About QR-Code
The QR Code (Quick Response, ISO/IEC 18004) is the best-known 2D code: up to 7,089 digits or 4,296 alphanumeric characters, four error correction levels (L/M/Q/H restoring up to 30 %) and readable with any smartphone camera. Used from marketing to payments to industry.
Data format
Any text (UTF-8), URLs, numbers. Error correction selectable.
Example: https://qrcodeerstellung.de
2D Barcodes
Two-dimensional codes store data as a matrix or stacked rows and achieve a far higher data density than linear barcodes – including error correction. QR Code, Data Matrix, Aztec and PDF417 are the key members.
Frequently asked questions about QR-Code
Is the QR-Code generator really free?
Yes. You can create as many QR-Code barcodes as you like and download them as PNG or SVG – no registration, no watermark, commercial use included.
What resolution does the QR-Code barcode have?
PNG files are generated with adjustable module width and up to 600 DPI. For print we recommend the lossless SVG vector format which scales without any quality loss.
Is my data stored?
No. The barcode content is only processed to render the image and is not stored. We only count anonymously how often a barcode type is used.
Can I embed QR-Code barcodes in my website or software?
Yes. Every barcode has a stable image URL (see “Embed HTML”) which you can use in websites, label software or spreadsheets.