justyourbarcodeCodabar Generator
Make the barcode libraries and blood banks still use.
- 100% Free
- No Sign Up
- Works in Your Browser
Codabar generator
Codabar for libraries and labs
Digits and - $ : / . +, optionally wrapped in start/stop letters A–D, up to 60.
SVG and PDF are vectors: sharp at any size, best for print.
Made in your browser. Nothing is uploaded.
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Every barcode you need, made right in your browser.
No software. No uploads. No signup.
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How to use the codabar generator
Three steps, all in your browser.
- 1
Enter your data
Type or paste the number or text to encode. Errors are explained.
- 2
Adjust the barcode
Change the options if you need to. The preview updates as you type.
- 3
Download
Save the result and print it. Test a printed sample before a big run.
Codabar Generator: what to know
Codabar is a simple barcode from the 1970s that encodes the digits 0 to 9 and the symbols - $ : / . + between start and stop characters A, B, C or D. It's self-checking and easy to print, even on dot-matrix printers, which is why it spread through libraries, blood banks, photo labs and courier airbills.
Type your number and choose the start and stop characters; the generator draws the barcode with the gaps between characters that Codabar uses. Some systems call the start and stop letters T, N, * and E instead of A, B, C and D; they're the same patterns.
Codabar is a legacy symbology: it's still read by nearly every scanner and still used in systems built around it, but for new labels Code 128 is shorter and supports far more characters.
Popular uses
- Library book and membership card numbers
- Blood bank and laboratory sample labels
- Replacing labels in an existing Codabar-based system
- Testing scanners for legacy symbology support
Tips for the best result
- Match the start and stop characters your library or lab system expects; some use them to tell label types apart.
- Codabar has no check digit by default, so double-check numbers before printing.
- Leave clear space of at least 10 times the narrowest bar on each side.
Read how JustYourBarcode works and our privacy details. Numbers, pictures, CSV files and camera frames are processed in your browser and are never sent to our server. A barcode doesn't register a product number: retail UPC and EAN numbers come from GS1.