Easily generate and download barcodes and QR codes
Enter text or URL to generate a barcode or QR code
QR (Quick Response) code is a 2D barcode that can be quickly read with a smartphone camera. It can store URLs, text, contact information, and more.
Barcode is a 1D code used for product identification, inventory management, etc. Supports various formats like CODE128, EAN13, UPC.
Share URLs, business cards, product labels, event tickets, Wi-Fi passwords, inventory management, and many more applications.
A barcode is a one-dimensional code that stores data only as horizontal lines and is mainly used for product identification. A QR code is a two-dimensional code that stores data both horizontally and vertically, allowing it to hold much more information. QR codes can store various types of data such as URLs, text, and contacts, making their range of applications far wider.
A QR code can store up to 4,296 alphanumeric characters or 2,953 bytes of binary data. Unicode characters such as Korean can store fewer characters. In contrast, barcodes (CODE128) can store about 80 characters, which is more limited compared to QR codes.
A resolution of 300 DPI or higher is recommended for general printed materials. QR codes should be printed at a minimum size of 2cm×2cm to scan well. For barcodes, if the bar width is too thin the scanner may not be able to read it, so printing at a sufficient size is important.
QR codes have an error correction feature, allowing data to be read even if part of the code is damaged. This property can be used to create custom QR codes with a logo inserted in the center or with colors changed. However, you must always test scannability when creating a custom design.
Barcodes and QR codes are essential tools in modern business. Create them easily with this free online generator and use them for various purposes.
QR codes can be used on business cards, menus, product packaging, and event posters. Converting website URLs to QR codes makes them easily accessible to customers, and creating QR codes for Wi-Fi passwords offers convenient access for guests. They can be effectively applied to various business scenarios including payments, coupons, and memberships.
CODE128 is a universal format supporting both letters and numbers, ideal for logistics and inventory management. EAN13 is a 13-digit number-based format used for international standard product barcodes. UPC is a 12-digit barcode primarily used for retail products in North America. Choosing the right format for your purpose maximizes scanner compatibility.