ShareX - ShareX is a free and open source program that lets you capture or record any area of your screen...
SingleFile - Save a complete page into a single HTML file
ScreenToGif - This tool allows you to record a selected area of your screen and save as a animated gif.
Snagit - Screen Capture Software for Windows and Mac
recordit.co - Make a short video capture of your desktop as a gif.
Paparazzi! - Paparazzi! is a small utility for Mac OS X that makes screenshots of webpages.