The Next Step in Crypto Asset Security
Store your cryptocurrency seed phrases safely with zero-knowledge, quantum-resistant encryption. CoinSeal never sees your original seed phrase — only a scrambled version that only you can reconstruct.
The Seed Phrase Problem
Your seed phrase is the master key to your crypto. Lose it and your assets are gone forever. Yet the options for securing it are stuck in the past.
Paper Is Fragile
Fire, flood, fading ink. A single piece of paper between you and total loss. One accident and your crypto is gone forever.
Metal Plates Aren't Enough
Stamped steel survives fire, but not a thief who finds it. Physical storage means physical vulnerability — theft, discovery, or seizure.
Memory Fails
Memorizing 12-24 random words is unreliable. People forget, misremember, or pass away — taking their crypto with them.
No Safe Digital Backup
Until now, storing seed phrases digitally meant trusting a third party with your keys. CoinSeal changes that with zero-knowledge encryption.
How It Works
CoinSeal uses a proprietary superposition algorithm that transforms your seed phrase before encryption — so even CoinSeal never knows your original words.
Your seed phrase is then encrypted with quantum-resistant algorithms and stored securely. Only you hold the keys to unscramble and decrypt it.
Security First
Built from the ground up with a zero-trust architecture. Every design decision prioritizes the security of your seed phrases.
Zero-Knowledge Architecture
All encryption and decryption happens in your browser. CoinSeal's servers never see your PIN, passphrase, or unencrypted seed phrase.
Post-Quantum Encryption
CNSA 2.0 compliant. ML-KEM-768 and XChaCha20-Poly1305 protect your data against both classical and quantum computing threats.
Client-Side Encryption
Double encryption model: your browser encrypts first, then the server wraps with AES-256-GCM. Two independent layers of protection.
Non-Custodial Control
You maintain your vault keys. CoinSeal cannot access, recover, or decrypt your seed phrases — by design, not by policy.
Early Adopter Perks
Be among the first to secure your seed phrases with CoinSeal and earn exclusive rewards as a founding member.
Closed Beta Access
Join a select group of testers who will shape the future of seed phrase security. Your feedback directly influences the product.
- Early access before public launch
- Direct line to the development team
- Exclusive beta tester community
- Free premium features during beta
Founding Member NFT
Early waitlist members will receive an exclusive NFT that grants permanent founding member status within the CoinSeal ecosystem.
- Priority access to new features
- Exclusive founding member pricing
- Collectible proof of early adoption
- Governance participation rights
Apply for the Beta
We're reviewing applications on a rolling basis. Tell us about your crypto experience and why you'd like to test CoinSeal. We'll reach out via email when your spot is ready.