There are three main types of barcodes: 1D, 2D, and 3D. Each type has its own set of symbologies, leaving you lots of options when choosing the right type of barcode for your business1.
1D barcodes systematically represent data by varying the widths and spacings of parallel lines. These include some of the most traditional and well-recognized barcode types, such as the UPC and EAN codes2.
2D barcodes systematically represent data by varying the widths and spacings of parallel lines in two dimensions. These include QR codes and Data Matrix codes1.
3D barcodes systematically represent data by varying the heights, depths, and widths of parallel lines in three dimensions. These include MaxiCode1.