Code 128 Barcode SDK Technology

LEADTOOLS provides fast, highly accurate, and reliable Code 128 detection, reading, and writing support for .NET (C# & VB, Core, Xamarin, UWP), C/C++, iOS, macOS, Linux, Java, and web developers. LEADTOOLS award-winning libraries help programmers create amazing applications that feature Code 128 barcode support in record time.

The Code 128 symbol is a very high-density linear barcode used in a wide variety of shipping and packaging industries around the world. Code 128 is able to encode all 128 ASCII characters through the use of multiple character code sets and special command codes.

Overview of LEADTOOLS Code 128 Barcode SDK Technology

  • Supports all character subsets A, B, and C (double-density)
  • Subset switching compression mechanism allows representation of large amounts of data in smaller barcodes
  • Options to create and write a barcode that fits perfectly in your application

Code 128 Character Sets

By utilizing three characters sets, Code 128 is able to encode all 128 ASCII characters in a compact linear barcode. Special control characters allow for switching between character sets.

  • Character Set A includes all of the standard upper case alphanumeric keyboard characters, plus ASCII control characters and special characters.
  • Character Set B also contains all the standard upper and lower case alphanumeric keyboard characters and special characters.
  • Character Set C, also known as double-density mode, is composed of 100 pairs of digits and special characters. This enables numeric-only data to be represented with twice the density.

LEADTOOLS Code 128 Encoded Data Structures

GS1-128, UCC-128, EAN-128, Code 128

Code 128 Barcode

GS1-128, also known as UCC/EAN-128, UCC-128 and EAN-128, is a specialized, self-describing data structure conveyed as a Code 128 symbol. This means that not only does the Code 128 symbol store the data, but also stores what the data represents and how it should be formatted. This is done with the use of "Application Identifiers" defined in the EAN-128 standard.

UCC/EAN-14, GTIN-14, DUN-14

UCC/EAN-14 is a specialized data structure usually consisting of 13 alphanumeric characters and a check digit. EAN-14 symbols have a similar application usage as compared to the EAN-13 symbol.

SISAC

SISAC is a specialized data structure represented as a Code 128 symbol. The data structure that is stored is a SISAC encoded Serial Item and Contribution Identifier and is used to represent periodical items such as magazines.

Other Types of Linear 1D Barcodes

Technology Related to Code 128 Barcode

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Supported Development Platforms for Code 128 Barcode

Documentation Links for Code 128 Barcode

White Papers Written About Code 128 Barcode

  • Choosing the Right Barcode for Your Application

    For many of us, a day hardly goes by without seeing a barcode. For software developers, this creates immense opportunities to create software that handles both the encoding and decoding of barcodes. How does a developer or project manager get started on their path to success? When you boil it down, there are two primary questions you should ask: Which barcodes should I use? How will I use them? This white paper will help clear the muddied waters surrounding both of these questions by detailing several of the most popular barcodes and how programmers can use the award winning imaging SDK technology in LEADTOOLS to quickly and easily develop their application.

Demo Applications that Include Code 128 Barcode

HTML5/JavaScript Barcode Reader

Uses HTML5 and JavaScript to demonstrate our barcode technology reading 34 different barcode symbologies in various test and real-world images.

Screenshots of Code 128 Barcode

Code 128 Barcode

Code 128 Barcode

LEADTOOLS SDK Products that Include Code 128 Barcode

LEADTOOLS Barcode Pro v20

LEADTOOLS Barcode Pro includes everything developers need to detect, read, and write over 100 different 1D and 2D barcode types and sub-types such as UPC, EAN, Code 128, QR Code, Data Matrix, and PDF417. By building upon the award-winning LEADTOOLS Imaging Pro features, including 150+ image formats, image compression, image processing, image viewers, imaging common dialogs, 200+ display effects, TWAIN and WIA scanning, screen capture, and printing, LEADTOOLS Barcode Pro is one of the best values on the market for barcode imaging technology.

LEADTOOLS Pro Suite v20

LEADTOOLS Pro Suite is a an extensive bundle in the LEADTOOLS Pro line of SDKs and includes HTML5 Zero-footprint image viewers, barcode detect/read/write, advanced PDF read/write/view/edit, 150+ image formats, image compression, image processing, image viewers, imaging common dialogs, 200+ display effects, TWAIN and WIA scanning, screen capture, and printing. Developers using LEADTOOLS Pro Suite can develop robust imaging applications and solutions at a fraction of the cost of similar feature sets found elsewhere on the market.

LEADTOOLS Document Imaging v20

Develop powerful document imaging applications with LEADTOOLS Document Imaging. Features include PDF viewing and editing, comprehensive image annotating, specialized bitonal image displaying, and image processing. Other features include performance and memory optimizations for bitonal images, document image cleanup, including inverted text, border, hole-punch, and line removal, and scanning with LEADTOOLS Fast TWAIN and WIA.

LEADTOOLS Recognition v20

The LEADTOOLS Recognition Imaging SDK is a handpicked collection of LEADTOOLS SDK features designed to build end-to-end document imaging applications within enterprise-level document automation solutions that require OCR, MICR, OMR, barcode, forms recognition and processing, PDF, print capture, archival, annotation, and image viewing functionality. This powerful set of tools utilizes LEAD's award-winning image processing technology to intelligently identify document features that can be used to recognize and extract data from any type of scanned or faxed form image.

LEADTOOLS Document Imaging Suite v20

The LEADTOOLS Document Imaging Suite SDK is a comprehensive collection of LEADTOOLS SDK features designed to build end-to-end document imaging solutions that require OCR, MICR, OMR, ICR, barcode, forms recognition and processing, PDF, HTML5 Zero-footprint viewing, conversion, print, capture, archival, annotation, and image viewing functionality. This powerful set of tools utilizes LEAD's award-winning image processing technology to intelligently identify document features that can be used to recognize and extract data from any type of scanned or faxed form image.

LEADTOOLS Medical Imaging v20

Develop powerful Medical Imaging applications with the LEADTOOLS Medical Imaging SDK. Features include comprehensive DICOM data set support, 8-16 bit extended grayscale image support, image annotation, specialized extended grayscale image display such as window level and LUT processing, and medical-specific image processing. Other features include lossless JPEG compression, and signed and unsigned image data processing.

LEADTOOLS PACS Imaging v20

Develop robust DICOM PACS applications with LEADTOOLS PACS Imaging. Features include Medical Web Viewer Framework, high and low-level PACS SCP and SCU functions and controls, secure PACS communication, comprehensive DICOM data set support, image annotation, extended grayscale image display such as window level and LUT processing, and specialized medical image processing. Other features include lossless JPEG compression, JPIP, MRTI, and signed and unsigned image data processing.

LEADTOOLS Medical Imaging Suite v20

Develop powerful PACS and Medical imaging applications with LEADTOOLS Medical Imaging Suite. Features include LEAD's Zero-footprint HTML5 DICOM Viewer, Medical Web Viewer Framework, Medical 3D, DICOM Multimedia codecs, high and low-level PACS SCP and SCU functions and controls, secure PACS communication, Print to PACS, comprehensive DICOM data set support, image annotation, extended grayscale image display such as window level and LUT processing, DICOM Hanging Protocol, and specialized medical image processing. Other features include lossless JPEG compression, JPIP, and signed and unsigned image data processing.