Reverse image search is a technique used to find information about an image by using the image itself as the search query. Instead of typing keywords, users upload an image or provide its URL to discover its origins, similar images, or related content. This tool helps in identifying objects, verifying image sources, detecting copyright violations, and uncovering manipulated images. It is widely used by journalists, researchers, and everyday users to obtain accurate information and track the dissemination of visual content across the internet.