Barcode Generator

Generate barcodes in various formats
This free online barcode generator runs in your browser and is part of our Generators collection.

📊 Barcode Generator

Generate barcodes in various formats for products, inventory, and labels

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Barcode Formats:

  • CODE128: Most versatile - supports all ASCII characters
  • CODE39: Alphanumeric - commonly used in logistics
  • EAN13: Standard product barcodes (Europe) - requires 13 digits
  • EAN8: Compact version for small packages - requires 8 digits
  • UPC: Universal Product Code (North America) - requires 12 digits
  • ITF14: Shipping containers and logistics - requires 14 digits
  • MSI: Warehouse and inventory management
  • Pharmacode: Pharmaceutical packaging

💡 Tips:

  • EAN13, EAN8, UPC, and ITF14 require exact digit counts
  • CODE128 and CODE39 accept text and numbers
  • Print barcodes at high resolution for best scanning results
  • Test generated barcodes with a scanner before mass production
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Instant In-Browser Execution Runs locally in JavaScript without wait times or server delays.
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100% Privacy & Security Your inputs and files are never stored or logged on remote servers.
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Cross-Device Responsive Fully optimized for mobile smartphones, tablets, and desktop displays.
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100% Free Forever No subscription fees, no signups, and no software installations.

How to Use the Online Barcode Generator

1 Select Barcode Standard

Choose from Code 128 (general purpose/alphanumeric), EAN-13 (retail products), UPC-A (US retail), Code 39, ITF-14, or Pharmacode.

2 Input Value / Product Code

Type the numeric or alphanumeric sequence matching your barcode specification.

3 Customize Display & Dimensions

Adjust bar width, height, margin spacing, and toggle whether to display the human-readable text label underneath.

4 Export Barcode

Preview the barcode rendered in real-time on canvas, and download as PNG image or SVG vector graphic for printing.

Frequently Asked Questions

Common questions about using this free online barcode generator.

Which barcode format should I use for shipping and logistics? ▾
Code 128 is the universal industry standard for logistics, shipping containers, and inventory because it encodes all 128 ASCII characters with high data density.
How does EAN-13 and UPC-A checksum validation work? ▾
EAN-13 requires exactly 12 data digits plus 1 calculated modulo-10 check digit (total 13 digits). UPC-A requires 11 data digits plus 1 check digit. The generator automatically validates this checksum.
Can I scan these barcodes using a standard laser or 2D camera scanner? ▾
Yes. All generated barcodes strictly follow GS1 and ISO/IEC physical specification standards and are immediately readable by handheld barcode scanners and smartphone apps.
Is vector SVG output recommended for product packaging? ▾
Yes. Download the SVG format to scale the barcode to any physical size in packaging design software without pixelation or scanning failures.

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