QR Code Generator
Generate QR codes for URLs, text, WiFi, and more.
URLs, plain text, email addresses, phone numbers — anything up to 2,000 characters.
What Is a QR Code?
A QR code (Quick Response code) is a two-dimensional barcode that stores data in a matrix of black and white squares. Invented in 1994 by Denso Wave for tracking automotive parts, QR codes have become ubiquitous — from restaurant menus and event tickets to payment systems and product packaging. Any smartphone camera can scan a QR code to instantly open a URL, display text, or trigger an action.
How QR Codes Work
QR codes use Reed-Solomon error correction to remain readable even when partially damaged or obscured. The data is encoded in modules (the small squares) arranged in a specific pattern that includes finder patterns (the large squares in three corners), alignment patterns, timing patterns, and the encoded data area. QR codes can store up to 7,089 numeric characters or 4,296 alphanumeric characters, though practical limits depend on the error correction level chosen.
Common Use Cases
The most popular use of QR codes is encoding URLs — a quick scan takes the user directly to a website without typing. Other uses include sharing WiFi credentials (the WIFI: protocol), encoding vCard contact information, creating calendar events, encoding cryptocurrency addresses for payments, and embedding plain text messages. Marketing teams use QR codes on print materials to bridge the gap between physical and digital media.
Generating QR Codes
This tool generates QR codes instantly from any text input. Simply type or paste your content — a URL, message, WiFi credentials, or any text — and click Generate. The QR code renders as a downloadable image that you can save, print, or embed in documents and presentations. The tool supports content up to 2,000 characters, which covers the vast majority of practical use cases.