Sniptool is a free screen capture software developed by Dan Stromi for Windows computers. If you want a more extensive tool that doesn't only allow you to capture a part of your monitor but also enables you to annotate the saved screenshot then, this is a highly suggested solution for you.

It is a freeware and newfangled alternative to the built-in Snipping Tool you have in your Windows system. Bear in mind that for this to successfully work you must have the appropriate Microsoft .NET Framework version installed beforehand.

Take screenshots and annotate easily

Thanks to its sleek and intuitive user interface, Sniptool is quick and easy to operate. Most of the features and tools that it offers will greet you immediately on the program's main screen. On the lower-left corner of the homepage, your settings menu can be seen wherein you can opt to customize options, such as a grabber, annotation features, and image saving to your preference.    

The two screenshot modes that it provides allow you to capture by simply drawing a rectangular part or freely marking any area of your desktop screen. However, it contains some issues wherein the last screenshot that you took overlaps the previous one instead of replacing it. This could possibly be fixed though, but it would be a hassle as you need to select and delete the prior shot.

You will use the program's pencil tool to draw. For annotation utilities, it enables you to highlight parts of the image that you would like your audience to pay attention to. Moreover, you can attach watermarks, write text, and apply the blur effect to any area. It serves several color options as well however, it is limited in the spectrum. The screenshot you captured can be saved as JPG, BMP, TIF, or PNG files.

Notable alternative            

Sniptool will be a handy utility tool for your desktop system. It is a remarkable alternative for Windows' Snipping Tool. It even presents more advanced features and tools than the built-in application. Even with newfangled offers, it's still intuitive and easy to learn especially for beginners.