Common Ninja is a platform that provides a variety of customizable widgets designed to enhance websites without requiring any coding skills. The platform offers tools that help website owners improve their site's functionality and aesthetics by incorporating features such as reviews, forms, social feeds, galleries, and more. These widgets are compatible with various website builders and content management systems, making it easy for users to integrate them into their existing sites. Common Ninja aims to simplify the process of enhancing website capabilities to improve user engagement and overall website performance.