Check Digit Calculator
Calculate the GS1 check digit for UPC, EAN, GTIN, and SSCC numbers in your browser.
UPC / EAN
GTIN
SSCC
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Toll Free 1.877.263.1343
Free Barcode Tools
Create, convert, scan, and count barcodes in your browser.
Barcode Quantity Calculator
Calculate exactly how many UPC/EAN barcodes you need based on your products and variations.
Multi-Product
Variations
Recommendations
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Bulk Barcode Generator
Generate multiple barcodes at once. Supports UPC-A, EAN-13, Code 128, and more formats with batch export.
Multiple Formats
Bulk Export
PNG/SVG
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Amazon FNSKU Label Generator
Generate professional FNSKU barcode labels for Amazon FBA products. Supports Avery 5160 format with batch printing.
Code 128
Batch Print
Save JPG
Avery 5160
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Amazon FBA Calculator
Calculate Amazon FBA fees, profit margins, and ROI for your products before listing.
Fee Breakdown
Profit Analysis
ROI Calculator
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UPC to ASIN Converter
Convert between UPC barcodes and Amazon ASINs. Look up product information across marketplaces.
UPC to ASIN
ASIN to UPC
Bulk Convert
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SKU Generator
Create organized, consistent SKU codes for your inventory. Customizable formats and naming conventions.
Custom Format
Batch Create
Export CSV
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Country of Origin Labels
Generate compliant "Made in [Country]" labels for your products. Multiple sizes and formats available.
200+ Countries
Multiple Sizes
Print Ready
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Product Label Suite
All-in-one label creator for shipping labels, product labels, and custom stickers.
Multiple Templates
Custom Design
Batch Print
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Barcode Scanner
Scan barcodes using your device camera. Decode UPC, EAN, QR codes and more instantly.
Camera Scan
All Formats
History Log
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UPC-E to UPC-A Converter
Convert compressed UPC-E barcodes to full UPC-A format and vice versa. Essential for retail compliance.
UPC-E to UPC-A
UPC-A to UPC-E
Validation
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QR Code Scanner
Scan QR codes with your device camera or by uploading an image. Decode links, WiFi, contacts and more instantly.
Camera Scan
Image Upload
History Log
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QR Code Generator
Create custom QR codes for links, text, WiFi, and contact cards. Static codes that never expire, with no watermark — ready to download and print.
Links & WiFi
PNG/SVG
No Expiry
Open Tool →
Which tool should I use?
- Need a count of codes Quantity Calculator
- Already own numbers, need images Bulk Generator
- Amazon FBA item labels FNSKU Generator
- Decode a barcode or QR Barcode Scanner QR Scanner
- Convert or finish a number UPC/ASIN UPC-E Check Digit
Amazon barcode rules, including UPC versus FNSKU, are covered in our Amazon barcode guide.
Barcode Tools: Common Questions
Are these barcode tools really free to use?
Yes. Every tool on this page is completely free. There is no account required, no trial period, and no hidden cost. If you need actual UPC or EAN barcodes to sell products, those are available separately through our barcode packages.
Do the tools store or share any of my data?
No. The tools run in your browser. Product names, SKUs, barcode numbers, and label data stay on your device for the session.
Which barcode formats do these tools support?
UPC-A, UPC-E, EAN-13, EAN-8, Code 128, QR Code, and Amazon FNSKU. UPC is standard in the US and Canada; EAN-13 is used in most other markets.
What is the difference between UPC, EAN, GTIN, and FNSKU?
UPC (12 digits) and EAN (13 digits) identify products at retail. GTIN covers both. FNSKU is Amazon’s warehouse identifier. Most sellers need a UPC or EAN to list, then Amazon assigns an FNSKU.
How can Amazon sellers use these tools?
Count barcodes across variations, print FNSKU labels, look up ASINs from UPCs, and convert UPC-A and UPC-E. More detail is in the Amazon barcode guide.
Can I use the barcode generator to create barcodes I can sell with?
The bulk generator previews codes you already own. To sell on Amazon or in stores, source legitimate UPC or EAN numbers. Purchase barcodes from BarCodesTalk for instant delivery with no annual fees.
How do I know how many barcodes I need?
Each unique variation — size, color, flavor, or style — needs its own barcode. A shirt in three colors and four sizes needs 12 codes. Use the Quantity Calculator before you buy.
Can I create and scan QR codes for free?
Yes. QR Code Generator makes static codes for links, text, WiFi, and contacts. QR Code Scanner decodes with your camera or an uploaded image.
Do these tools work on mobile devices?
Yes. The scanner can use your phone camera for UPC, EAN, and QR codes. Label printing is more reliable on a desktop with a printer.