Your crypto seeds,
fortress-protected.

SeedCrypt encrypts your mnemonic phrases with military-grade AES-256 and stores them on your hardware — USB key, external disk. Zero cloud. Zero network. Zero compromise.

AES-256-GCM No cloud PBKDF2-SHA512 Windows & Android Free to start
SeedCrypt — Encryption
Mnemonic phrase 12–24 WORDS
██████ ████████ ████ ██████ █████████ ████
████████ ██████ ████ ████████ █████ ███
Password
••••••••••••
Storage
💾 USB Samsung
Network disabled
Encrypt
0+
PBKDF2 iterations
256-bit
AES encryption key
0
Network calls — ever
The Risk

A piece of paper
is not enough.

Your seed phrase gives complete, irrevocable access to your crypto assets. How you store it matters more than anything else.

🔥
Paper
Fire, water damage, tearing. One incident and your wallet is inaccessible forever. Physical doesn't mean safe.
☁️
Cloud / Notes
iCloud, Google Drive, Notion… One account compromise exposes your seed to anyone. Cloud sync = potential breach.
📸
Photo / Screenshot
Automatically backed up to the cloud. Accessible from any connected device. A silent exposure vector.
Features

Built for real security.

AES-256-GCM + PBKDF2-SHA512
Military-grade authenticated encryption with 600,000-iteration key derivation. Resistant to brute-force and dictionary attacks.
100% Offline
No data ever leaves your device. SeedCrypt works entirely without internet. Zero telemetry, zero analytics inside the app.
Multi-storage
Store on USB key, external disk or local folder. Auto-detects connected drives on startup.
QR Code & PDF Export
Export encrypted seeds as scannable QR code or printable PDF. Black-on-white for reliable scanning.
Brute-force protection
Progressive lockout after failed attempts. Protected even if your device is physically stolen.
Auto-clear clipboard
Clipboard cleared 30 s after copy. Decrypted text auto-hides after 60 s. No trace left behind.
Windows & Android
Native app on both platforms. Encrypted seeds fully interoperable across all your devices.
Offline License
License validated locally via HMAC-SHA256. No activation server. No phone home. Ever.
Releases on GitHub
Releases hosted on GitHub. No surprise binary. Download once, use forever, fully air-gapped.
New
Seed Phrase Recovery
Lost 1-2 words from your BIP-39 seed? SeedCrypt brute-forces all combinations and validates the SHA-256 checksum to recover your phrase.
How it works

Simple. Fast. Secure.

1
Enter your seed phrase
Type your 12 or 24 BIP39 words directly into the app. SeedCrypt never sends them anywhere — all operations run locally, offline.
2
Choose a strong password
Your password is stretched through PBKDF2-SHA512 (600,000 iterations) into the AES-256 key. Never stored anywhere.
3
Store on your media
Select your USB key, external disk or local folder. The encrypted .json file is saved. Unreadable without your password.
Pricing

One-time license. Forever.

No subscription. Pay once, use for life. No activation server required.

Free
0€
discover seedcrypt
  • ✓ 1 seed maximum
  • ✓ AES-256 + PBKDF2-SHA512
  • ✗ QR & PDF Export
Download Free
✨ NEW · SeedCrypt Recover
Personal
29€
  • ✓ 5 seeds
  • ✓ AES-256 + PBKDF2-SHA512
  • ✓ QR & PDF Export
  • ✓ 1 device
Buy
✨ NEW · SeedCrypt Recover
Popular
Family
49€
  • ✓ 15 seeds
  • ✓ AES-256 + PBKDF2-SHA512
  • ✓ QR & PDF Export
  • ✓ 3 devices
Buy
✨ NEW · SeedCrypt Recover
Business
199€
  • ✓ Unlimited seeds
  • ✓ AES-256 + PBKDF2-SHA512
  • ✓ QR & PDF Export
  • ✓ Unlimited devices
Buy
✨ NEW · SeedCrypt Recover
14-day money-back guarantee
Not satisfied? Full refund within 14 days, no questions asked. Contact [email protected] with your license key.
FAQ

Frequently asked questions

No. SeedCrypt works entirely offline. There is no network call, no telemetry, no analytics inside the app. Your data never leaves your device.
The password is never stored. If lost, the seed is irrecoverable — this is by design, and exactly what makes AES-256 secure. We recommend keeping a written password in a physically secure location separate from the encrypted file.
Yes. Encrypted files are fully interoperable between Windows and Android. A Family license allows 3 devices, Business is unlimited.
AES-256-GCM for authenticated encryption, with PBKDF2-SHA512 at 600,000 iterations for key derivation. A unique random salt and IV are generated for every encryption operation.
Yes, refund within 14 days, no questions asked. Contact [email protected] with your license key.
License keys are validated locally using HMAC-SHA256 with a key embedded in the app. No activation server, no internet required. Your license works forever, even without a network connection.

Ready to secure your seeds?

Free to start. No sign-up required. Works without an internet connection.

Windows
Windows 10 / 11 · x64
Android
Android 8+ · APK
macOS
Coming soon · macOS 12+
See licenses →