Photo Side-by-Side is a free and multilingual software that allows users to compare and make assessments of photos by displaying them side by side. The software has zoom capabilities and supports viewing of any image format.

With Photo Side-by-Side, you can easily zoom both images in parallel or overlay them to quickly spot the differences between them. Additionally, you can measure the actual distance between any two points of the image to gain more insight.
This app has a wide range of uses, including for doctors to compare two patient images and evaluate the progress of a disease, for engineers to identify how an object has changed over time, and for other scientists and everyone else who wants to compare two photos side by side.
The best part? Photo Side-by-Side is completely free, very simple to use, and multilingual. So why wait? Download Photo Side-by-Side today to start comparing your photos in a whole new way!
Version 3.6:
Fixed bug : Zoom into Selection
Fixed bug : Fixed many GUI bugs
Fixed bug : Save / Save as Image
New Feature : GUI Improvements
New Feature : Previous View
New Feature : Import Actual Size Zoom Factor from Image
New Feature : Vertical and Horizontal Mouse Wheel Scroll supp