JVCL is a library of over 600 visual and non-visual Delphi components developed by "Project JEDI" members. It supports Delphi/C++Builder 6 to Delphi Seattle.

Features

Open source components
VCL enhancements
Multiple Delphi and C++ Builder version support

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 jаvascript. 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.

Delphi and C++ Builder optical character recognition component.

Features

Uses Tesseract OCR engine and Leptonica image library
Supports Delphi/C++ Builder 5 - 10 and Lazarus 1.4.4
Source code included in full version
Royalty free distribution in applications

VMProtect protects code by executing it on a virtual machine with non-standard architecture that makes it extremely difficult to analyze and crack the software. Besides that, VMProtect generates and verifies serial numbers, limits free upgrades and much more.

Convert .NET is an integrated, powerful, multi-purpose conversion and developer tool (7-in-1).

Delphi and C++ Builder components for viewing, navigating, text extracting and editing PDF files.

Features:

Uses PDFium open-source PDF rendering engine
Supports Delphi/C++ Builder 5 - 10 and Lazarus 1.4.4
Source code included in full version
Royalty free distribution in applications

DIFileFinder is collection of Delphi components (Embarcadero / CodeGear, Borland) to search the file system for files and or folders matching (or not matching!) particular attributes and / or name patterns. Pattern syntax includes standard wildcards as well as full Perl compatible regular expressions. DIFileFinder supports inclusion as well as exclusion filters.