Feature Description

LEADTOOLS provides fast, highly accurate, and reliable QR Code API to detect, read, and write for .NET (C# & VB), C/C++, WinRT, iOS, macOS, Java, and web developers. LEADTOOLS award-winning libraries help programmers create amazing applications that feature QR Code functionality in record time.

QR Code, or Quick Response Code, is one of the most popular 2D barcodes available today and is used in a variety of industries, including commercial tracking applications and mobile phone tagging applications. QR Code offers more data storage than linear (1D) barcodes—up to 2,953 bytes, 4,296 alphanumeric, or 7,089 numeric digits—and includes an Error Correction Code (ECC) for error-free reading even when a symbol is partially lost or destroyed.


Overview of LEADTOOLS QR Code SDK Technology

QR Code


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QR M1 1

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Click here for detailed information on writing QR Code symbols.

Other Types of 2D Barcodes

Technology Related to QR Code