Reverse image search is a technology that allows users to find information about an image by uploading it or providing its URL. Instead of searching with text, users can input an image to discover similar images, identify objects, or find the original source. This tool is useful for verifying the authenticity of images, finding higher resolutions, or discovering the context behind a photo. Popular platforms for reverse image search include Google Images, TinEye, and Bing. These services analyze the uploaded image and return results that may include visually similar images, web pages containing the image, or related content.