You can request a desktop site on your smartphone and proceed that way, but that’s a bit cumbersome. All you can do is search an image with the help of text. Google images’ mobile site doesn’t let you perform reverse image search as there’s no option to upload or provide a link to an image. So, the possibility of finding a match is extremely high. Google Images is completely free to use, there is no limit on file size or file type, and it has the largest number of images indexed. Google images then uses algorithms based on various attributes like shape, size, color and resolution to get the similar pictures. Or you can simply drag and drop the image in search bar. You perform reverse photo search by either uploading an image from your computer or pasting the link of the image in the search bar itself. In June 2011, Google Images introduced a new reverse image search feature. Google images is a widely used website to search for images. Best Reverse Image Search Engines of 2020 1. Google Images If you want to find long lost friends or anyone else for that matter, you will be better served by people search engines which are specifically made for that purpose. Note: Reverse Image Search engines are not meant for finding people.