Control V - Share the Content of Your Clipboard With a Secret URL
The tool is easy to use and has several options to customize the sharing with your audience. It allows you to add an arrow to the images you want to share, crop them and add text on top of them, add a line, highlight the exact parts of the page, add a background color, and add an image to the image you want to share.
By using the extension you can use it offline, so there is no need to worry about the amount of memory the tool will use and no need to worry about having any kind of access to your network.