Delphi linear algebra library.

uses OpenBLAS optimized BLAS and LAPACK library
supports Windows 32 and Windows 64
available for Delphi 5 - 10.1 and Lazarus 1.6
source code included in full version
royalty free distribution in applications

Delphi and C++ Builder serial communication library for FTDI devices for Android.

uses FTDI D2XX library
no special root access privileges needed
available for Delphi/C++ Builder XE6 - 10.1
source code included in full version
royalty free distribution in applications

The phrase rapid application development was a concept made famous by Borland Delphi (now Embarcadero Delphi) nearly two decades ago. Delphi came with an impressive library of ready to use components, re-usable classes and functions that set a new standard in productivity. Delphi is still knocking out killer apps even today and is experiencing somewhat of a revival in the IT community. The visual component library and the fact that you can easily re-use and extend these controls means that you can do more in less time. You focus on writing your app rather than wasting time re-inventing the wheel over and over again.

Delphi library for processing Excel .xlsx documents.

create or modify Excel Workbook .xlsx files
Microsoft Office installation is not required
uses Microsoft Open XML SDK 2.5 and ClosedXML libraries
requires Microsoft .NET 4 Framework or higher
available for Delphi 7 - 10.1
royalty free distribution in applications

j@vascript engine for Delphi.

uses Microsoft ChakraCore j@vascript engine
supports Windows 32 and Windows 64
available for Delphi 6 - 10.1 and Lazarus
source code included in full version
distributing library in applications is royalty free

Delphi and C++ Builder printing library for Android.

uses Android Print and PrintHelper API
supports printing images, HTML pages, PDF files and generated PDF documents
requires Android 4.4 KitKat or higher
available for Delphi/C++ Builder XE7 - 10.1
source code included in full version
royalty free distribution in applications