Your Seed Phrase Deserves More Than Luck

Turn any seed phrase into an offline, fully encrypted, sovereign backup you can recover anywhere — with only your password.

No vendor lock-in. No cloud dependence. No exposure. Just you, your password, and sovereign offline recovery that always works.

Local encryption • Hidden-in-plain-sight backups • Sovereign Mode option • Offline recovery

Desktop app for backing up any wallet's seed phrase — not a wallet or exchange.

Your crypto recovery plan has blind spots

MyColdKey closes every one — and lets you test recovery before you need it.

Before (Traditional Crypto Backups)

Plain text & one-shot backups

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Seed phrases stored in plain text or stamped into metal — easy to leak, steal, photograph, or expose if found.
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Obvious "crypto devices" make you a target at home or while traveling.
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Backups locked to one vendor, app, or device — zero portability.
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One-shot backups — fire, theft, or loss can mean total loss.

With MyColdKey

Resilient, encrypted, and testable

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AES-256 + Argon2id memory-hard encryption protects your seed.
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Hidden-in-plain-sight backups that look harmless to attackers.
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Not tied to any vendor — recover anywhere you have your password.
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Unlimited copies and multiple recovery layers for true resilience.

How MyColdKey Works

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You choose what to protect

Wallet seed phrases, private keys, passwords, sensitive text — or generate brand-new offline BTC & ETH wallets. No technical skills required.

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We convert it into a Sovereign Encrypted Artifact

Memory-hard encryption, zero metadata, local-only. Nothing leaves your device.

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You choose your recovery method(s)

Pick the backup formats that fit your life — QR, file, text, Shamir shares, titanium, Cloud+.

Truly sovereign by design — encryption is fully local, nothing leaves your device unless you export it, and activating Sovereign Mode disables all telemetry permanently.

Your Backup, Your Way — Hidden-In-Plain-Sight & Fully Recoverable

How to Recover

Emergency Recovery Kit

Fully offline CLI — recover on any computer, even if MyColdKey disappears.

Scan an Encrypted QR

Use your webcam or phone to decrypt locally.

Upload an Encrypted File

.enc, .txt, and .pdf all decrypt instantly offline.

Recover with Shamir Shares

Any M-of-N shares restore your encrypted secret.

Backup Formats

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Hidden-in-plain-sight encrypted QR
Printable, screenshot-safe, photographable, engravable.

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Encrypted Artifact (file/text/PDF)
Zero-metadata file; works on any computer, anywhere.

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Shamir shares (2–10)
Threshold-based redundancy; ideal for heirs / family.

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Titanium plate backup — $129
Fireproof, waterproof, EMP-resistant, 100-year durability.

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Titanium SSS sets — from $299
Encrypted multi-location metal-share recovery.

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Cloud+ encrypted backup — $39/yr
Zero-knowledge redundancy across devices.

Choose your protection level

Start free to build trust. Upgrade when you're ready to secure everything.

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Free Forever

Forever

Local-only encryption, limited features

✓ AES-128 local encryption for your secrets.
✓ Argon2id key derivation with HMAC integrity verification.
✓ Zero logging — your sensitive data never leaves your device.
✓ Perfect for testing MyColdKey with low-risk secrets.

Lifetime Pro

$149

One-time payment

Full offline vault forever.

✓ AES-256-GCM encryption with advanced settings for power users.
✓ Unlimited encrypted backups in every format — file, QR, shares, titanium-ready.
✓ Emergency Recovery Kit and Shamir's Secret Sharing for resilient recovery plans.
✓ Generate unlimited offline BTC & ETH wallets with cryptographically secure random keys.
✓ Sovereign Mode option — turn off all optional telemetry and keep recovery fully vendor-independent.
✓ No recurring charges ever for your Lifetime Pro license.

Extra devices: add another slot anytime for $49

Premium Security Add-Ons

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Titanium Plate — $129

Fireproof, waterproof, EMP-resistant. 100-year durability.

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Titanium SSS Set — from $299

Multi-location recovery using encrypted metal plates.

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Cloud+ backup — $39/year

Zero-knowledge redundancy across devices.

Encrypt anything, recover anywhere, stay offline.

Start free, upgrade when you're ready to protect everything.

🚀 Coming Soon