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A QR code (Quick Response) is a two-dimensional matrix barcode encoding data in a grid of squares readable by any modern smartphone in under a second, no app required.
Invented by Denso Wave to track car parts. Today used by billions across payments, menus, marketing, healthcare, and events.
That's 200× more than a 1D barcode enough for a full URL, vCard, WiFi credentials, or a short message.
Reed-Solomon error correction lets your code scan reliably even when dirty, creased, or partially covered by a logo.
Every modern smartphone decodes QR codes natively via the default camera frictionless for every user, everywhere.
Your phone silently runs a four-stage decoding pipeline invisible, instant, and extraordinarily reliable.
The camera finds the three corner squares to locate and frame the QR code in the viewfinder.
Perspective and angle are corrected using alignment patterns reads correctly at any tilt.
Each black or white cell is read as 1 or 0 thousands of bits decoded in milliseconds.
Reed-Solomon corrects damage up to 30%. The payload instantly opens a URL, saves a contact, or connects to WiFi.
"Generated 50 QR codes for our hotel room doors in under 20 minutes. No fuss, no signup, just paste and download. The fastest tool I've used by a long stretch."
"Used this for contactless restaurant menus and kept using it ever since. Every code scans perfectly, even on glossy laminated card."
"The elegant dark design is a pleasure to use. The educational sections genuinely taught me things I didn't know about QR codes."
Enjoyed using QRcodes? Found a bug? Have a suggestion? We genuinely read every message and use your feedback to make the tool better for everyone worldwide.
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