cardlab.
Connecting

A SMALL TOOL FOR BIG IDEAS

Your next test
starts here.

Turn a BIN into a batch of card test data.
Set the details. Generate. Get back to building.

01 THE INPUT

Make it your own.

A few details, endless test cases.

REQUIRED
VISA

A 6–8 digit BIN, or an extended prefix up to 10 digits.

Visa · 424242 · Stripe Dev

Expiry date optional
optional

3 digits for Visa.

max 1,000
More options

Use the default length for the detected network.

Make something good. Ctrl ↵ to generate

Synthetic data. Stays in this tab.
02 THE OUTPUT

Your next batch.

Good test data is one click away.

0 cards

A fresh batch awaits.

Pick your BIN, fine-tune the details,
and let’s make some test data.

Luhn checkedUnique per batch
Ready for your development sandbox.NO HISTORY SAVED
LESS SETUP. MORE BUILDING.

Simple by design.

01

Start with a BIN.

Choose a saved preset, enter a 6–8 digit BIN, or use an extended card prefix.

02

Set your variables.

Fix the expiry and CVV for a specific case, or leave them random.

03

Take it from here.

Copy your batch or export to TXT, CSV, or JSON. Your workflow, your call.