Barcode Generator

Generate barcodes for inventory, products, and labels

Barcode Generator

Create custom linear barcodes for inventory tracking, retail packaging, or asset management. This browser-based tool generates high-contrast images suitable for testing scanners or printing casual labels.

Choosing the Right Format

  • Code 128 Most Flexible
    Best for internal use (inventory, shipping). Supports all ASCII characters (letters, numbers, symbols). High density.
  • UPC-A Retail (US)
    The standard for products sold in North America. Strictly 12 digits.
  • EAN-13 Retail (Global)
    The global standard for books and products. 13 digits.

Printing & Scanning Tips

  • 🖨️
    Resolution Matters: Avoid resizing the image after download. Blurry edges make barcodes unreadable. Print at 100% scale.
  • 📏
    Quiet Zones: Ensure there is at least 5-6mm of empty white space on both the left and right sides of the bars.
  • ⚠️
    Color Contrast: Scanners read red light. Never print red bars on a white background (they disappear to the scanner). Use black on white.

Frequently Asked Questions

Why won't my scanner read the screen? ▼
Traditional laser scanners cannot read from screens because of the glass reflection and lack of contrast. You need a modern CCD or "2D Imager" scanner to read digital barcodes.
Can I assume this verifies my UPC number? ▼
No. This tool generates the image corresponding to the numbers you type. It does not check if the product number is officially registered to your company with GS1.