I’m always on the lookout for free software that works well. This free JPEG photo editor is one of the best I’ve found for simple editing, at any price.
Faststone does all the basic stuff: brightness/contrast, saturation/hue, sharpness/blur, plus the usual resizing, rotating, etc. However, it’s strong point, like the name implies, IT’S FAST. With my old computer this makes all the difference. Files load and save in about half the time as Photoshop, Irfanview or any mfgs pgm I’ve tried. I whiz through files when reviewing what to keep and toss out. Also, images can be edited full screen instead of a small window, and basic EIXF data is shown. Unless you need the tools of Photoshop, you might like this. Unfortunately, it will not process RAW files.