Open Source Software for Linux
VirtualBox
VirtualBox is a free and open-source hosted hypervisor for x86 virtualization, developed by Oracle. The software is used to create virtual machines that can be used for testing, and building software in virtually contained environments. VirtualBox is available for on macOS, Linux. Windows, Solaris and OpenSolaris.
UNetbootin
UNetbootin, short for Universal Netboot Installe is a tool that allows you to easily create bootable USB flash drives to install or try operating systems. This software is designed to be cross-platform and works with Windows, as well as Mac and Linux operating systems.
XAMPP
XAMPP is a free and open-source Apache web server stack used in web development. The XAMPP stack contains pre-configured versions of Apache HTTP Server, MariaDB, PHP, and Perl. XAMPP makes it really easy to install and use the stack on macOS, Linux or Windows.
Kitty Terminal
Kitty is a fast, featureful, GPU based terminal emulator for macOS, Linux and Windows. The project is developed by kovidgoyal and released as free and open software under the GPL-3.0 License. The terminal achives maximal performance by offloading rendering to the GPU for lower system load and smooth scrolling, making it a good choice when compared to resource heavy elctron-based terminals. Kitty Terminal also supports modern features like graphics, unicode, true-color, OpenType ligatures, mouse protocol, hyperlinks, focus tracking, bracketed paste and several new terminal protocol extensions.
Twine
Twine is an open source tool for telling interactive stories. With Twine, it simple to create interactive fiction that can be displayed as web pages. Each projects starts with a blank pages that binds itself and it can bind itself along an infinite number of spines extending in any direction. Twine runs nativley on macOS, Linux and Windows machines and on the web.
Apache OpenOffice
Apache OpenOffice is a free and open-source office suite that offers free applications for word processing, spreadsheet, presentations, graphics, and databases. It is one of the successor projects of OpenOffice.org and the designated successor of IBM Lotus Symphony. With Apache OpenOffice all data is stored in an open standard format allowing users to read and write files from all major office software.
ClearOS
ClearOS is an open source software platform and operating system your computer, tablet, and phone. ClearOS is based on Red Hat Enterprise Linux and leverages the open source model to deliver a simplified, low cost hybrid IT experience for SMBs. The operating system ships with an online store of 100+ applications and services that SMBs can quickly browse and select to install on their server. This collection of free and fee-based applications empower SMBs to download, install, and pay for only those applications and services they need and value.
PlayOnLinux
PlayOnLinux is an application which allows you to easily install and use numerous games and apps designed to run with Microsoft Windows. As few games are avalible for UNIX-like systems like macOS and Linux, PlayOnLinux playes an important role of allowing people to play games utilizing wine skins. A wrapper around Windows games and software that allow the game to be used on Linux and macOS.
WPS Office
WPS Office is a powerful office suite that offers tools for writing documents, managing speadsheets and creating presentations. WPS Office features built-in spell check, keyboard shortcuts, view multiple documents, password protection, save to .pdf, convert to .doc .docx, mail merge, and an intuetive interface that makes you feel right at home. Included in the WPS Office suite is WPS Writer, WPS Spreadsheet, and WPSPresentation.
pgModeler
pgModeler is an open source software for modeling PostgreSQL databases. It merges the classical concepts of modeling using entity-relationship diagrams with specific features that only PostgreSQL implements. With pgModeler you can create and edit database models easily with a simple and intuitive interface. pgModeler allows you to design your database once with dynamic code generation, and export to multiple versions of PostgreSQL ranging from 9.x to 13.x.