Browser

The client application that fetches, interprets, and renders content (HTML, CSS, JavaScript) from web servers for user display.

A browser is your primary interface to the World Wide Web, operating on a client-server model: it sends HTTP/HTTPS requests for files and uses a rendering engine to translate the returned data into a visual page. This process involves interpreting HTML structure, applying CSS styles, and executing JavaScript for dynamic functionality. Major players like Google Chrome, Mozilla Firefox, Apple Safari, and Microsoft Edge dominate the market, with Chrome currently holding a significant majority share. The core function remains consistent: transforming raw code into the interactive experience you see on your screen.

https://en.wikipedia.org/wiki/Web_browser