Barcode Generator for Small Business, Shopify & Amazon Sellers (2026)

You are launching a product and every platform has different barcode requirements. Amazon needs a UPC to list. Shopify POS needs a barcode to scan. Etsy does not care. Here is exactly what you need for each platform, what it costs, and how to generate the barcode image for free.

Barcode Requirements by Platform

Platform	Barcode Required?	Which Format?	Where to Get Numbers	Cost
Amazon FBA	Yes — for product listing	UPC-A (or GTIN exemption)	GS1 (gs1.org)	$250 + $50/yr
Amazon Handmade	~GTIN exemption available	UPC-A if no exemption	GS1 or apply for exemption	$0-250
Shopify (online only)	~Optional	UPC-A recommended	GS1	$0-250
Shopify POS (in-store)	Yes — for scanning	UPC-A	GS1	$250 + $50/yr
Shopify → Google Shopping	Yes — required	UPC-A or EAN-13	GS1	$250 + $50/yr
Etsy	✓ Not required	N/A	N/A	$0
Etsy → Wholesale/Retail	Yes — retailers require it	UPC-A	GS1	$250 + $50/yr
Walmart Marketplace	Yes — required	UPC-A	GS1	$250 + $50/yr
Your own website only	✓ Not required	N/A	N/A	$0
Craft fairs / farmers market	✓ Not required	N/A	N/A	$0

Amazon FBA — The Full Barcode Process

1. Register with GS1 ($250 for 10 UPC numbers at gs1.org)
2. Assign UPC numbers to each product variation (size, color = separate UPC)
3. Create Amazon listing using your UPC number
4. Amazon generates FNSKU — their internal warehouse tracking code
5. Generate UPC barcode image with Barcode Generator for product packaging
6. Print FNSKU labels from Amazon Seller Central for FBA shipments

The UPC goes on your product packaging (visible to the customer). The FNSKU goes on top of or alongside the UPC for Amazon warehouse scanning.

Shopify — When You Need Barcodes

Shopify Use Case	Need Barcode?	Action
Online store only, no POS	Optional	Skip barcodes initially — add later if needed
Shopify POS (retail store)	Yes	UPC for each product — enables scanner checkout
Google Shopping integration	Yes	Google requires GTIN (UPC/EAN) for product listings
Facebook/Instagram Shopping	Recommended	Improves product matching and ad performance
Wholesale to retail partners	Yes	Retailers require UPC for their POS systems
Inventory management with scanner	Yes	Use UPC or Code 128 for warehouse scanning

If you are starting with Shopify online-only, you can always add barcodes later. But if Google Shopping or POS is in your plans, register with GS1 early — the numbers are yours permanently.

The GS1 vs Reseller Decision

This decision affects every platform:

• GS1 ($250 for 10 numbers): Legitimate, permanent, accepted everywhere. Amazon, Walmart, Target, and every major retailer require GS1-issued numbers.
• Resellers ($30-100): Recycled numbers from inactive GS1 members. Can be revoked. Amazon has removed listings using resold UPCs. Not worth the risk for any business planning to scale.

The $200 you save buying from a reseller can cost you thousands when your Amazon listings get deactivated. Every seller subreddit warns against this.

Generate Your Barcode — Free

Once you have your UPC number (from GS1) or internal tracking number:

1. Open Barcode Generator
2. Select UPC-A (retail) or Code 128 (internal/shipping)
3. Enter your number
4. Download PNG — add to packaging, labels, or product listings

Small Business E-Commerce Toolkit

• Barcode Generator — UPC, EAN, Code 128 for products and shipping
• QR Code Generator — link to your Shopify store, Instagram, or product page
• Barcode Scanner — verify barcodes scan correctly before printing labels
• Invoice Generator — professional invoices for wholesale orders
• CSV Sanitizer — clean product data before importing to Shopify/Amazon
• Lead List Cleaner — clean retailer contact lists for outreach
• Image Compressor — optimize product images for faster page loads
• Image Resizer — resize product photos to platform requirements

How Many UPC Numbers Do You Need?

Products	Variations per Product	Total UPCs Needed	GS1 Plan
1-3 products	2-3 each (size/color)	3-9	10 numbers ($250)
5-10 products	2-3 each	10-30	100 numbers ($750)
10-25 products	3-5 each	30-125	100 numbers ($750)
25-50 products	3-5 each	75-250	1,000 numbers ($2,500)
50+ products	Multiple variations	250+	1,000 numbers ($2,500)

Plan for growth. Each new color, size, or variation needs its own number. Starting with 10 numbers and upgrading later is fine — GS1 lets you expand your capacity.