Credit Card Vault

Store your credit and debit cards in PassCryp's encrypted vault. Numbers, CVVs, expiry dates, and billing addresses encrypt with AES-256-GCM, copy to clipboard with a 30-second auto-clear, and autofill at checkout via the browser extension.

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End-to-end encrypted card data

Card number, CVV, expiry, billing address — all encrypted with AES-256-GCM client-side.

Auto-clear clipboard

Copy your CVV to the clipboard. We wipe it automatically after 30 seconds so it doesn't sit there.

Autofill at checkout

The browser extension fills card number, CVV, and expiry on detected checkout forms with one click.

Multiple cards, easy switching

Personal, business, virtual aliases — store every card and pick the right one at checkout.

Receipts and notes per card

Attach billing notes, dispute records, or virtual-card metadata directly to the card item.

Why store cards in a password manager

Storing cards in your browser (Chrome, Safari) ties them to one ecosystem and offers thinner encryption guarantees than a dedicated zero-knowledge manager. Storing them on individual merchant sites (Amazon, Stripe-saved cards) scatters the same number across dozens of databases — each a potential breach surface.

A password manager centralizes the card. One encrypted copy in your vault, autofill on demand, no card-on-file at every merchant. When a card is stolen or replaced, you update one item and you're done — no email-the-merchant scavenger hunt.

How auto-clear clipboard works

When you click 'Copy' on a card field (CVV, number, billing address), the value lands in your OS clipboard. PassCryp starts a 30-second timer; when it fires, the extension overwrites the clipboard with an empty value (or the value before the copy, if accessible).

This protects against the long tail of clipboard managers, malware, and accidental paste-in-the-wrong-window scenarios. It's a small UX tax (30 seconds isn't long, but it's there) for a real defense.

Virtual cards and aliases

If you use a virtual card service (Privacy.com, Capital One Eno, Revolut Disposable), store each virtual card as its own item. Tag by merchant, by purpose, or by expiry. Pair with PassCryp's expiry alerts to rotate aliases before they go stale.

For high-risk merchants (sketchy storefronts, unfamiliar services), use a virtual card with a low limit. Store the alias in PassCryp with a note on what merchant it's tied to. Revoke the alias upstream when done.

Frequently asked questions

Is the credit card vault free?

Yes — included on the Free tier. Same encryption as paid plans.

How is card data encrypted?

AES-256-GCM client-side with Argon2id key derivation. Same encryption stack as passwords.

Does PassCryp send my card data anywhere?

No. Card data encrypts in your browser before sync. We see ciphertext only; merchants see card data only when you autofill at their checkout.

Will the extension fill on every checkout?

On most standard checkout forms (Stripe, Shopify, WooCommerce, Square). Some custom checkouts may not be auto-detected; you can copy fields manually.

Does auto-clear clipboard really work?

Yes — it overwrites the clipboard 30 seconds after copy. Some clipboard managers cache history; if you use one, disable history for sensitive copies or expect it to capture briefly.

Can I share a card with my family?

Yes — store the card in your shared family vault. Each member can autofill at their own checkout.

Ready to take control of your secrets?

Start a free zero-knowledge vault in under 60 seconds.

Start your free vault