There are several free programs available for removing white background from a black and white photo. Some of the most popular options include remove.bg, Instant Background Remover, Photoroom, Adobe Express, and Fotor. These programs use advanced algorithms to automatically remove the white background from your image, allowing you to easily isolate the subject and use it in a variety of different ways. In most cases, all you need to do is upload your image to the program, and it will automatically remove the background for you. Some programs also offer additional tools and features, such as the ability to customize the background or add special effects to your image. Overall, the best program for removing white background from a black and white photo will depend on your specific needs and preferences. It's a good idea to try out a few different options to see which one works best for you.