Free Barcode Generator for Amazon Sellers
Create UPC-A, EAN-13, and Code 128 barcodes for your Amazon FBA products in seconds. Free, no signup, instantly downloadable as PNG or SVG.
Generate Your Amazon Barcode — FreeWhy Amazon Sellers Need the Right Barcodes
Every product shipped to an Amazon fulfillment center must carry a scannable barcode — no exceptions. Amazon accepts manufacturer barcodes (UPC, EAN, ISBN) or its own FNSKU labels. If your product does not already carry a GS1-registered barcode, you must generate one before creating your listing. Using the wrong format, a low-resolution image, or missing quiet-zone margins (6.25 mm on sides, 3.1 mm top/bottom) can cause your shipment to be rejected or delayed at the warehouse. Our free barcode generator outputs print-ready PNG and SVG files at the correct resolution, with proper margins, so your labels pass Amazon's scanning requirements every time.
How to Generate Amazon FBA Barcodes
- 1
Select UPC-A (for US/Canada retail) or EAN-13 (for international listings) from the format dropdown.
- 2
Enter your 12-digit UPC or 13-digit EAN number. If you don't have a GS1 number yet, choose Code 128 for internal SKU tracking.
- 3
Click Generate. Your barcode appears instantly — no account needed.
- 4
Download as PNG (for label printing) or SVG (for professional print files).
- 5
Apply the label to your product, covering any existing barcodes, then verify scannability before shipping to Amazon.
Recommended Barcode Formats
Frequently Asked Questions
What barcode format does Amazon require for FBA products?
Amazon requires each product unit to have either a manufacturer barcode (UPC-A, EAN-13, ISBN, or JAN) or an Amazon-specific FNSKU barcode. UPC-A is the standard for US sellers. If your product doesn't have a GS1-registered barcode, you must apply FNSKU labels (generated through Seller Central) or purchase a GS1 UPC first.
Can I use a free online barcode generator for Amazon FBA?
Yes — for internal labels and shipment barcodes (Code 128, ITF-14). For product listing barcodes (UPC-A, EAN-13), the numbers themselves must come from GS1 or an authorized reseller. Our generator correctly encodes any valid number you enter, so as long as your UPC/EAN number is GS1-compliant, the generated barcode will meet Amazon's requirements.
What resolution should Amazon FBA barcode labels be printed at?
Amazon recommends printing at a minimum of 300 DPI on matte white, non-reflective label stock. Our PNG export is high-resolution and our SVG format is infinitely scalable, making both formats suitable for laser and thermal printers.
What size should Amazon FBA labels be?
Amazon accepts label sizes between 1" × 2" and 2" × 3". The most commonly used size is 1" × 2⅝" (compatible with Avery 5160 label sheets). Make sure there is at least ¼" (6.25 mm) of white space on each side of the barcode and ⅛" (3.1 mm) on top and bottom.
Can I generate barcodes in bulk for all my Amazon products?
Yes. Our bulk barcode generator lets you enter one SKU or product number per line and generates all barcodes at once. Download the full set as a ZIP file containing individual PNG or SVG files, then print directly onto label sheets.
What is the difference between UPC and FNSKU on Amazon?
A UPC (Universal Product Code) is a globally unique identifier tied to your product and brand, purchased from GS1. An FNSKU (Fulfillment Network Stock Keeping Unit) is an Amazon-specific code generated by Seller Central that ties an item to your seller account. Amazon uses FNSKUs internally in its fulfillment centers. You can choose to use your UPC or switch to FNSKU labeling — our generator supports both Code 128 and UPC-A formats.
Ready to generate your barcode?
Free, instant, no signup required. Supports 20+ formats including Code 128, EAN-13, UPC-A, QR Code, and more.
Generate Your Amazon Barcode — Free