When comparing Greenshot (for Windows) vs Snagit, the Slant community recommends Greenshot (for Windows) for most people. In the question“What are the best screen capture tools for Windows?” Greenshot (for Windows) is ranked 2nd while Snagit is ranked 4th. The most important reason people chose Greenshot (for Windows) is:
Greenshot is licensed under GPL with source code available on [BitBucket](https://bitbucket.org/greenshot/greenshot).
Ranked in these QuestionsQuestion Ranking
Pro Free and open source
Greenshot is licensed under GPL with source code available on BitBucket.
Pro Can capture an entire webpage
Instead of just capturing the visible portion of the page, this tool can capture all of the page in one image by scrolling through the page, taking images at set points and then stitching the images together.
Pro Allows annotating, highlighting and obfuscating screenshots
Pro Freezes screen when you capture
When you enter a capture mode, the screen content is preserved as it was when you started capturing.
Pro Can be quickly invoked with the print screen button
Pressing the print screen button will allow you to select the captured area.
Pro Classic UI design makes it easy to use.
Pro Selecting custom rectangle is the default
Easy to use selection tool with a magnifier to select only the part of the screen that you need.
Pro Good markers for setting the capture area
Simple to choose between full-screen, window or a selected area.
Pro Can easily add annotations
The editor allows you to quickly and easily mark and annotate the screen capture.
Pro Includes an image editor
Allows you to adjust the capture, add captions and symbols (arrows, boxes etc).
Pro Can capture screen video
Pro Allows for delayed capture
Allows you to arrange the screen as you want it captured. Things like opening a popup menu, to have it part of the capture.
Pro Integrates with third party services
Google drive, Twitter, Facebook, email etc.
Pro Mobile app for easily moving screenshots from smartphone to Snagit's editor
Con This version only works on Windows, not Linux nor Mac
However, the same author now has a separate version of Greenshot for iOS, which is available (for a small fee) in the Mac App Store at https://itunes.apple.com/us/app/greenshot/id1103915944