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Free Online Barcode Generator

Create and download barcodes for products, inventory, shipping labels, retail systems, and internal tracking. Enter one value or generate multiple barcodes in a single batch.

  • Free to use
  • No account required
  • Batch generation
  • Instant preview

1. Enter barcode data

0 entries · Blank lines ignored · Duplicate values detected

2. Choose barcode settings

Changing the selection opens the matching dedicated generator.

Barcode preview

Download settings

Create print-ready barcodes in seconds

Generate clear barcode images for product packaging, warehouse inventory, shipping labels, retail items, documents, and internal asset tracking. Choose a supported symbology, customize the output, preview the result, and download the barcode image without creating an account.

This tool creates the barcode image from the value you provide. It does not issue or register official product identification numbers.

Choose the correct symbology

Select the barcode standard required by your retailer, inventory platform, warehouse, carrier, or label specification.

Generate barcodes in bulk

Enter multiple values on separate lines to create several barcodes in one workflow instead of generating them individually.

Preview before downloading

Review encoded values, readable text, spacing, and output settings before using the barcode in a document or label.

Download a reusable image

Export the generated barcode in an available image format for use in labels, documents, packaging, and inventory workflows.

How to generate a barcode online

  1. Enter the value you want to encode.
  2. Add additional values on separate lines for batch generation.
  3. Select the appropriate barcode type and output settings.
  4. Generate and review the barcode preview.
  5. Choose the image format and download the result.

Which barcode type should you choose?

The correct barcode format depends on the system, retailer, carrier, or organization that will scan it. Confirm the required symbology before printing large quantities.

Retail barcodes

Logistics and packaging

Industrial and inventory

Supplemental codes

Specialized formats

Barcode generator FAQs

Choose the symbology required by the retailer, warehouse, carrier, or internal system that will scan the code. If you are unsure, confirm the required format before printing labels at scale.

Yes. Enter one value per line in the input area and keep batch mode enabled. Blank lines are ignored when multiple lines are treated as separate values.

Yes. After generation you can download JPEG or PNG images, export selected items, or bundle multiple barcodes into a ZIP or PDF when those export options are selected.

No account is required. Generation and download run in your browser on ConversionTab.

CODE128 supports flexible alphanumeric data for logistics and internal tracking. EAN-13 is a 13-digit retail barcode common outside North America. UPC is a 12-digit retail barcode widely used in the United States and Canada.

You can use the image on labels, documents, and packaging workflows, but the value you enter must match the identification scheme expected by your retailer or fulfillment partner. This tool does not register official product numbers.

Quiet zones are blank margins around a barcode that help scanners detect where the code begins and ends. Use the margin setting to preserve readable spacing before printing.

Many scanners can read barcodes displayed on a screen, but results vary by symbology, contrast, screen brightness, and scanner hardware. Test with your target device before relying on on-screen scanning.