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Code-11 barcode generator
Used in telecommunications to label equipment. Digits and hyphen.
Terms of use: this site only turns the data you type into a barcode; it does not create, verify, register or store that data, and nothing is sent to any server. The content you enter and the use of the generated barcodes are solely the user's responsibility, including the right to use GTIN/EAN numbers (licensed by GS1), the accuracy of the information and compliance with applicable law. Links with dangerous schemes and typical attack patterns (scripts, SQL injection) are blocked, but this does not replace your own checks. By using the generator you accept these terms.
Preview
PDF and AI are vector files in CMYK, with black as C0 M0 Y0 K100. PNG, JPG and SVG are RGB.
Test every barcode before use. The user is solely responsible for the accuracy of the barcode.
Code-11 specification
Code-11 (USD-8) is used mainly in telecommunications to label equipment and components.
Characters: digits 0–9 and the hyphen -.
Checking: check digit C (weights 1 to 10, modulo 11) and, from 10 characters up, also check digit K (weights 1 to 9, modulo 11). Included by default; disable them if the scanner is configured without checking.
Wide-to-narrow ratio: 3:1 by default, adjustable from 2:1 to 3:1.
Note: many scanners ship with Code-11 disabled — enable it in the scanner settings.
How to use
Type the content. To create several barcodes, put one per line.
Adjust size, height, margin and colors. The preview follows every change.
Download each barcode in the format you need, or all of them as a ZIP.
In PDF, SVG and AI the size is set by the module X — the width of the narrowest bar, in millimetres. The default for this symbology is 0.33 mm. PNG and JPG use the chosen pixel resolution. If your printer warns about ink spread, increase the bar width reduction.
Frequently asked questions
What is a Code-11 barcode?
Code-11 (USD-8) is used mainly in telecommunications to label equipment and components.
What can a Code-11 barcode contain?
Characters: digits 0–9 and the hyphen -.
How do I create a Code-11 barcode for free?
Type the data in the generator on this page, adjust size and colors, and download the barcode as PNG, JPG, SVG, PDF or Adobe Illustrator (AI). PDF and AI are vector files in CMYK with 100% K black, ready for print. Everything runs in your browser: nothing is uploaded and no sign-up is needed.
What size should a printed Code-11 barcode be?
The vector size is defined by the module X (narrowest bar). This generator uses 0.33 mm by default for Code-11; you can change it before downloading.
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