Annotate Screen - Browser based annotation tool.
GitHub Visualizer - Enter user/repo and see the project visually
Hover Me - Hover me lets you quickly annotate any image and easily integrate an interactive version within your own website.
Codeology - Open-source algorithm that visualizes GitHub projects
Roboflow Annotate - Annotate images with ease. Export to any format.
Octohunt - Search to find developers in your city on Github.