A web application is interactive software delivered over the web and executed primarily within a browser, combining client-side code with server-side services accessed over HTTP. It renders user interfaces, manages state, and communicates with back-end APIs to provide functionality comparable to native applications without installation. Web applications rely on open web standards for portability across devices and platforms.
Overview
- Web applications run in the browser and synchronise state with server-side services.
- They use open standards so the same code runs across operating systems and devices.
- Modern architectures split a rich client front-end from API-driven back-ends.
- They eliminate install friction at the cost of network dependence and browser constraints.
Key aspects
- Client-side rendering and state management deliver responsive interactivity.
- HTTP and REST APIs decouple the front-end from server-side business logic.
- Open web standards ensure cross-platform portability without per-device builds.
- Progressive enhancement and caching mitigate network variability.
Applications
- Software-as-a-service products delivered entirely through the browser.
- Collaborative editing and real-time dashboards.
- E-commerce and content platforms reaching any connected device.
- Internal enterprise tools deployed without client installation.