FreeEsVclComponents - a free library of VCL components for Delphi and C++Builder.
There are new controls and components, classes to improve the appearance and to better user experience.
Components has best transparency support, do not flicker.

Cross-framework core layer for creating rich visual and non-visual components.

Features
JSON reading, writing and parsing functionality
Base64 and URL encoding and decoding
Component persistence
Undo/Redo Manager
Verification of numeric, alphanumeric character sets

Delphi framework for Identity Access Management, including authorization and authentication. OAuth2 compliant authorization mechanism, supporting grants: implicit, client credentials and authorization code with PKCE (Proof Key for Code Exchange). Follows OpenID Connect specification for login workflow and identity token issuance.

DIXml is an embedded XML, XSLT, and EXSLT processing library for Delphi (Embarcadero / CodeGear / Borland). It is build on the libxml2, libxslt and libexslt libraries. However, DIXml requires no DLLs or any other external files whatsoever. All required code is compiled completely into the application's executable. DIXml is the most feature-complete XML and XSLT solution for Delphi.

Delphi and C++ Builder components for viewing, navigating, text extracting and editing PDF files.
uses PDFium open-source PDF rendering engine
available for Delphi/C++ Builder 5 - 12 and Lazarus 2.2.6
source code included in registered version
royalty free distribution in applications

Delphi and C++ Builder FireMonkey component for serial communication for Windows.
communication with devices connected to serial port
easy of use and very powerful
uses multithreading and overlapping for maximum performance
supports Delphi/C++ Builder XE2 - 12 FireMonkey applications
supports Windows 32/64bit
source code included in registered version
royalty free distribution in applications

Delphi and C++ Builder component for serial communication for Windows.
communication with devices connected to serial port
easy of use and very powerful
uses multithreading and overlapping for maximum performance
available for Delphi/C++ Builder 5 - 12 and Lazarus 2.2.6
source code included in registered version
royalty free distribution in applications

Delphi and C++ Builder communication components. Protocols 3964 and 3964R are implemented.
available for Delphi/C++ Builder 5 - 12 and Lazarus 2.2.6
source code included in registered version
royalty free distribution

DISQLite3 implements a self-contained, embeddable, zero-configuration SQL database engine for Delphi (Embarcadero / CodeGear / Borland).

HTML Component Library is a cross-patform and 100% native HTML rendering library for Delphi and Lazarus that brings all the power of HTML/CSS into desktop and mobile Delphi applications.