Barcode Generator
Create 1D barcodes instantly with format switching, style controls, and PNG/SVG downloads.
- Select a barcode type (CODE128 for flexible text, EAN13 and UPC-A for product codes).
- Enter text or numbers in the content field.
- Adjust style options like bar width, height, margin, and colors.
- Click "Generate Barcode" and download as PNG or SVG.
Tip:EAN13 needs 12 digits and UPC-A needs 11 digits. The final check digit is calculated automatically.
When would you use this?
- When you need a printable barcode quickly for products, inventory, logistics, or event labels.
- When you want to test which barcode format matches your scanner or downstream system.
- When you need to adjust barcode size, colors, and label text before placing it into packaging or documents.
How should I choose between CODE128, EAN13, and UPC-A?
Use CODE128 when the content is more flexible and may include letters, numbers, or symbols. Use EAN13 or UPC-A for retail product identifiers, depending on the format your market and existing system require.
Why does my content fail to generate a barcode?
The most common reason is that the content does not satisfy the selected format. For example, EAN13 expects 12 digits and UPC-A expects 11 digits before the check digit is added.
What is the difference between downloading PNG and SVG?
PNG is convenient for presentations, documents, and quick sharing. SVG is better for printing and later design edits because it stays sharp when scaled.
The barcode looks fine. Why can my scanner still not read it?
Common causes include using the wrong format, making the barcode too small, leaving too little quiet zone around it, or using colors with weak contrast. Test with the real scanner before finalizing output.
Can I use this for real shipping or retail barcodes?
You can use it to generate and test barcodes, but before production you should still confirm that the encoded value, barcode standard, print size, and scanner requirements all match your real workflow.
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