What is SharePoint Framework Client Side SharePoint Development using SharePoint Framework (SPFx). The SharePoint Framework (SPFx) development is a great milestone for SharePoint Client Side development. It is a page and web part model. This provides full support for client-side SharePoint development. It allows to easily integrate component with SharePoint data and supports for open source tooling. With SharePoint Framework, you can use any of your preferred web technologies and tools in your preferred development environment. It is to build responsive and mobile friendly SharePoint products and apps. SharePoint Framework (SPFx) helps to build custom user interface extensions on top of SharePoint Online in supportive and future prepared way as SharePoint Online keeps itself updated time to time. Create new web part project You need to perform following steps: 1. Create new project directory at your opted location md helloworld-webpart 2.