LightShot is a simple & free tool which makes taking screenshots very easy.
With the click of a keyboard shortcut, a cropping interface appears where it is possible to:
  • set the area of the screenshot
  • make it fullscreen
  • copy to clipboard
  • upload to the net & get a link
  • edit it on a web-based service



Most of the similar tools instantly take a screenshot of the area you selected before clicking any approve button. LightShot makes it kindly, waits for you to arrange the area, shows you the size of it & a click is required which is better to prevent wrong screenshots.
The tool can work in every computer as it comes as a Windows desktop application, a Firefox add-on & an Internet Explorer add-on.