DIRegEx is a library of components and procedures that implement regular expression pattern matching using the same syntax and semantics as Perl for Delphi (Embarcadero / CodeGear / Borland).

DIHtmlParser is a component suite to parse, analyze, extract information from, and generate HTML, XHTML, and XML documents for Delphi (Embarcadero, CodeGear, Borland).

GemBox.Document is a .NET component that enables you to read, write, edit, convert, and print document files from your .NET applications using one simple API. With GemBox.Document you get a fast and reliable component that’s easy to use. It requires only the .NET framework, so you can deploy your application easily without having to think about other licenses. And it’s up to 85 times faster than Microsoft Word automation!

Optical character recognition component for .NET

Features:

Uses Tesseract OCR engine and Leptonica image library
Available for .NET 4.0 - 4.7
Source code included in full 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

Use OCR component to retrieve text from image, for example from scanned paper document.

uses Tesseract OCR engine and Leptonica image processing library
available for Delphi/C++ Builder 5 - 10.3 and Lazarus 1.8.4
source code included in registered version
royalty free distribution in applications

LibXL is a library that can read and write Excel files. It doesn't require Microsoft Excel and .NET framework, combines an easy to use and powerful features. Library can be used to

Generate a new spreadsheet from scratch
Extract data from an existing spreadsheet
Edit an existing spreadsheet

YuPcre2 is a library of Delphi components and procedures that implement regular expression pattern matching using the same syntax and semantics as Perl, with just a few differences. There are two matching algorithms, the standard Perl and alternative DFA algorithm:

The Perl algorithm is what you are used to from Perl and j@vascript. It is fast and supports the complete pattern syntax. You will likely be using it most of the time.
DFA is a special purpose algorithm. If finds all possible matches and, in particular, it finds the longest. It never backtracks and supports partial matching better, in particular multi-segment matching of very long subject strings.

DIHtmlParser is a component suite to parse, analyze, extract information from, and generate HTML, XHTML, and XML documents for Delphi (Embarcadero, CodeGear, Borland).