LightShot
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. Available also as Firefox addon, Chrome extension and besides Desktop application. The program has short domain https://prnt.sc/g5g1s5 (or long one http://prntscr.com/g5g1s5 inspite, here they're soft options on this screenshot) where you can see all screenshots you've uploaded before.