A web application is software that runs in a browser, allowing users to access and interact with digital services without installation. Web apps operate on remote servers and function across different devices.

The main types of web applications include Content Management Systems (CMS), Progressive Web Applications (PWA), and Single-Page Applications (SPA). A CMS allows users to create, edit, and manage digital content without coding. A PWA combines website and mobile app features, offering offline access and fast loading. An SPA loads a single page and updates content dynamically without refreshing, improving user experience.

The most popular web application types are Progressive Web Applications (PWA) and Single-Page Applications (SPA). PWAs enable offline access and fast performance, while SPAs load a single page and update content dynamically.