Leave them a gift, not a mystery

When you can't be there,
your loved ones still will be.

Eternal Sentinel keeps your passwords, documents, and final messages safe — and delivers them to the people you trust, exactly when they need them.

No credit card required · Free plan available · Cancel anytime

How it works

Three simple steps. Set it up once, and you're protected for life.

01

Fill your vault

Store passwords, documents, financial accounts, and personal messages — all encrypted with AES-256 before leaving your device.

02

Check in regularly

Get a gentle reminder by email or SMS. Click to confirm you're okay. If you stop responding, the process begins.

03

Your people get what they need

Designated trustees receive secure access to your vault — the accounts, instructions, and messages you left for them.

Military-Grade Cryptography

Your Legacy, Mathematically Sealed

We never store your master password or have access to your keys. Everything is encrypted directly in your browser before ever reaching our cloud.

Zero-Knowledge Architecture

Your data is encrypted locally using keys derived on your own device. Even under subpoena, we cannot decrypt or read your vault contents.

AES-256-GCM Encryption

The global gold standard. Each secret is locked with a unique 96-bit nonce and validated with a 128-bit authentication tag to prevent tampering.

PBKDF2 Key Derivation

We perform 100,000 iterations of SHA-256 with a cryptographically secure random salt to derive keys that render brute-force attacks mathematically impossible.

Want to see our zero-knowledge mathematics and cryptographic envelope layout?

Simple, honest pricing

Start free. Upgrade when you're ready.

Free

$0/ forever
  • 1 trusted contact
  • Monthly check-ins
  • Encrypted vault
  • Email notifications
  • Unlimited vault items
Most Popular

Premium

$9/ month
  • Unlimited trusted contacts
  • Weekly or daily check-ins
  • SMS alerts
  • Scheduled future messages
  • Priority support
  • Everything in Free

Complete your legacy plan

Eternal Sentinel handles the digital side. A legal will handles assets and guardianship. Together, they give your family everything they need. Many US states — including Maryland — now legally recognize online wills.

These are independent services. We are not affiliated with or compensated by them.

Common questions

We get it — this is important stuff. Here are the answers.

The greatest gift is peace of mind.

Take 10 minutes today. Set up your vault, add a trustee, and know that the people you love will be taken care of.