A web application is an interactive program that runs on a web server and is accessed through a web browser. A web app is built so that the user interface provides data back to the development team that designed it.

This data offers insights into customer interests, usage, and preferences that can prove invaluable to product and marketing strategies. The data can also inform optimization and other client-centered aspects of the mobile app or desktop applications.

Web application development is the creation of application programs that reside on remote servers and are delivered to the user's device over the Internet. A web application (web app) does not need to be downloaded and is instead accessed through a network.

Web applications include online forms, shopping carts, word processors, spreadsheets, video and photo editing, file conversion, file scanning, and email programs such as Gmail, Yahoo and AOL. Popular applications include Google Apps and Microsoft 365.

Users can access a Web application through a web browser such as Google Chrome, Mozilla Firefox or Safari.

Web applications run on multiple platforms regardless of OS or device as long as the browser is compatible.