When comparing Greenshot (for Windows) vs Process Hacker, the Slant community recommends Process Hacker for most people. In the question“What are the best power user tools for Windows?” Process Hacker is ranked 6th while Greenshot (for Windows) is ranked 17th.
Ranked in these QuestionsQuestion Ranking
Pro Free and open source
Greenshot is licensed under GPL with source code available on BitBucket.
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 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 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 Real-time information on disk access
Pro Can be set as your default task manager
Pro 10x more detail and information about usage of PC resources and processes
Pro Detailed overview of system activity with highlighting
Pro See programs with active network connections
Pro Can create, edit and control services
Pro Can track which processes are using a file
Pro Open source
You can find the code here.
Pro View detailed stack traces with kernel-mode
Supports WOW64 and .NET.
Pro Graphs and statistics to quickly track down resource hogs and runaway processes
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