The 2D Barcode VCL components is a set of components designed for generating and printing barcode symbols in your Delphi or C++ Builder applications. Developers use the components set like any other VCL components. This effective and powerful components set extends your applications with 2-dimensional barcode technology. It is written in 100% Delphi, there isn't any dll file is required.

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

full JSON supported: literals, numbers, strings, arrays and objects
date/time encoding and decoding supported
customizable output
supports Windows 32, Windows 64, macOS, iOS and Android
available for Delphi/C++ Builder 6 - 10.1 and Lazarus 1.6
source code included in full version
royalty free distribution in applications

FFMPEG Vcl Player For Delphi is a vcl player based on directshow and ffmpeg to decode and play video/ audio.

New: Upgrade to latest FFMPEG Runtime(3.1.x)
New: Support Delphi 10.1 update 1
New: Support Playback AES encrypted network stream
New: H264 hardware decoder (require Sandy bridge+), HEVC hard decoder(require Broadwell+)

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

Delphi and C++ Builder components for accessing MS Access databases using DAO 3.5, DAO 3.6 (Data Access Objects) and ACEDAO. Provides fast, native access to data without the need of BDE (Borland Database Engine).Delphi and C++ Builder components for accessing MS Access databases using DAO (Data Access Objects) and ACEDAO.

Products
POP3 / SMTP - Feature List
Zip, GZip, Bz2, .Z Compression - Feature List
Data Compression - Feature List
TAR Archive - Feature List
FTP2 - Feature List
IMAP - Feature List
Encryption - Feature List
RSA Encryption and Signatures - Feature List
DSA (DSS) Signatures - Feature List
Diffie-Hellman (DH) Key Exchange - Feature List
HTTP - Feature List
Socket / SSL - Feature List
SSH / SFTP - Feature List
MIME + S/MIME - Feature List
MHT - Feature List
HTML-to-XML Conversion - Feature List
Charset Encoding Conversion - Feature List
Email Bounce Processing - Feature List
XMP - Feature List

The TatukGIS Developer Kernel (DK) is a powerful GIS component (SDK) for custom developing stand-alone, client-server, web server, embedded, and mobile applications. It is ideal for adding GIS functionality to already existing products, porting software applications from less attractive GIS platforms, and developing new applications from scratch. DK product editions are available for multiple development platforms:

Microsoft .NET for WinForms and WPF
Microsoft ActiveX/OCX
Microsoft ASP.NET (for web solutions)
Microsoft .NET Compact Framework (for mobile solutions)
Embarcadero Delphi/C++Builder VCL

DLL libary for serial communication for Windows.

communication with any device connected to serial port
easy of use and very powerful
uses multithreading and overlapping for maximum performance
source code included in full version
royalty free distribution with applications

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