The .Net Runtime Library for Delphi (CNClrLibrary) is the best library to work with .Net framework and .Net libraries from Delphi. It is designed to provide a way to interact with applications written in anyone of the .Net languages (such as C#, Visual Basic.Net, Delphi.Net, JScript.Net, etc) from Delphi.

SQLite Data Access Components (LiteDAC) is a library of components that provides native connectivity to SQLite from Delphi and C++Builder including Community Edition, as well as Lazarus (and Free Pascal) on Windows, Linux, macOS, iOS, and Android for both 32-bit and 64-bit platforms. LiteDAC is designed for programmers to develop truly cross-platform desktop and mobile SQLite database applications with no need to deploy any additional libraries.

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 2 - 4.7
source code included in registered version
royalty free distribution in applications

It contains components and classes for Borland Delphi 7 – 2006, CodeGear Delphi 2007, RAD Studio 2009, Embarcadero RAD Studio 2010, XE - XE10.2, Lazarus (Win32), intended to increase capacity of the client part of database application in part of interaction with applications user.

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

uses UsbSerial library
supports CP210x, CP2130, CDC, FTDI, PL2303 and CH34x devices
no special root access privileges needed
available for Delphi/C++ Builder XE6 - 10.2
source code included in registered version
royalty free distribution in applications

jаvascript engine for Delphi.

uses Microsoft ChakraCore jаvascript engine
supports Windows 32 and Windows 64
available for Delphi/C++ Builder 6 - 10.2 and Lazarus 1.8.4
source code included in registered version
distributing library in applications is royalty free

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

uses usb-serial-for-android library
supports FT232R, CDC/ACM (Arduino Uno), CP2102 and CH34x chips
no special root access privileges needed
available for Delphi/C++ Builder XE6 - 10.2
royalty free distribution in applications

Syncfusion, Inc., the developer solutions company of choice, announced its second volume release of the year: Essential Studio 2016 Volume 2, adding enhancements and features across all supported platforms. Two suites in particular Essential Studio for Universal Windows Platform (UWP) and Essential Studio for Xamarin received substantial enhancements.

Our award-winning InfoPower for Delphi VCL library is the most popular suite of components for building front ends for database applications. InfoPower’s masterpiece grid is one of the most powerful components in the InfoPower library, greatly expanding upon the capabilities of Delphi’s native grid component. It includes advanced edit and combos controls, lookup controls, RTF editing, filtering and searching user interfaces, and so much more. Check the PDF overview to see what kind of controls come with InfoPower.

MigraDoc is a document generator. It supports almost anything you find in any good word processor. You just add paragraphs, tables, charts, arrange all this in sections, use bookmarks to create links, tables of contents, indexes, etc. MigraDoc will do the layout creating page breaks as needed. MigraDoc will create PDF or RTF documents.