Instagram (portmanteau of "instant camera" and "telegram") is an online photo-sharing, video-sharing and social networking service that enables its users to apply digital filters to their photos and videos, and share them on a variety of social networking services, such as Facebook, Twitter, Tumblr and Flickr.

Instagram began development in San Francisco when Kevin Systrom and Brazilian Michel Krieger chose to focus their multi-featured HTML5 check-in project Burbn on mobile photography.