Disclosed are examples of systems, apparatus, methods and computer program products for providing components for building web applications within remote systems. A component database for web application components and an application database for web applications can be maintained in a multi-tenant database system. A first request can be processed to provide a web application for use at a remote site associated with a developer. Authorization of the remote site by the multi-tenant database can be determined based on a list of allowed remote sites for web applications. Data associated with the web application can then be sent to the remote site. A second request can be processed to provide a component for use at the remote site, indicating a component location of the remote site. Data associated with the first component can then be sent to the remote site. The data can be capable of causing an instance of the first component to be included at the component location of the remote site.