CEF4Delphi is an open source project to embed Chromium-based browsers in applications made with Delphi or Lazarus/FPC for Windows, Linux and MacOS.

Cross-platform (desktop, mobile, console) 3D and 2D game engine. Powerful visual editor. Support for glTF, X3D, Spine and more. Fast clean code using modern Pascal. Free and open-source.

Skia4Delphi is a cross-platform 2D graphics API for Delphi platforms based on Google's Skia Graphics Library. It provides a comprehensive 2D API that can be used across mobile, server and desktop models to render images.

Indy - Internet Direct

Three engines to render SVG (Delphi Image32, Skia4Delphi, Direct2D wrapper) and four components to simplify use of SVG images (resize, fixedcolor, grayscale...)

WebView4Delphi is an open source project created by Salvador Díaz Fau to embed Chromium-based browsers in applications made with Delphi or Lazarus/FPC for Windows.

Delphi's VCL library as a Python module for building Windows GUI

Four advanced components to simplify use of Icon Fonts as images and ImageList: TIconFontImage, TIconFontsImageCollection, TIconFontsVirtualImageList, TIconFontsImageList (for VCL and FMX). Full support for High-DPI apps. Rendering optimized with GDI

Expertiza is a web application through which students can submit and peer-review learning objects (articles, code, web sites, etc). The Expertiza project is supported by the National Science Foundation.

Open Source Library for connecting Firebase by Delphi VCL/FMX

DevExpress VCL Components Automatic Installer

Free ErrorSoft Components for Delphi (VCL) & EsVclCore lib

zControls

Grid control for Delphi and C (VCL and FMX)

A collection of VCL/LCL components for Delphi/Lazarus - buttons, panels, LinkLabel, ProgressBar, ColorComboBox, ColorListBox, Timer and other

A common cross-platform GUI library, the core uses Lazarus LCL.

Delphi and Lazarus Message Dialogs with Formatted Text

Varnish 3 to 4 migration script

WebUI4Delphi is a WebUI wrapper, which allows you to use any web browser as a GUI, with Delphi or Lazarus/FPC in the backend and HTML5 in the frontend.

falco is a VCL parser and linter dedicated to Fastly