Code 128B Barcode generator
Generate easy & customizable Code 128B Barcodes in seconds.
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Free Code 128B Barcode Generator – Create Barcodes Online
Generate high-density Code 128B barcodes for general alphanumeric text in seconds with TryQRCode.
Create a free Code 128B barcode for any printable text—mixed lowercase and uppercase letters, digits, and punctuation (ASCII 32–127). Customize the colors, width, and height, preview it live, and download it as PNG, SVG, JPG, or WEBP for retail labels, inventory tags, shipping labels, and packaging. No login or technical skills required.
Generate Code 128B BarcodeWhat is a Code 128B Barcode?
Code 128B is subset B of the Code 128 symbology. It encodes all printable ASCII characters (ASCII 32–127), including mixed lowercase and uppercase text, which makes it the natural choice for general alphanumeric strings. Like every Code 128 symbol, it includes the mandatory mod-103 check character for reliable error-checked scanning.
In short: Code 128B is the subset B of Code 128 that encodes all printable ASCII characters (ASCII 32–127), including mixed lowercase and uppercase text, with a mandatory mod-103 check character.
Code 128B Quick Facts
| Encodes | All printable ASCII characters (ASCII 32–127) |
|---|---|
| Character set | Subset B of Code 128 (uppercase and lowercase) |
| Length | Variable |
| Check digit | Mandatory mod-103 check character |
| Encoding standard | ISO/IEC 15417 |
| Typical use | General alphanumeric strings and mixed-case text |
How to Create Your Code 128B Barcode
Follow these four steps to generate a professional Code 128B barcode in under a minute.
1
Enter Your Data
Type or paste any alphanumeric text—mixed case, digits, and punctuation.
2
Customize the Look
Adjust foreground and background colors, width scale, height, and toggle the human-readable text.
3
Generate & Preview
Your barcode renders instantly with a live preview so you can verify it before download.
4
Download & Print
Export as PNG, SVG, JPG, or WEBP and use it on labels, tags, and packaging.
No registration required. Your barcode is generated in seconds and ready for print or digital use.
Benefits of Code 128B Barcodes
Why teams and businesses choose Code 128B barcodes for dependable, scannable identification.
All Printable ASCII
Encodes lowercase and uppercase letters, digits, and punctuation.
High Density
Stores more data per inch than Code 39, keeping labels smaller.
Mandatory Check Character
Every symbol includes the required mod-103 check for safe scanning.
International Standard
Published under ISO/IEC 15417 and recognized worldwide.
General Purpose
The natural subset for everyday alphanumeric labeling needs.
Scans Everywhere
Read by virtually all modern laser and camera barcode scanners.
Common Use Cases for Code 128B
See how Code 128B barcodes are used across retail, logistics, healthcare, and manufacturing.
Retail and Inventory
Price tags, shelf labels, and warehouse stock identifiers.
Shipping and Logistics
Parcel labels and GS1-128 transport labeling workflows.
Healthcare
Patient wristbands, specimen labels, and instrument tracking.
Manufacturing
Work-in-progress tracking and production control labels.
Mixed-Case Records
Labels with explanatory text, names, and structured IDs.
Ticketing and ID
Event tickets, membership cards, and access control badges.
Code 128B Barcode – Frequently Asked Questions
Quick answers about how Code 128B works and where to use it.
Code 128B is subset B of Code 128. It encodes all printable ASCII characters (ASCII 32–127), including mixed lowercase and uppercase text, and is the natural choice for general alphanumeric strings.
Code 128B encodes printable ASCII 32–127: uppercase and lowercase letters, digits, punctuation, and symbols. It cannot encode control characters.
128A encodes uppercase letters and ASCII control characters (00–95), 128B encodes all printable ASCII (32–127) including lowercase, and 128C encodes numeric data as pairs of digits for double density.
Yes. Every Code 128B symbol includes the mandatory modulo-103 check character that scanners use to validate the data.
Use 128B whenever your data mixes uppercase and lowercase letters or contains general printable text. It is the safest default for alphanumeric data.
Yes. Code 128B is part of the Code 128 standard (ISO/IEC 15417) and is read by virtually all modern barcode scanners.
Create Your Free Code 128B Barcode Now
Generate a scannable, print-ready Code 128B barcode in seconds—download it in any format and use it wherever general alphanumeric labeling is needed.
Generate Code 128B Barcode
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