Can I generate a barcode for a mix of letters and numbers?

Yes, Code 128 supports mixed-letter and numeric stock references, encoding letters, digits, and hyphens as entered.

How does the tool handle EAN-13 check digits?

EAN-13 accepts 12 digits and automatically calculates the thirteenth check digit, or it can validate a complete 13-digit number entered by the user.

What happens if I enter an invalid EAN-13 number?

The tool will indicate invalid input; for example, entering 4006381333932 results in no barcode modules generated.

Is there a way to test the barcode before downloading?

Yes, the interface includes a scan-test feature that allows users to compare the decoded payload with the original input before printing or exporting the label.

Developer ToolsTool Review

Barcode Generator

Provided byOpenToolSuiteopentoolsuite.com

Generate a barcode PNG locally. Encode ASCII Code 128 or check EAN-13 and UPC-A digits, review the payload and scan-t...

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About this tool

What Barcode Generator does

The Barcode Generator on OpenToolSuite creates standard barcodes from numeric or alphanumeric input. Users enter their data, and the tool outputs a PNG image of the barcode. The interface supports multiple formats, including Code 128 for mixed-letter references and EAN-13 or UPC-A for retail digits, with built-in validation to check the encoded payload against the original input before downloading.

Step by step

How to use the OpenToolSuite Barcode Generator

1
Choose the barcode type (Code 128 for mixed letters, EAN-13 or UPC-A for retail digits)
2
Enter the payload data into the input field
3
Review the exact value displayed beneath the preview to verify the encoded digits
4
Download the PNG file and scan it to compare the decoded payload with the source data

Is it right for you

Best for

Developers and inventory managers who need to generate standard barcodes for product labeling or stock references and want to verify the encoded data before printing.

Limitations

Results are estimates based on the input payload
No unit switching between barcode symbologies
Ads may appear on the page

Questions

Barcode Generator FAQ

Can I generate a barcode for a mix of letters and numbers?: Yes, Code 128 supports mixed-letter and numeric stock references, encoding letters, digits, and hyphens as entered.
How does the tool handle EAN-13 check digits?: EAN-13 accepts 12 digits and automatically calculates the thirteenth check digit, or it can validate a complete 13-digit number entered by the user.
What happens if I enter an invalid EAN-13 number?: The tool will indicate invalid input; for example, entering 4006381333932 results in no barcode modules generated.
Is there a way to test the barcode before downloading?: Yes, the interface includes a scan-test feature that allows users to compare the decoded payload with the original input before printing or exporting the label.

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