Generate barcodes in multiple formats instantly. Download as PNG or SVG.
A barcode is a machine-readable representation of data using parallel lines of varying widths and spacings, or a two-dimensional pattern of squares. Barcodes allow information to be read quickly and accurately by optical scanners, eliminating the need for manual data entry. They were invented in the 1950s and became widespread in retail in the 1970s when they were first used at supermarket checkouts. Today barcodes are everywhere — from product packaging and shipping labels to hospital wristbands and library books.
Barcodes fall into two main categories: linear (1D) and matrix (2D). Linear barcodes like Code 128, EAN-13, and UPC-A encode data in a series of parallel lines. Matrix barcodes like QR codes and Data Matrix encode data in a two-dimensional grid of squares or dots, allowing much more data to be stored in a smaller space. This generator focuses on linear barcodes — the traditional format used in retail, logistics, and inventory management.
A traditional barcode is one-dimensional — it encodes data in a series of vertical lines read horizontally. A QR code is two-dimensional — it encodes data in a grid of squares that can be read in any direction. QR codes can store significantly more data (thousands of characters vs. dozens) and can be read by smartphone cameras, while traditional barcodes typically require a dedicated laser or optical scanner.
For general purposes such as inventory management or internal tracking, Code 128 is the best choice — it supports all ASCII characters and is widely compatible. For retail products sold globally, use EAN-13. For US retail, use UPC-A. For shipping cartons, use ITF-14. For small products with limited space, use EAN-8.
The barcode formats themselves are open standards — you can use them freely. However, if you want your product to be sold in retail stores with a scannable barcode linked to a product database, you need to register for a GS1 company prefix and obtain official EAN/UPC numbers from GS1, the global standards organization. Self-generated barcodes are perfectly fine for internal use, inventory tracking, and non-retail applications.
SVG is recommended for printing because it is a vector format that scales to any size without losing quality. PNG is better for digital use — websites, documents, and email. For high-resolution printing on labels or packaging, always use SVG or export at a very high resolution.