Zero-knowledge encrypted vault for cards, accounts, credentials, and personal documents. Share securely with real-time access control that you can revoke at any moment.
Everything is encrypted on your device before it leaves. Our servers only store encrypted blobs that are mathematically impossible to decrypt without your password.
A complete system for managing and sharing your most sensitive financial data.
Store credit cards, bank accounts, logins, personal documents, and rewards programs — all encrypted with military-grade security.
Share a card with someone and stay in control. Every view requires your real-time approval via push notification or email. Revoke access instantly — the data is gone.
Recipients see your data temporarily — it's never stored on their device. No screenshots policy. Memory is zeroed when they close the page.
Native macOS app, blazing-fast terminal interface, and secure web viewer. Your vault syncs across all of them, encrypted end-to-end.
Master password protects your vault. Optional PIN or Touch ID adds a second layer for sensitive fields. Defense in depth.
Domain-based security policies, Duo Push integration, mandatory 2FA, and SSO support. Built for teams that handle sensitive financial data.
Most vault products store a copy of your secrets and call it sharing. We believe you should never lose control of your data.
| RexVault | Traditional Vaults | |
|---|---|---|
| End-to-end encryption | ✓ | ✓ |
| Zero-knowledge architecture | ✓ | ✓ |
| Real-time share access control | ✓ | ✗ |
| Ephemeral viewing (no persistent copy) | ✓ | ✗ |
| Owner-approved share access | ✓ | ✗ |
| Instant share revocation | ✓ | ✗ |
| Works without an account (local vault) | ✓ | ✗ |
| No subscription for basic use | ✓ | ✗ |
| Open source | ✓ | Partial |
Select a card and enter the recipient's email. RexVault encrypts it using a unique key derived from a cryptographic key exchange — only the recipient can decrypt it.
The recipient receives an email inviting them to view the shared card. If they don't have RexVault, they can sign up and view it instantly in their browser.
Every time the recipient wants to see the card, you get a notification. Approve or deny with one tap via Duo Push, or click a link in your email. You're always in control.
Press one button and the share is gone. The encrypted data is deleted from the server. The recipient gets nothing — not even an error message, just silence.
RexVault uses the same proven encryption standards trusted by leading security products like Bitwarden — including AES-256-GCM for data encryption, Argon2id for key derivation, and X25519 Diffie-Hellman for secure key exchange. Our architecture is open source and auditable. We don't invent our own cryptography — we use the industry standards that security researchers have vetted for decades.
Free to use. No credit card required. Your vault, your rules.