Credit Card Checker

by Ramal Jayaratne · toolcheckers.com · Tools

Established publisherManifest V3 Free

View in Chrome Web Store Data as of 21 Oct 2026

Securely validate credit card numbers using the Luhn algorithm and identify card issuers.

Users

+5 in 30 days

Rating

0.0 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#166K

#139K among extensions

Version

1.0

updated 19 Mar 2026

Users

monthly, 7 months

Latest, 21 Oct 2026: 17 usersMove the mouse over the chart for any month

Ratings count

monthly, 7 months

Latest, 21 Oct 2026: 0 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About Credit Card Checker

Credit Card Checker 💳 ✅ Tired of wondering if a card number is valid or which network it belongs to? Credit Card Checker is your sleek, secure, and instant solution for validating credit card numbers directly from your browser. Why install Credit Card Checker? Instant Validation ⚡: Automatically checks any card number against the industry-standard Luhn algorithm to ensure its mathematical validity. Smart Issuer Detection 🔍: Instantly identifies the card network (Visa, Mastercard, Amex, Discover, JCB, and more) as you type. Industry Insights 🏦: Automatically reveals the Major Industry Identifier (MII) so you know exactly which sector issued the card. Privacy First 🔒: Your security is our priority. We never store, transmit, or share your card data. All checks are processed locally and anonymously. Beautiful Design ✨: Enjoy a premium, modern interface with smooth animations and clear status indicators.