Secure Your Digital Legacy
Protect your most important documents and ensure they reach your loved ones when it matters most
What Happens to Your Digital Life?
When something happens to you, your loved ones face an impossible challenge
Locked Out Forever
Bank accounts, insurance policies, investment portfolios - all locked behind passwords your family doesn't have
Lost Documents
Critical legal documents, property deeds, medical records scattered across devices and services
Family Chaos
Your loved ones spend months trying to piece together your digital life while grieving
Passdown Changes Everything
Securely share your important documents and passwords with trusted beneficiaries. They get access only when they need it, with complete privacy and military-grade encryption.
Your family can access what they need, when they need it
Everything is encrypted - only your beneficiaries can decrypt it
Peace of mind knowing your digital legacy is protected
Why Choose Passdown?
Built with security and simplicity in mind
End-to-End Encryption
Your documents are encrypted on your device before being sent to our servers. We never see your unencrypted data.
Trusted Beneficiaries
Designate family members or trusted individuals who can access your documents when needed.
Multilingual Support
Available in 7 languages to serve families around the world.
Rich Document Editor
Create beautifully formatted documents with our Markdown editor and live preview.
Access Control
Full audit trail of document access with email notifications for every action.
Military-Grade Security
AES-256-GCM encryption with PBKDF2 key derivation ensures maximum security.
Security You Can Trust
Your privacy and security are our top priorities
Two Levels of Security
Passdown uses two separate credentials: a standard login password (can be reset) for accessing your account, and a master key (cannot be changed or recovered) that encrypts your documents. Only the master key can decrypt your data.
Client-Side Encryption
All encryption happens in your browser. Your master key never leaves your device, and we never have access to your unencrypted documents.
Zero-Knowledge Architecture
We designed Passdown with a zero-knowledge approach. Even if our servers were compromised, your data would remain encrypted and unreadable.
Complete Audit Trail
Track every access to your documents with detailed logs including timestamps, IP addresses, and email notifications.
Military-Grade Encryption
Understanding how your data stays secure
graph TD
subgraph client["🖥️ Your Browser (Client-Side)"]
A[🔑 Your Master Key<br/>Never Leaves Device]
B[⚙️ Key Derivation<br/>Argon2id • 256-bit]
C[🔐 Document Encryption<br/>AES-256-GCM]
A -->|Derive Key| B
B -->|Encrypt| C
end
subgraph server["☁️ Our Servers (Server-Side)"]
D[📦 Encrypted Storage<br/>Unreadable Data Only]
end
C -.->|Upload Encrypted| D
style client fill:#dbeafe,stroke:#60a5fa,stroke-width:2.5px,color:#1e40af
style server fill:#fef3c7,stroke:#fbbf24,stroke-width:2.5px,color:#d97706
style A fill:#e0e7ff,stroke:#818cf8,stroke-width:2px,color:#3730a3
style B fill:#f3e8ff,stroke:#a78bfa,stroke-width:2px,color:#6d28d9
style C fill:#d1fae5,stroke:#34d399,stroke-width:2px,color:#047857
style D fill:#fed7aa,stroke:#fbbf24,stroke-width:2px,color:#d97706
🔒 Zero-Knowledge Architecture
All encryption happens in your browser using your master key - we never see your master key or unencrypted data. Your master key is NOT your login password and can never be recovered if lost.
Your Master Key
You create a master key that never leaves your device (separate from your login password)
Key Derivation
Argon2id transforms your master key into a 256-bit encryption key using quantum-resistant algorithms
Document Encryption
Your documents are encrypted using AES-256-GCM with unique keys for each document
Secure Storage
Only encrypted data is stored on our servers - we can never access your documents
Technical Details
Why This Is Extremely Secure
Zero-knowledge architecture: Your password never leaves your browser
Argon2id is memory-hard, making brute-force attacks exponentially more expensive
AES-256-GCM provides authenticated encryption with 256-bit keys
Each document uses a unique random IV, preventing pattern analysis
Even if our servers were compromised, your data remains encrypted and unreadable
Frequently Asked Questions
Everything you need to know about Passdown
What if your servers are compromised?
What if someone finds both the URL and password?
Is Passdown free?
What are the security best practices?
Can I use Passdown for business documents?
How do I know my beneficiaries can access my documents?
What happens to my data if Passdown shuts down?
Can I change beneficiaries or passwords later?
Simple, Transparent Pricing
Start free today, stay free forever
Free Forever
For all current and early users
- Up to 30 documents
- Unlimited beneficiaries
- End-to-end encryption
- Email notifications
- Access delay controls
- QR code generation
Our Commitment
Any user who registers now gets free access for life. While we may introduce paid tiers in the future with additional features, existing users will always keep their free account. This is our promise to early adopters.
Future Plans
We may introduce premium features like increased document limits, advanced sharing options, or priority support. But these will never affect users who join today - you'll always have access to the core features, free of charge.
Ready to Secure Your Legacy?
Join thousands of families protecting their digital inheritance
Get Started Now