Disclosed are various examples for selective screen sharing. In one example, a computing device determines an area to obscure within a video stream using screen-sharing data. The video stream is generated by applying a transformation to a screen capture. The transformation obscures the area within the video stream. The video stream is transmitted to a destination device. A user-specified modification to the area is obtained. The video stream is updated by applying an updated transformation to the screen capture that obscures the updated area within the video stream.