Konqueror is a free and open-source web browser and file manager that provides web access and file-viewer functionality for file systems (such as local files, files on a remote FTP server and files in a disk image). It forms a core part of the KDE Software Compilation. Developed by volunteers, Konqueror can run on most Unix-like operating systems. The KDE community licenses and distributes Konqueror under GNU GPL-2.0-or-later.
The name "Konqueror" references 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.
Konqueror first appeared with version 2 of KDE on October 23, 2000. It replaced its predecessor, KFM (KDE file manager). With the release of KDE 4 in 2008, the functionalities of web browser and file manager were separated: Dolphin replaced Konqueror as the default KDE file manager, while the KDE community continues to maintain Konqueror as the default KDE web browser.