Free Greenshot Alternatives for Windows
There are many alternatives to Greenshot for Windows if you are looking to replace it. The most popular Windows alternative is 
ShareX, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 100 alternatives to Greenshot and loads of them are available for Windows so hopefully you can find a suitable replacement. Other interesting Windows alternatives to Greenshot are 
Flameshot (Free, Open Source), 
LightShot (Free), 
Snagit (Paid) and 
PicPick (Free Personal).
- ShareX is a free and open source program that lets you capture or record any area of your screen and share it with a single press of a key. It also allows uploading images, text or other types of files to over 80 supported destinations.
- Powerful yet simple to use free and opensource screenshot software for Linux and Windows.
- Lightshot - easy screenshot tool, is screen capture tool for Windows and Mac platforms, with the added advantage of automatically uploading it online for sharing or editing.
- A full-featured screen capture tool, Intuitive image editor, color picker, color palette, pixel-ruler, protractor, crosshair, whiteboard and more.
- You can use Snipping Tool to capture a screen shot, or snip, of any object on your screen, and then annotate, save, or share the image.
- Ksnip is a Qt based cross-platform screenshot tool that provides many annotation features for your screenshots.
- Flamory remembers things, so you don't have to. Make snapshots of web pages, files and desktop apps. You can find snapshots later using full-text search and thumbnails.
- Screenshot Editing and Video Screen Capture Software for Windows and Mac.
- Screenshot and screencast tool that allows for full-screen, window or region-based captures.
- Imagine is an Image & Animation Viewer for Windows with screen capture function.