What barcode format should I use?

Use Code128 for general-purpose labeling (shipping, inventory, asset tags). Use EAN-13 for retail products sold internationally. Use UPC-A for products sold in the US and Canada. Use EAN-8 for small packages where a full EAN-13 won't fit.

Do I need to calculate the check digit myself?

No, the generator calculates the check digit automatically. For EAN-13, enter the first 12 digits and the 13th check digit is computed. For UPC-A, enter 11 digits and the 12th is generated. You can also enter all digits and the tool will verify the check digit is correct.

Should I download PNG or SVG?

Download SVG if you're printing the barcode on product packaging, shipping labels, or any physical material — it scales to any size without losing sharpness. PNG is fine for digital use, screen display, or standard document printing at the default size.

Can I customize the barcode colors?

Yes, you can change the bar color and background color. However, for reliable scanning, use black bars on a white background. Colored barcodes may not scan correctly with some laser scanners.

Why is my barcode not scanning?

Common causes: insufficient quiet zone (blank space on either side), too narrow bar width for the print size, or low print resolution. Try downloading as SVG for print, ensure the quiet zone is at least 10x the narrow bar width, and print at 300 DPI or higher.

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Barcode Generator

A barcode generator converts text or numbers into scannable barcode images in formats like Code128, EAN-13, and UPC-A. It calculates check digits automatically and outputs PNG for digital use or SVG for print production.

100% FreeNo Signup RequiredBrowser-BasedPrivate & Secure

What is Barcode Generator?

A barcode generator is a tool that converts text or numeric data into scannable barcode images using symbologies like Code128, EAN-13, and UPC-A, with automatic check digit calculation and downloadable output in PNG and SVG formats.

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Start Using Barcode Generator Today

From retail product labels to warehouse inventory tags, barcodes are the universal language of physical tracking. This generator handles the tricky parts — check digit calculation, format validation, and print-ready SVG output — so you can produce scannable barcodes in seconds. Pick your format, enter your data, and download a barcode that works on the first scan.

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