Delphi and C++ Builder optical barcode recognition component for FireMonkey.
uses ZBar bar code reader library
supports EAN-13/UPC-A, EAN-8, UPC-E, Code 39, Code 93, Code 128, Codabar, GS1 DataBar, GS1 DataBar Expanded, Interleaved 2 of 5, SQ Code and QR Code barcodes
supports Windows, macOS, iOS and Android
available for Delphi/C++ Builder XE3 - 10.4
source code included in registered version
royalty free distribution in applications

ImageGear .NET easily integrates enterprise-class file viewing, annotation, conversion, and image processing functions to any application. Improve image and document processing with ImageGear .NET. Our library supports more than 100 formats including images, DICOM, PDF, Microsoft Office files, and more. You can easily integrate a large number of complex imaging operations into C# or VB.NET applications and use our expanded functionality such as optical character recognition (OCR), barcode recognition, scanning, and support for medical DICOM images.

Delphi and C++ Builder optical barcode recognition library for Android.
uses ZXing library
supports UPC-A, UPC-E, EAN-8, EAN-13, Code 39, Code 93, Code 128, Codabar, ITF, RSS-14, RSS-Expanded, QR Code, Data Matrix, Aztec and PDF 417 barcodes
available for Delphi/C++ Builder XE5 - 10.3
source code included in registered version
royalty free distribution in applications

Use OCR.NET component to retrieve text from image, for example from scanned paper document.
uses Tesseract OCR engine and Leptonica image processing library
available for .NET 4.0 - 4.8
source code included in registered version
royalty free distribution in applications

uses ZBar bar code reader library

supports EAN-13/UPC-A, EAN-8, UPC-E, Code 39, Code 93, Code 128, Codabar, PDF417, GS1 DataBar, GS1 DataBar Expanded, Interleaved 2 of 5 and QR Code barcodes
available for .NET 2 - 4.7
source code included in registered version
royalty free distribution in applications

Optical character recognition library for Android. Use OCR.NET for Android to retrieve text from images.

uses Tesseract OCR engine and Leptonica image processing library
supports Android armeabi-v7a devices
source code included in registered version
royalty free distribution in applications

Shift your applications into high gear with speech recognition grammars. A speech recognition grammar is a collection of rules comprised of words and phrases to be recognized from speech. A speech recognition engine (i.e., recognizer) uses a grammar to enhance its ability to recognize specific combinations of spoken words and phrases.

Aspose.OCR for .NET is a robust optical character recognition API. Developers can easily add OCR functionalities in their applications. API is extensible, easy to use, compact and provides a simple set of classes for controlling character recognition. It supports commonly used image formats and provides functionalities like reading characters and fonts from images, bold and italic styles, noise removal filters, scanning of the whole image or any part of the image and much more.

WHILE TESSERACT IS CERTAINLY THE BEST OCR LIBRARY AVAILABLE SO FAR, TESSERACT.NET SDK IS ONE OF THE BEST WAYS TO EQUIP YOUR APPLICATION WITH TEXT RECOGNITION CAPABILITIES.

Delphi and C++ Builder optical barcode recognition library for Android.
uses ZXing library
supports UPC-A, UPC-E, EAN-8, EAN-13, Code 39, Code 93, Code 128, Codabar, ITF, RSS-14, RSS-Expanded, QR Code, Data Matrix, Aztec and PDF 417 barcodes
available for Delphi/C++ Builder XE5 - 10.3
source code included in registered version
royalty free distribution in applications