How can I compress photo file size to 50kb in Windows 10?

Trying to compress photo file size to 50KB using the Windows Photos app is... kind of a guessing game. It's definitely doable and totally free.

Basically, you just open your picture in Photos, click the little "..." menu up top, and hit "Resize". It'll give you a few preset sizes, or you can go with "Define custom dimensions" to set your own pixel width and height.

The big "gotcha" is that Photos doesn't have a quality slider to let you fine-tune the file size. You're just messing with the dimensions, hoping the file gets smaller. The app does show you a preview of what the new file size will be, which is super helpful. So you can try making it smaller and smaller until you see that number drop down near 50 KB.

If the initial photo is already relatively small, you might be lucky and manage to reduce the file size to 50KB with just one or two attempts. However, if the photo is extremely large, you may need to shrink it to an extremely small thumbnail size to reach the goal. In this case, it becomes a process of repeated trial and error - adjusting the size, saving, checking, and repeating.