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Create 1D barcodes (Code128/EAN/UPC). Use for products; for 2D codes use qr-generator. Input: text/numbers. Returns PNG/SVG. 100% client-side.
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Generates barcodes in Code 128, EAN-13, UPC-A, QR Code, Data Matrix, and PDF417 formats. Customize size, color, and text display options. Download as SVG or PNG with batch generation support.
Barcodes bridge physical products with digital systems. This tool provides instant barcode generation without external dependencies or paid software.
This tool is part of the DevStackIO platform — a collection of free online developer tools from DevStackIO. Browse more free developer resources on DevStackIO.
E-commerce developers, inventory managers, product designers, and anyone needing to generate barcodes for labels, packaging, or tracking systems.
Select the barcode symbology from the dropdown (Code 128, EAN-13, UPC-A, QR Code, etc.)
Enter the data to encode — numeric only for EAN/UPC, alphanumeric for Code 128 and QR
Customize appearance: bar color, background color, text label, width, and height
Click Generate and preview the barcode; ensure it scans correctly with a barcode scanner app
Download as SVG (vector) for print or PNG (raster) for web
Use batch mode to generate multiple barcodes at once with sequential data
Input: Code 128, Data "ABC-12345", Black bars, White background -> Output: SVG barcode image that scans as "ABC-12345"Input: EAN-13, Data "590123456789" -> Output: EAN-13 barcode with checksum digit, ready for retail packagingWhat is the difference between EAN-13 and UPC-A?
EAN-13 is used globally with 13 digits; UPC-A is the North American standard with 12 digits. They are interchangeable with a leading zero.
Can I generate QR codes instead of linear barcodes?
Yes, select QR Code from the symbology dropdown for matrix-style 2D barcodes.
What is the quiet zone?
The blank margin around the barcode required for reliable scanning. Minimum 10x the narrow bar width on each side.
Are the barcodes compliant with GS1 standards?
Yes, the generated barcodes follow GS1 specifications for retail and logistics use.
Authoritative specifications, standards, and in-depth reading for Barcode Generator.
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