UFS Explorer is a full-featured and fast data recovery and file undeleting program for Windows, Mac and Linux platforms, developed by SysDev Laboratories from Ukraine. It can recover various types of data lost in computers due to various reasons, supports various storage devices, supports all commonly used file systems on various operating systems, and can even restore files in virtual machines.

LDtk (short for Level Designer toolkit, formerly called LEd) is a free and open-source 2D level editor for Windows, Mac and Linux platforms, developed by deepnight (Sébastien Bénard) from France, who are the former director of the well-known indie game Dead Cells, with 20+ years of experience for creating various games.

redream is a small but very powerful Sega Dreamcast game console emulator for Windows, Mac, Linux, Raspberry Pi and and Android platforms. It enables you to play your favorite Dreamcast games in high-definition rendering, and re-experience the Dreamcast anywhere you go.

Nowadays, whether it is a mobile phone or a camera, the resolution of the photos taken is getting higher and higher, and the picture files are getting bigger and bigger. They not only take up a lot of disk space for local storage, but also consume a lot of time and bandwidth during the process of transferring and uploading to the website. As a result, we generally need to use tools to compress image files.

Fritzing is a free (pay to download), open-source electronic design automation software for Windows, Mac and Linux platforms, developed by Interaction Design Lab Potsdam from Germany, using C++. It simplifies what PCB layout engineers did in the past, all using drag & drop method to easily finish complex circuit design.