It offers four screenshot modes for you: Free-form snip, Rectangular snip, Window snip and Full-screen snip. Snipping Tool is a nifty utility that allows you to take screenshots of any part on Windows computer screen. It has the ability to select active windows, drag to select and use a timer to allow you to set up a menu or instruction ready for the screenshot. Grab is a snipping tool-type utility that can capture the screen complete with cursor.
You need to use the 'Preview' app to change the format.
Actually there are many Snipping Tool alternative on Mac, such as the built-in Grab for Mac, it can be used to take screenshots on Mac, but it can automatically save screenshot in TIFF format. Here’s the list of free and Pro best snipping tool for Mac that is equivalent Of PC’s Snipping tools we can use for copy and paste a selected portion of Mac screen, also edit the picture screen and use for clipboard and the arrow, Drawings and more.