The decentralized vault for your secrets

Encrypt seed phrases, private keys, passwords and sensitive files on-chain with secure recovery infrastructure built for self-custody.

Vault

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Attorney

Backup

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Architecture

Simple, elegant recovery.

Enter your seed phrase, password, note, or file inside the Nythera extension. The website never receives the secret.

Friends, family, or teammates help approve recovery. They cannot see your secret.

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Device

Your encrypted vault and recovery rules are recorded. Recovery only works when your conditions are met.

Recovery approvals are collected. The secret reappears only inside the extension.

No. Vault contents are encrypted client-side before being stored or uploaded. The app stores vault metadata, not plaintext secrets.

Only the owner wallet and trusted contacts you approve can recover a vault.

Yes. Email contacts can be resolved to wallet-linked recipients where supported, making recovery easier for less technical guardians.

Yes. You can add, remove, or replace recovery contacts after a vault is created.

You can store text secrets like seed phrases or recovery instructions, and encrypted files backed by Walrus storage.

Yes. Successful recoveries are recorded in the vault's local recovery history so you can see how many times a vault has been recovered.