Instagram is a popular mobile photo & video sharing service that was launched in October 2010. There are so many free online photo editors are available online which allows you to apply filters & effects to your photos. Instagram is a best way to enhance your ordinary photos online. It allows you to take a photo, crop, edit, apply digital filters and effects to your photos. Once you have taken a photo or selected one from your phone's photo album / gallery, you can edit it by applying effects. Instagram offers you an array of 10 photo effects to choose from. Some of the photo effects are listed below.