Free Barcode Generator Online | Create GS1, UPC & Shopify Barcodes
Generate retail-ready barcodes that scan perfectly at checkout, in warehouses, and across supply chains. Nine barcode formats including UPC-A, EAN-13, Code 128, Code 39, ITF-14, and more. Instant preview, automatic check-digit validation, and print-perfect exports (PNG, SVG, PDF). Built for Shopify sellers, warehouse teams, and label designers. Free forever. No sign-up. No watermark.
Format & Data
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SVG and PDF are best for printing — they stay sharp at any size.
⚡ Need 100 barcodes? Try Bulk Generator →Why Choose Our Barcode Generator
Professional-grade barcode generation for designers, retailers, warehouses, and Shopify sellers. Instant, accurate, and built for scale.
Real-Time Generation
See your barcode update instantly as you type. No delays. No refresh needed. Perfect for quick iterations and last-minute changes.
Scalable Vector Export
Download vector-perfect SVG barcodes for any size. Lines stay razor-sharp on label printers, packaging, and print-on-demand services.
Platform-Ready Presets
One-click Shopify, Amazon FBA, and Walmart settings. Get the exact format, dimensions, and margins each platform requires.
Validated Check Digits
EAN, UPC, and ITF-14 check digits calculated and validated automatically. Scan failures are prevented, not discovered.
100% Private & Offline
Everything runs in your browser. SKUs, GTINs, and product data stay on your device. No servers. No tracking. No uploads.
Thermal & PDF Printing
Direct PDF export with proper margins for thermal label printers, shipping labels, and packaging design integration.
Which Barcode Format Is Right for Your Use Case?
Nine formats, each with a specific purpose and compliance requirement. Choose wrong and your barcodes won't scan at checkout, in warehouses, or on shipping docks.
| Format | Capacity | Best For | When to Use |
|---|---|---|---|
| EAN-13 | 13 digits | Global retail standard | Selling outside North America (Europe, Asia, MENA, AU). Required by most supermarkets and brand registries. |
| EAN-8 | 8 digits | Small packaging | When the package is too small for a full EAN-13 (lipstick, gum, single-use cosmetics). |
| UPC-A | 12 digits | North American retail | Required by Walmart, Target, Costco, US grocery, Shopify North America. Also accepted globally. |
| Code 128 | Variable, alphanumeric | Logistics & SKUs | Shipping labels, warehouse SKUs, internal inventory. Encodes letters and numbers compactly. |
| Code 39 | Variable, alphanumeric | Government, automotive | US Department of Defense, automotive industry, military. Older but very widely supported by industrial scanners. |
| ITF-14 | 14 digits | Shipping cartons | Outer cartons of consumer products. Identifies case quantity for warehouse pick lists. |
| Codabar | Numeric + symbols | Libraries & blood banks | Library checkouts, FedEx air-bills, blood donation tracking. Self-checking, no separate check digit. |
| MSI | Numeric only | Inventory shelves | Warehouse shelving and inventory management read by handheld scanners. |
| Pharmacode | Single integer | Pharma packaging | Quality control on pharmaceutical packaging. Designed to be readable in either direction. |
🛒 Best for Shopify Sellers
Search for "Shopify barcode generator" is up 900% in three years. Here is what Shopify actually needs.
What Shopify accepts
Shopify's product inventory accepts any of these barcode formats — but the right one depends on where you sell:
- UPC-A (12 digits) — for products sold in the US, Canada, and Mexico via Shopify markets.
- EAN-13 (13 digits) — for products sold internationally (Europe, Asia, Australia, MENA).
- Code 128 (alphanumeric) — for internal SKUs, custom codes, and back-room inventory labels.
The GTIN reality
If you want your Shopify products to also list on Amazon, Walmart, Google Shopping, or any major marketplace, the underlying number must come from GS1. The visual barcode itself — the bars you print on packaging — is what our generator creates for free.
Step-by-step for Shopify sellers
- Click the Best for Shopify preset above.
- Paste your 12-digit UPC (the 13th digit auto-calculates as the check digit if you're using EAN-13).
- Verify the preview — text should appear under the bars.
- Switch to the Product Label tab to see how it looks on packaging.
- Download as SVG for your label printer, or PDF for batch printing on A4 sheets.
- In Shopify Admin → Products → enter the same number in the "Barcode (ISBN, UPC, GTIN, etc.)" field.
Need 100 different barcodes for a product launch? Use our bulk generator with a CSV exported from your Shopify product list.
Real Use Cases
Where a free qr barcode generator saves real money.
🛍️ E-commerce sellers
Generate UPC-A or EAN-13 codes for every Shopify, Amazon, eBay, or Etsy product. Pair with our QR code generator to add a brand QR on the front.
📦 Warehouse & logistics
Print Code 128 SKU labels for every shelf, bin, and pallet. Test at scale with the bulk barcode generator.
🏭 Manufacturing
Tag work-in-progress with Pharmacode or Code 128. Track production stages without expensive ERP add-ons.
📚 Libraries & archives
Codabar barcodes for book check-out, archive boxes, asset tracking. Free, infinite, no per-label license.
🏥 Healthcare
Patient ID wristbands, sample tubes, medication tracking. Code 128 is the global standard in healthcare.
🎫 Event & ticketing
Unique Code 128 codes per attendee, scanned at the door. Pair with a phone-based scanner like our free scanner page.
Frequently Asked Questions
Everything you need to know about our barcode generator.
What is the best barcode format for Shopify?
Shopify accepts UPC-A and EAN-13 for retail products. UPC-A is standard in North America; EAN-13 is required for most other markets. Use Code 128 for internal SKU labels.
What is the difference between UPC and EAN-13?
UPC-A has 12 digits and is the North American retail standard. EAN-13 has 13 digits and is used everywhere else. Modern scanners read both, so an EAN-13 product can be sold in the US too.
Do I need to buy a GS1 barcode number?
For Amazon, Walmart, major grocery chains, and brand-registered retail — yes. The visual barcode is free to generate; only the underlying number needs purchasing from GS1.
What format should I download for printing?
Always SVG or PDF for label printers and packaging. PNG can soften at small sizes; SVG keeps the lines mathematically precise.
Can I generate multiple barcodes at once?
Yes — our bulk barcode generator creates up to 100 codes from a CSV in a single ZIP.
Is this free online barcode maker really free?
Yes. Unlimited barcodes, no sign-up, no watermark, no daily limit. Codes are generated entirely in your browser.
What is Code 128 used for?
The most flexible 1D barcode — encodes letters, numbers, and symbols compactly. Standard for shipping labels, warehouse SKUs, and internal inventory.
Does the generator validate check digits?
Yes. EAN, UPC, and ITF-14 check digits are calculated and validated automatically. Invalid input shows a clear error explaining why.
Can I add a logo to a barcode?
Logos do not work on 1D barcodes (they would prevent scanning). For codes that support logos, use our QR code generator.
Does the generator work offline?
Yes. After your first visit, our service worker caches the entire app — you can generate barcodes without an internet connection.
Barcode Generators by Format
EAN-13 Generator →
The 13-digit global retail standard, with automatic check digit.
UPC-A Generator →
The 12-digit North American retail barcode for US & Canada.
Code 128 Generator →
High-density alphanumeric codes for shipping and warehouse SKUs.
Industrial Barcodes →
EAN, UPC, Code 128, ITF-14 for retail, logistics, and supply chain.
Related Tools & Guides
QR Code Generator →
For 2D codes with logo, color, gradient, and dot-style customization.
Bulk Barcode Generator →
Up to 100 barcodes from a CSV in a single ZIP.
Barcode Scanner →
Test your printed barcode actually scans before committing to a print run.
E-commerce Barcode Guide →
UPC, EAN, FNSKU explained for Shopify and Amazon sellers.
Retail Barcode Guide →
Format selection, print-ready specs, quiet zones, and testing tips.
Complete Code Glossary →
Every QR and barcode format, when to use each, error correction explained.