What Is a QR Code?

A QR code (Quick Response code) is a type of two-dimensional barcode that stores information such as URLs, text, phone numbers, or payment details and can be scanned using a smartphone camera.

What Does QR Code Stand For?

QR stands for Quick Response. It was designed to be read quickly compared to traditional barcodes and can store significantly more data.

How Does a QR Code Work?

QR codes use a grid of black and white squares called modules. When scanned, the camera interprets these patterns and converts them into readable information.

• Data is encoded into a square grid
• Error correction allows scanning even if part is damaged
• Works instantly with modern smartphone cameras

History of QR Codes

QR codes were invented in 1994 by Denso Wave, a Japanese company, to track automotive parts. Today, they are widely used across industries worldwide.

Common Uses of QR Codes

• Website links and landing pages
• Digital business cards
• Restaurant menus
• Payments and UPI transactions
• Product packaging and labels
• Event tickets and check-ins

Types of QR Codes

QR codes can be broadly classified into two categories:

• Static QR Codes – Data cannot be changed once generated
• Dynamic QR Codes – Destination content can be updated anytime

Learn more here: Static vs Dynamic QR Codes

Are QR Codes Safe?

QR codes themselves are safe, but users should be cautious about scanning unknown codes. Always verify the source before opening links.

Create Your Own QR Code

You can generate QR codes instantly using our free tool.

Who Invented QR Codes?

QR codes were invented by Denso Wave, a subsidiary of Toyota, in 1994. The technology was released for free public use.

Why Are QR Codes So Popular Today?

QR codes gained popularity due to smartphones, contactless payments, and easy access to digital content without typing URLs.