Protect your seed phrase.
Encrypt your real seed phrase. Create a decoy wallet seed. Download both. Everything runs in your browser. We never see your keys.
Your real seed phrase
Your decoy seed phrase
Set your passwords
How to use your backup.
Store the encrypted file.
Save the ciphertext. It's safe. Without a control file and your passwords, it's meaningless data.
Keep both control files separate.
The real control file goes somewhere only you can access. The decoy control file goes somewhere plausible. A notes app. A drawer. Somewhere an attacker would find it.
Under duress, hand over the decoy.
They decrypt your backup with the decoy control file. They see a wallet with dust. Your real holdings are behind the real control file. Both decrypt correctly. Neither can be disproven.
Zero knowledge. Zero trust required.
This page runs entirely in your browser. Your seed phrase is never transmitted. Open DevTools. Check the network tab. Nothing leaves your machine.
Need to restore from a backup? Restore tool. Want to split your control file between trusted people? Shamir's Secret Sharing. Want to hide your backup inside an image? Steganography.