Barcode Generator
Generate Code 128, EAN-13, UPC, and more from any text
Files are deleted automatically after 1 hour
About Barcode Generator
Barcodes are machine-readable optical patterns that encode numerical or alphanumeric data for rapid scanning by laser or camera-based readers. They are essential in retail, logistics, inventory management, healthcare, libraries, and many other industries. PDFSpot's barcode generator creates standard 1D and 2D barcodes in multiple formats, downloadable as PNG images for printing and labelling. We support the most widely used barcode formats. Code 128 is the most versatile linear barcode for general use — it encodes any ASCII character and is used in shipping, manufacturing, and retail. EAN-13 is the global standard for retail product identification (the barcode on every product in a supermarket). EAN-8 is a shorter version for small product packaging. UPC-A is the North American retail standard. Code 39 is a simple alphanumeric barcode used in industrial and healthcare settings. Generated barcodes are high-resolution PNG images ready for printing. The size is configurable so you can produce barcodes that meet the minimum scannable size requirements for your scanner hardware. Most industrial barners require a minimum height of 5mm and quiet zone (white space margin) on both sides. For product packaging, labels, and shipping use, always validate barcodes against your scanner before full-scale printing. Check-digit validation is built into formats that require it (EAN-13, EAN-8, UPC-A) — the generator automatically calculates the correct check digit. Enter the data digits and the generator handles the rest. All barcode generation happens in your browser — no data is sent to our servers.
How to use Barcode Generator
Select the barcode format
Select the barcode format from the dropdown (Code 128 for general use, EAN-13 for retail products, Code 39 for industrial use, etc.).
Enter the data to encode
Enter the data to encode. For EAN-13, enter 12 digits (the 13th check digit is calculated automatically). For Code 128 and Code 39, enter your alphanumeric string.
Click 'Generate Barcode'
Click 'Generate Barcode'. A preview appears immediately. Adjust the size if needed.
Download the PNG image
Download the PNG image and test it with a barcode scanner before using it in production.