Barcode Generator
Create professional barcodes instantly. Support for Code 128, EAN-13, UPC-A, Code 39, and more.
Free, instant barcode generation
Create professional barcodes instantly. Support for Code 128, EAN-13, UPC-A, Code 39, and more.
Free, instant barcode generation
A barcode generator creates machine-readable visual representations of data using parallel lines of varying widths and spacings. These barcodes can be scanned by barcode readers, smartphones, and point-of-sale systems to quickly retrieve encoded information such as product numbers, inventory codes, and tracking IDs. Our free online tool lets you create professional barcodes instantly without any software installation.
Code 128 is the most versatile format, supporting all 128 ASCII characters, making it ideal for shipping labels and general-purpose encoding. EAN-13 is the international standard for retail product identification used worldwide. UPC-A is the 12-digit barcode standard used primarily in the United States and Canada for retail products. Code 39 supports alphanumeric characters and is widely used in automotive, defense, and healthcare industries. ITF (Interleaved 2 of 5) encodes numeric pairs efficiently for warehouse and distribution use. Codabar is commonly found in libraries, blood banks, and overnight delivery services.
Select your barcode type from the dropdown menu based on your use case. Enter the data you want to encode in the text field - the tool validates your input in real-time to ensure compatibility with the selected format. Customize the appearance with bar height, width scale, quiet zones, and colors. Preview your barcode instantly and download it as PNG, JPG, or WebP. You can also copy the barcode directly to your clipboard for quick use in documents and designs.
Barcodes are essential for retail product labeling with EAN-13 or UPC-A codes, warehouse inventory management using Code 128 or ITF formats, shipping and logistics tracking, library book management with Codabar, healthcare specimen tracking, event ticketing, asset management, and document tracking systems. They improve efficiency by eliminating manual data entry errors and enabling instant data capture through scanning.
Ensure adequate quiet zones (white space) around your barcode for reliable scanning. Use high contrast between bar and background colors - black bars on white background provides the best scan reliability. Set an appropriate bar width scale for your print size; larger prints can use smaller scales while labels need higher scales. Always test your generated barcodes with a scanner before mass printing. For retail products, verify that your EAN-13 or UPC-A codes are properly registered with GS1.