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Konqueror

Konqueror 20.12.2 on Arch Linux
Developer(s)	KDE
Initial release	14 October 1996; 28 years ago (1996-10-14)
Stable release(s)
21.08.0 / 12 August 2021
Preview release(s) [±]
Repository	invent.kde.org/network/konqueror
Written in	C++ (Qt)
Engines	WebKit, KHTML, Qt WebEngine (Chromium)
Operating system	Unix-like
Available in	Multilingual
Type	Web browser, file browser
License	GPL 2
Website	apps.kde.org/konqueror/

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" echoes a colonization paradigm to reference 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 replaces its predecessor, KFM (KDE file manager). With the release of KDE 4, Dolphin replaced Konqueror as the default KDE file manager, but the KDE community continues to maintain Konqueror as the default KDE web browser.

Major supported protocols

Konqueror can utilize all KIOslaves installed on the user's system. Some examples include:

• FTP and SFTP/SSH browser
• Samba (Microsoft file-sharing) browser
• HTTP browser
• IMAP mail client
• ISO (CD image) viewer
• VNC viewer

A complete list is available in the KDE Info Center's Protocols section.

User interface

Konqueror supports tabbed document interface and Split views, wherein a window can contain multiple documents in tabs. Multiple document interfaces are not supported, however it is possible to recursively divide a window to view multiple documents simultaneously, or simply open another window.

Konqueror's user interface is somewhat reminiscent of Microsoft's Internet Explorer, though it is more customizable. It works extensively with "panels", which can be rearranged or added. For example, one could have an Internet bookmarks panel on the left side of the browser window, and by clicking a bookmark, the respective web page would be viewed in the larger panel to the right. Alternatively, one could display a hierarchical list of folders in one panel and the content of the selected folder in another. Panels are quite flexible and can even include, among other KParts (components), a console window, a text editor, a media player. Panel configurations can be saved, and there are some default configurations. (For example, "Midnight Commander" displays a screen split into two panels, where each one contains a folder, Web site, or file view.)

Navigation functions (back, forward, history, etc.) are available during all operations. Most keyboard shortcuts can be remapped using a graphical configuration, and navigation can be conducted through an assignment of letters to nodes on the active file by pressing the control key. The address bar has extensive autocompletion support for local directories, past URLs, and past search terms.

Web browser

Konqueror has been developed as an autonomous web browser project. It uses KHTML as its browser engine, which is compliant with HTML and supports JavaScript, Java applets, CSS, SSL, and other relevant open standards. An alternative layout engine, kwebkitpart, is available from the Extragear.

While KHTML is the default web-rendering engine, Konqueror is a modular application and other rendering engines are available. Especially the WebKitPart that uses the KHTML-derived WebKit engine has seen a lot of support in the KDE 4 series. One thing to note, is when the KHTML rendering backend is chosen, the user can choose to make a full archive of any given webpage, which is stored in an archive file with the ".war" extension.

Konqueror integrates several customizable search services which can be accessed by entering the service's abbreviation code (for example, gg: for Google, or wp: for Misplaced Pages) followed by the search term(s). One can add their own search service; for instance, to retrieve English Misplaced Pages articles, a shortcut may be added with the URL http://en.wikipedia.org/Special:Search?search=\{@}&go=Go.

KHTML's rendering speed is on par with that of competing browsers, but sites with customized JavaScript are often problematic due to KHTML's much smaller mind- and market-share, resulting in fewer JavaScript features built into the JS engine.

Kubuntu's 10.10 Maverick Meerkat release switched the default browser from Konqueror to rekonq. Kubuntu subsequently switched from rekonq to Firefox, with the release of 14.04 Trusty Tahr.

File manager

Konqueror also allows browsing the local directory hierarchy—either by entering locations in the address bar, or by selecting items in the file browser window. It allows browsing in different views, which differ in their usage of icons and layout. Files can also be executed, viewed, copied, moved, and deleted.

The user can also open an embedded version of Konsole, via KDE's KParts technology, in which they can directly execute shell commands. In addition to the Konsole KPart, Konqueror can also use a Filelight KPart, to view a radial diagram of the user's filesystem.

Although this functionality has not been removed from Konqueror, as of KDE 4, Dolphin has replaced Konqueror as the default file manager. Dolphin can – like Konqueror – divide each window or tab into multiple panes. Konqueror makes more powerful use of this feature, allowing as many vertically and horizontally divided panes as desired. Each can link to different content or even remote locations, so that Konqueror becomes a powerful graphical tool to manage content on multiple servers all in one window, "dragging and dropping" files between locations.

File viewer

Using the KParts object model, Konqueror executes components that are capable of viewing (and sometimes editing) specific filetypes and embeds their client area directly into the Konqueror panel in which the respective files have been opened. This makes it possible to, for example, view an OpenDocument (via Calligra) or PDF document directly within Konqueror. Any application that implements the KParts model correctly can be embedded in this fashion.

KParts can also be used to embed certain types of multimedia content into HTML pages; for example, the KMPlayer KPart enables Konqueror to show embedded video on web pages.

KIO

In addition to browsing files and web sites, Konqueror utilizes KIO plugins to extend its capabilities well beyond those of other browsers and file managers. It uses components of KIO, the KDE I/O plugin system, to access different protocols such as HTTP and FTP (support for these is built-in), WebDAV, SMB (Windows shares), SFTP and FISH (a handy replacement to the latter when the SFTP subsystem is disabled on the remote host).

Similarly, Konqueror can use KIO plugins (called IOslaves) to access ZIP files and other archives, to process ed2k links (edonkey/emule), or even to browse audio CDs, ("audiocd:/") and rip them via drag-and-drop. Likewise, the "man:" and "info:" IOslaves can be used to fetch man and info formatted documentation.

Konqueror Embedded

An embedded systems version, Konqueror Embedded is available. Unlike the full version of Konqueror, Embedded Konqueror is purely a web browser. It does not require KDE or even the X window system. A single static library, it is designed to be as small as possible, while providing all necessary functions of a web browser, such as support for HTML 4, CSS, JavaScript, cookies, and SSL.

Download Manager

KGet

KGet on KDE Plasma 5.10.5, showing an ongoing download
Initial release	May 26, 2002; 22 years ago (2002-05-26)
Stable release	20.12.3 / March 4, 2021; 3 years ago (2021-03-04)
Repository	invent.kde.org/network/kget
Engine	WebKit KHTML
Type	Download manager
License	GPL-2.0-or-later
Website	apps.kde.org/en/kget

KGet is a free download manager for KDE and is the default download manager for Konqueror. It is part of the KDE Network package. By default it is the download manager used for Konqueror, but can also be used with Mozilla Firefox and rekonq. KGet was featured by Tux Magazine and Free Software Magazine.

History

On KDE 3, KGet 0.8.x, 1 supported HTTP/FTP download. On KDE Software Compilation 4, KGet 2 was released; it supported bandwidth throttling segmentation, multi-threading, and the BitTorrent protocol.

Features

• Downloading files from FTP, HTTP(S) and BitTorrent sources.
• Pausing and resuming of downloading files, as well as the ability to restart a download.
• Gives of information about current and pending downloads.
• Embedding into system tray of the host system.
• Integration with the KDE Konqueror and Rekonq web browsers.
• Metalink support which contain multiple URLs for downloads, along with checksums and other information.
• Automatically tags downloaded files with download information (such as the download URL) using Nepomuk.
• Download from multiple servers to speed up download time (segmented file transfer).

See also

• Comparison of file managers
• Comparison of web browsers
• KHTML
• KJS
• Konqueror Embedded
• KSVG
• List of web browsers
• rekonq
• KIO

References

1. Ettrich, Matthias (14 October 1996). "New Project: Kool Desktop Environment (KDE)". Newsgroup: de.comp.os.linux.misc. Usenet: 53tkvv$b4j@newsserv.zdv.uni-tuebingen.de. Retrieved 2006-12-29.
2. "Konqueror - KDE Applications". apps.kde.org. Retrieved 2021-08-06.
3. Compare: "Konqueror FAQ". konqueror.org. Retrieved 2017-08-23. Where does the name Konqueror come from? It's a word play on the other browsers' names. After the Navigator and the Explorer comes the Conqueror; it's spelled with a K to show that it's part of KDE. The name change also moves away from "kfm" (the KDE file manager, Konqueror's predecessor) which represented only file management.
4. K Desktop Environment (KDE) Archived 2007-06-09 at the Wayback Machine
5. K Desktop Environment - KDE 2.0 Release Announcement
6. "Konqueror - Konqueror FAQ". Archived from the original on 2008-07-23. Retrieved 2008-03-04.
7. "Projects/WebKit/Part - KDE TechBase". KDE TechBase. Retrieved 2010-03-30.
8. Laishram, Ricky. "Rekonq To Be The Default Web Browser In Kubuntu 10.10". Techie Buzz. Retrieved 7 May 2011.
9. "Kubuntu 14.04 LTS". Kubuntu.org. Archived from the original on 11 November 2014. Retrieved 9 December 2014.
10. "KGET Advanced Download Manage". SourceForge. Retrieved 2012-12-14.
11. Upfold, Peter (July 23, 2008). "Using KGet Download Manager with Firefox". FOSSwire. Archived from the original on February 11, 2009. Retrieved September 26, 2018.
12. "Simplify Downloads With Kget". TUX Magazine. 2005-03-29. Archived from the original on 2008-09-07. Retrieved 2012-12-14.
13. ^ Richmond, Gary (2007-10-08). "Managing and configuring downloads with KGet". Free Software Magazine. Archived from the original on 2012-11-12. Retrieved 2012-12-14.
14. Marinof, Mihai (9 October 2006). "KGet Review". Softpedia. Retrieved 2012-12-14.
15. "'Multi segment KIO' is available by default in KGet".
16. "Question: I want to download 1 file, but open, let's say, 8 connections for that file to a faster download".

External links

• Official website
• Konqueror Embedded homepage

v t e KDE
Software compilation	KDE 1 KDE 2 KDE 3 KDE SC 4 Post-fourth series KDE Plasma 5 KDE Plasma 6 KDE Frameworks KDE Gear
Applications by KDE	Development Cervisia KDevelop KImageMapEditor Umbrello Education Cantor GCompris KAlgebra Kanagram KBibTeX KGeography KHangMan Kig Kiten KLettres KmPlot KStars KTouch KTurtle KWordQuiz LabPlot Marble RKWard Step Graphics digiKam Gwenview Karbon KColorEdit KolourPaint KPhotoAlbum Krita Spectacle Skanlite Internet Angelfish Falkon KGet Konqueror Kontact Konversation Kopete KTorrent Multimedia Amarok Dragon Player JuK K3b Kaffeine Kdenlive Office Okular Calligra Suite Words Sheets Stage Flow Karbon Kexi Plan Kile KMyMoney Kontact KPilot Tellico Trojitá System Discover Dolphin KDE Partition Manager KDE System Guard KInfoCenter Konsole Yakuake Utilities Ark Filelight KAlarm Kate KCalc KGPG Klipper Krusader KRename KWallet KWrite KDE Connect Discontinued KOffice KWord Kugar
Platform	User interface Current KDE Plasma 6 KDE Plasma 5 KWin Plasma Mobile Plasma Bigscreen Discontinued KDesktop Kicker SuperKaramba KDE Plasma 4 KSnapshot Oxygen Project Crystal Project Current KWin SDDM (5–) Qt KDE Frameworks 5 (5–) Akonadi Flake KJS KHTML KIO ThreadWeaver KIPI KParts Kross Phonon Solid Sonnet XMLGUI Discontinued KDElibs (–3) DCOP (3) KDE Platform 4 (4) KDM (–4) NEPOMUK (4.13) Strigi freedesktop.org (shared) AppStream D-Bus GStreamer NetworkManager Poppler Wayland X.Org Server PulseAudio
Community	KDE e.V. Akademy Konqi
People	Matthias Kalle Dalheimer Matthias Ettrich Adriaan de Groot Frank Karlitschek Celeste Lyn Paul Nuno Pinheiro Cornelius Schumacher David Vignoni
Category

• 1996 software
• Applications using D-Bus
• Cross-platform web browsers
• Free file managers
• Free web browsers
• KDE Applications
• POSIX web browsers
• Software using the GPL license
• Web browsers that use Qt