Which barcode symbology should I use for retail products?
Use EAN-13 for international retail products outside North America, or UPC-A for products sold in the US and Canada.
Tool Categories
Barcode Generator Online - Code 128, EAN & UPC | 1ClickTools
Generate high-resolution 1D linear barcodes (Code 128, EAN-13, UPC-A, Code 39, ITF-14). Export print-ready PNG and SVG vector barcodes 100% free.
About This Tool
Linear 1D barcodes are the global standard for retail point-of-sale (POS) checkout systems, warehouse inventory tracking, logistics shipping labels, and library card indexing. Generating accurate, scan-compliant barcodes ensures laser barcode scanners read product numbers without errors. Our browser-native Barcode Generator supports all major global barcode formats: Code 128 (universal alphanumeric), EAN-13 (international retail products), UPC-A (North American retail), Code 39 (industrial/defense), ITF-14 (shipping cartons), and MSI/Pharmacode. You can adjust bar height, line width, text display options, and export high-DPI PNG or scalable vector SVG files. Because barcode rendering runs entirely inside local browser RAM using client-side JavaScript (`JsBarcode`), your SKU numbers, serial tags, and product inventories remain 100% private.
Frequently Asked Questions
Which barcode format is best for general inventory and asset tracking?
Code 128 is the best choice for internal inventory tags because it supports letters, numbers, and symbols in a compact format.
Is my SKU or product number saved on a web server?
No. 1ClickTools generates barcodes 100% locally in your browser memory.
Does it calculate the EAN-13 / UPC-A checksum digit automatically?
Yes! If you enter 12 digits for EAN-13, the generator calculates the 13th modulo-10 check digit automatically.
Can I download vector SVG barcodes for product packaging prints?
Yes! SVG vector export ensures razor-sharp barcode line printing at any DPI scale.
Works with hardware USB handheld barcode scanners?
Yes! All generated 1D barcodes scan instantly with physical laser and CCD barcode scanners.
Can I hide the text numbers below the barcode lines?
Yes, toggle 'Display Text' off if you only want the visual barcode lines.
Is there a limit on how many barcodes I can generate?
No, generate unlimited product barcodes for free.
Is any software installation required?
No, works directly inside modern web browsers.
Is 1ClickTools Barcode Generator free?
Yes, 100% free with no watermarks.