Mosaic is a World Wide Web browser that provides a user-friendly graphical interface to nearly all of the information servers on the Internet.

It allows images to be displayed inside a document, formatted text to be displayed in a variety of sizes and styles, and connections to other documents through hotlinks. It is capable of accessing nearly every document publicly available on the Internet.

Mosaic can also be configured to automatically launch other programs which are able to display information in formats Mosaic itself is not capable of handling.