Marker.io for Slack - Turn screenshots into Slack messages ✌️
Clerk Chat - SMS for Slack
Glui - glui - GLUI is a GLUT-based C++ user interface library which provides controls such as buttons, checkboxes, radio buttons, and spinners to OpenGL applications. It is window-system independent, using GLUT or FreeGLUT.
Ray.so - Create beautiful images of your code
Instashot - Access text from any image instantly.
Codeimg.io - Create and share images of your source code