RBCommons is a web-based code review service designed to streamline the review process for software development teams. It is built on the open-source Review Board platform and offers a range of features to facilitate collaborative code reviews, including diff viewing, comment tracking, and integration with various version control systems like Git, Mercurial, and Subversion. RBCommons provides a user-friendly interface and customizable workflows to accommodate different team structures and project needs. It is suitable for both small teams and larger enterprises looking to enhance their code quality through thorough and efficient review processes.