A web application framework, or simply web framework is a software framework that helps developers create web applications such as web services, web resources, and web APIs. Online frameworks are a set of guidelines for creating and deploying web applications on the Internet. Web frameworks are designed to reduce the overhead associated with standard web development tasks. Many web frameworks, for example, provide libraries for database access, templating frameworks, and session management, as well as code reuse. Although they are frequently used to create dynamic websites, they can also be used to create static webpages.
Templating capabilities for presenting information within a browser, a programming environment for scripting the flow of information, and application programming interfaces (APIs) for accessing underlying data resources are all part of such a framework. The framework also provides software developers with the foundations and system-level services they need to create a content management system (CMS) for managing digital information on the Web. The framework can be used by developers to define ‘out-of-the-box’ content management, user authentication, and administrative tools.
Reference: https://searchcontentmanagement.techtarget.com/definition/web-development-framework-WDF