There is a program online called PicMonkey, and it is a free editing webpage. They also have a paid version, if you really get into doing stuff with your photos, but the free one will do most of the basic things, and you can brighten up, and enhance the colors on your picture, as well as crop it to where it look the best, and even put it on a frame of you want.
You can blur the background, and make the focal point stand out, things that will really make your photos look great.