Greenshot - Greenshot is a free and open source screenshot tool that allows annotation and highlighting using the built-in image editor.
GitHub - Originally founded as a project to simplify sharing code, GitHub has grown into an application used by over a million people to store over two million code repositories, making GitHub the largest code host in the world.
ShareX - ShareX is a free and open source program that lets you capture or record any area of your screen...
GitLab - Create, review and deploy code together with GitLab open source git repo management software | GitLab
LightShot - The fastest way to take a customizable screenshot.
BitBucket - Bitbucket is a free code hosting site for Mercurial and Git. Manage your development with a hosted wiki, issue tracker and source code.