CoinSeal

Your Seed Phrase Storage & Recovery App

Store your cryptocurrency seed phrases safely and securely against all threats - including quantum computing.

PQC CNSA 2.0 encryption for maximum security
Support for 12, 18, and 24-word seed phrases
Layered, customizable, and extensive security for every seed
Offline storage in secured data centers

Our Mission

Just as seed phrases made private keys human-readable, Coinseal's mission is to make them easy to remember and safely stored digitally—so you never lose them again.

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PRIVATE KEYS
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SEED PHRASE
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COINSEAL

THE NEXT STEP IN CRYPTO ASSET SECURITY

How CoinSeal Works

We expand on what already exists - CoinSeal provides another layer of security for storing, accessing, and managing your seed phrases.

Create a Vault

Sign up and create a new vault to secure your seed phrase. The first one's free.

Encrypt Your Seed Phrase

Choose various security controls from PIN codes to 20-character passphrases and stop attackers in their tracks.

Secure Access

Our seed security is post-quantum cryptographically secure. Even we can't access your seed phrases.

Security First

CoinSeal aims to be prepared for every threat through best security practices, compliant encryption standards, and attention to detail.

End-to-End Quantum-Resistant Encryption

Your seed phrases never are never revealed to anyone but yourself. If our databases are ever leaked, even quantum computers will not be able to decrypt them.

Offline Storage

We store your seed phrases in an offline storage, meaning we only access them when you need them.

No Custodial Control

In a zero-trust system, you are still responsible for the keys to your vault. If you lose access to your vaults, we have no way to unlock them.

Security Layers

Choose from a variety of options on how to secure your account and vaults - OTP auth, passphrases, PIN code, and more.

CoinSeal

Secure your cryptocurrency seed phrases with military-grade protection.

Company

Legal

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