Photobucket is a free photo sharing website that allows users to upload, edit, organize and share photos and videos with others through email or social media links. It offers basic free features like photo uploads and sharing, or users can upgrade to Photobucket Pro which provides unlimited storage, longer video uploads, and custom photo album URLs. Photobucket supports uploading from computers and mobile devices, and has apps for iPhone and Android to edit and share on the go without a computer.