TinyCAD is a free and open-source but powerful and friendly tool that is widely used in the field of electrical engineering and circuit design. With it, users can easily create and edit circuit diagrams, and visualize and analyze complex electrical systems. It is popular among hobbyists, students, engineers, and professionals for its simplicity and ease of use.

In the last century, almost all photos were on paper, and there were many beautiful and precious memories in them. With the development of technology, the storage method of digital photos has become relatively more convenient and safer. Therefore, many people want to scan old paper photos into electronic versions, store them in computers, and even browse them at any time through their mobile phones or share them with relatives and friends. At this time, in addition to computer software like PhotoGlory that can help you do this, now you have a better choice on smartphone, PhotoScan.

Adventure (full name: Adventure IDE, formerly called AutoGUI) was originally an IDE designed specifically for AutoHotkey that combines a script editor with a GUI designer, debugger and tools. It is as easy to use as Notepad, and it is both an editor and a structure library, function library, and script library. Once you become proficient, your original development efficiency can be greatly improved.

TVBox is a very powerful Internet movie and TV application for various Android devices (especially suitable for smart TVs and TV boxes), developed by o0HalfLife0o from China. It is extremely simple to use: install, run, find and enter a valid video playback source address, then you can watch a large number of high-definition film and television resources for free. Even better, it's completely free, open-source and has no ads or functional restrictions, and no membership required.

Nem's Mega 3D Terrain Generator is a free, simple yet powerful 3D terrain generator for Windows, developed by Ryan Gregg in 2005, using C# and C++.NET. It comes with intuitive 3D drawing tools, texture customization, multiple export options, and other settings, and allows you to create stunning, realistic 3D terrains quickly and easily.