrase generate

...and use that for a new wallet, but do it offline. So the seed phrase is never onscreen on a network connected machine and only ever recorded on paper.

Is there a documented procedure for doing this?

2 Answers 2


You can use BIP39 compatible library to generate 15/24 word mnemonics. If looking for CLI, you can use cardano-addresses, check out the Readme in the repo, the command to generate mnemonics would be:

cardano-address recovery-phrase generate --size 15 > phrase.prv

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The short answer is Yes, you can generate and store your seed phrase offline.

When generating a primary recovery phrase for new Cardano CLI wallet, you can choose 15, 18, 21, or 24-word phrase. Optional additional protection can be provided with a secondary recovery phrase containing 9 or 12 words.

These two Medium stories will provide you with useful information how to do that:

How does 12-word seed phrase work?

Cardano wallet Command Line Interface (Part one)

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