As we all know, the integrity of a file can be quickly determined by checking its hash value (i.e.: find out whether two files have identical content or not). There are many file hash checking tools out there, even Windows PowerShell can compute hashes of files directly, but most of them are designed for a single file.

Imager is a simple and minimal image hosting script, but had been discontinued. It was written in PHP, designed for creating a small yet full-featured image sharing/hosting website, which lets your users easily upload images to your web server or Amazon S3 service via a clean interface with Drag & Drop support.

Sometimes it's necessary to keep track of the computer use for a number of reasons, like a company wants to know how its employees are doing at work, or a parent wants to know how their children are using their computers, and you want to see what others are doing on your computer after you leave. This is where software like the keylogger (keystroke logging) comes in. But you'd better not use it for illegal or unethical purposes!

Aerialod is a very easy to use, free and open-source 3D terrain generation edge tool, developed by ephtracy (the author of MagicaVoxel). It can help you easily generate various types of terrains, render real satellite data, generate synthetic height maps, use HDR rendering, output maps up to 16K, and much more. This is enough to make it easy and fast for any user who doesn't know anything about modeling to create a 3D map.

WPanorama is a simple and professional panorama viewer, developed by Pierre-Alain Bovard from France. It supports multiple viewing angles, multiple viewing methods, 360-degree scrolling and adjustable scroll speed, mirror mode, and scrolling back and forth. It even allows us to create screensavers using panoramic images.