Barcode Validator

How to Use the Barcode Validator

To validate barcodes, paste them into the input field. You can paste multiple barcodes at once. Separate each barcode with a new line.

1. Paste your barcodes into the input field
2. The validation happens automatically
3. In the results table, you can see which barcodes are valid and which are not. The check digit is also displayed.
4. If the barcode was invalid, you can see the correct barcode with the correct check digit.

How to validate a barcode

A barcode is validated by calculating the last digit (known as check digit) from the other digits.

1. Input is:
   0 4 9 0 0 0 0 8 1 3 8 1
2. Remove the last digit, we will recalculate it.
   0 4 9 0 0 0 0 8 1 3 8
3. Add all of the digits in the odd positions (starting from the left)
   0 + 9 + 0 + 0 + 1 + 8 = 18
4. Multiply the sum by 3
   18 x 3 = 54
5. Add all of the digits in the even positions
     4 + 0 + 0 + 8 + 3 = 15
6. Add the odd position result and the even position result
   54 + 15 = 69
7. Find the number that, when added to the result, makes the total a multiple of 10
   69 + ? = 70
8. The check digit is 1
   69 + 1 = 70
   049000081381

Supported barcode types

This tool supports the following 4 barcode types:

UPC-A

12 digits

Universal Product Code (UPC) with 12 digits

UPC is a 12-digit barcode used extensively for retail packaging in the United States. UPC codes are also used in Canada, the UK, Australia, and other countries. UPC codes always have exactly 12 digits.

GTIN/EAN-13

13 digits

Global Trade Item Number (GTIN) or European Article Number (EAN) with 13 digits

GTIN-13 is used for products sold in Europe and other countries. EAN-13 is essentially the same thing, but specifically an EU standard. GTIN-13 codes are used in the US and Canada for products sold at retail point of sale. GTIN-13 codes always have exactly 13 digits.

GTIN-14

14 digits

Global Trade Item Number (GTIN) with 14 digits

GTIN-14 is used for products sold at retail point of sale. Typically this format is used for multiple product packaging, cases and pallets. GTIN-14 codes always have exactly 14 digits.

GTIN/EAN-8

8 digits

Global Trade Item Number (GTIN) or European Article Number (EAN) with 8 digits

GTIN-8 is used for products sold at retail point of sale. EAN-8 is essentially the same thing, but specifically an EU standard. Typically this format is used only for smaller products where space to print the barcode is limited. GTIN-8 codes always have exactly 8 digits.

Mastering this tool

• Learn about validation - If you click on a barcode in the results table, you can choose to see the full validation process. This is a great was to learn yourself how to validate barcodes.
• Barcode lookup - In the same row context menu, choose to lookup the barcode. This will open a new tab with more information about the barcode.
• Generate a barcode image - If you want to generate a barcode image, click on the Generate Barcode menu item. This will open a new tab with the barcode image.
• Share your results - Share your results with your friends and colleagues. Click
  and share a link to this tool and optionally include your input and settings as well.
• Contribute - We are always looking to improve. If you have any feedback or suggestions, please use the feedback button
  to let us know. We read every feedback and use it to improve this tool.

The Best Barcode Validator

Our Barcode Validator is simple to use, yet still uniquely powerful.

• Easy - Sometimes you just need a simple tool with no fuss. Our Barcode Validator is just that. But for those times when you need more, it also has powerful features such as bulk processing, additional barcode information and automatic barcode type detection.
• Fast - Our Barcode Validator is fast. Start now and instantly get validated. No waiting, just instant results.
• Ad free - Our Barcode Validator is free from ads. Many other tools are cluttered with ads, but not this one.