If you're like me and love adding simple filters to pictures without having to use any hardcore editing software, Pixlr-O-Matic may be one of the best options out there. It's one of my favourite photo editing apps on Android and iOS. Pixlr-O-Matic have also got a web version of their app so you can edit pictures right in your web browser, no having to download apps or programs.
From the start screen you can take a pic from your webcam, upload from your computer or use one of their samples to try out the photo editing options.
I chose one of their samples. The image above is the original. Amazing picture may I say. The picture gets put on a nice UI to make the experience a bit more fun. You have a film strip underneath from which you can choose, filters, borders and other types of camera effects. You can even add more filters and effects from the collection they have.
After playing around with some filters and effects I got the result above. Looks a lot more dramatic. I added the "Ian" filter and then added some vignetting around the sides. Simple things like that can really change the expression a picture gives off.
Once you're happy with the result you can download it straight to your PC.
This web app is great for anyone who just wants to do some simple editing to their pictures. It's great for beginners and has a simple UI great for navigating around.