Free Software
OpenBoard
OpenBoard is an interactive whiteboard for schools and universities. With OpenBoard you can use a pen tablet, an interactive whiteboard or even a mouse to write and annotate your course. The software is also designed to be easy to use, yet powerful enough to facilitate most usecases, so that you can focus on your presentation rather than the software itself.
phpBB
One of the world most popular, free, open-source and self-hosted forum software, written in PHP. With phpBB you can create communities that can be hosted with most hosting providers. The software package is built and designed from the ground up to to be extensible and provides customization option through themes and feature extensions through plugins. The extensive database of user-created extensions and styles database, easy of use, and the simple installation process has made phpBB a common choice among self-hosted forums and communities.
CandyBar
CandyBar macOS native application that allow you to extend and customize your Dock. The app includes features to create smart lists, drag and drop icons and select whole collections or unique icons. If you don't like the look of an Icon in your Dock, you can make it look the way you want by simply dragging images in to replace them.
Docker
Docker is an open-source platform that automates deployment and development life cycles with OS-level virtualization. These virtualization are called containers and contain application specific operating system, software and configurations that are built on deployment. Containers are encapsulated and work across systems, be it in local development or on production servers, they run anywhere. Docker provides a Community Edition (CE) and an Enterprise Edition (EE) and can be used for personal and enterprise level projects alike.
MonoDevelop
MonoDevelop is a free and open-source IDE (Integrated Development Environment) for macOS, Linux and Windows. The software primary focus is to provide and IDE specifically for Mono and .NET frameworks. MonoDevelop features intellisense automatic code completion, source control, a graphical user interface.
Apple Mail
Apple Mail is email client built specifically for the Apple eco-system. You can use Apple Mail on your mobile iOS device or your macOS desktop or laptop. It provides all the features needed to communicate effectivley via email, such as view and manage your favorite mailboxes right in the Mail sidebar, search for emails, it's easy to see which mailboxes are being searched and quickly select different mailboxes, easily view and sort messages in column layou and quickly open and use tabs in the Mail window.
Unreal Engine
The Unreal Engine is a game engine and suite of tools and technologies developed by Epic Games. The engine was first released in 1998 as a part of the first-person shooter game Unreal, where the game itself was built on the engine. Today the Unreal Engine has grown into an ecosystem that includes a marketplace for game assets that can help indie developer to develop games and make a living selling game assets them selves. The Unreal Engine is free to use and provides a revenue-share model for developers and has been used to tipple A studios and indie developers to create games in almost every genre, including platformers, fighting games,RPGs, MMORPGs, and many more.
DrJava
DrJava is a lightweight programming environment specifically designed for writing Java. Through its design the IDE foster test-driven software development that leads to scalable and maintainable Java applicaitons. DrJava includes an intelligent program editor, an interactions pane for evaluating program text, a source level debugger, a unit testing tool, and a new code coverage tool.