6. Picnik - When it comes to online photo editing, Picnik has got to be among the best featured tools, not only on Facebook but on other photo sharing sites as well. For its Facebook app, Picnik lets you do auto-fix, rotate, crop, resize, exposure, adjust color, sharpen photos and fix red-eye problems. You can also add text with various effects, fonts and shapes. Of course, after enhancing and doing all this fun stuff to your Facebook photos, you can show them off to your Facebook friends.
7. Sketch Me - Want to transform your profile photo into a cool-looking pencil sketch? This Facebook app will help you do that. It's so easy to use. In fact, you don't have to do anything but install the app on your Facebook profile and it will automatically convert your profile picture into a pencil sketch.
8. Fotoflexer - This Facebook app lets you edit your photos and images using advanced technology that provides functions similar to paid software. The app lets you do so many things with your Facebook photos. Specifically, it lets you decorate your photos with free shapes, fonts, speech bubbles, create greeting cards, and share photos with friends. As a photo editor, Fotoflexer lets you crop, rotate, draw, resize, correct colors, enhance exposure, fix red-eye, flip, and resize your photos. It also allows you to change your skin color and maintain texture, and even enlarge your muscles or shrink your waist.
9. Picture Mosaic - Of course, there has got to be a photo mosaic maker on our list. What can Picture Mosaic do? Simply turn your photos into mosaics which you can share with your friends or post on your Facebook wall.
10. Photo Collage - There are many photo collage applications on Facebook but this one has the most number of active users. It's a simple Facebook app that lets you create a photo collage of you and your friends. You can post the photo collage on your wall or share it with your friends.
