Konqueror is a web browser and file manager that provides file-viewer functionality to a wide variety of things: local files, files on a remote ftp server and files in a disk image. It is designed as a core part of the KDE desktop environment. It is developed by volunteers and can run on most Unix-like operating systems and on Windows systems too.
The name "Konqueror" is a reference to the two primary competitors at the time of the browser's first release: "first comes the Navigator, then Explorer, and then the Konqueror". It also follows the KDE naming convention: the names of most KDE programs begin with the letter K.