Free tool that decodes any QR code and checks its destination against threat-intelligence data for phishing and malware — before you visit it. Upload a photo or scan live with your camera. No app, no signup, no limit.
Luhnly generates fake credit card numbers that pass the Luhn checksum — the same formula real issuers use — for Visa, Mastercard, Amex, and Discover.
Built for developers and QA engineers testing checkout flows without touching a live gateway. Runs entirely in your browser — no signup, nothing stored.
Includes free testing guides for Stripe, PayPal, Square, Braintree, and Authorize.net, since every processor handles test cards differently.
Free, no account wall.
