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

Bootstrap makes front-end web development faster and easier. It's made for folks of all skill levels, devices of all shapes, and projects of all sizes. Bootstrap ships with vanilla CSS, but its source code utilizes the two most popular CSS preprocessors, Less and Sass. Quickly get started with precompiled CSS or build on the source. Bootstrap easily and efficiently scales your websites and applications with a single code base, from phones to tablets to desktops with CSS media queries. With Bootstrap, you get extensive and beautiful documentation for common HTML elements, dozens of custom HTML and CSS components, and awesome jQuery plugins.

Component for serial communication for Windows.

Features:

Communication with devices connected to serial port
Easy of use and very powerful
Uses multithreading and overlapping for maximum performance
Supports Delphi/C++ Builder 5 - 10.1 and Lazarus 1.6
Source code included in full version
Royalty free distribution in applications

Delphi library for automating LibreOffice.

complete LibreOffice API supported
available for Delphi 7 - 10.1
source code included in full version
distributing library in applications is royalty free

VCLSkin is a component used to create skinnable user interfaces for Delphi/C++Builder applications. Extremely easy to use, simply place the component on the Main Form and Vclskin will skin the entire application with no need for source code modification. VCLSkin is the leader in its field, supporting most third-part controls in the market, VCLSkin provides support for more 3rd-party controls than any other component of its kind.