• official website

Internet & Networking

• Falkon - QtWebEngine based cross-platform web browser 📌.
• Firefox KDE - Standalone web browser from mozilla.org with OpenSUSE patch, integrate better with KDE.
• GSConnect - A complete implementation of KDE Connect especially for GNOME Shell with Nautilus, Chrome and Firefox integration.
• KGet - A versatile and user-friendly download manager 📌.
• KMail - KMail is the email component of Kontact, the integrated personal information manager from KDE 📌.
• KNetworkManager - A KDE client for the back end NetworkManager software 📌.
• Konqueror - Uses the KHTML rendering engine (and optionally Webkit) so it supports the latest web standards such as HTML5, JavaScript, CSS3, and others 📌.
• Konversation - A user-friendly Internet Relay Chat (IRC) client built on the KDE Platform 📌.
• KRDC - A client application that allows you to view or control a desktop session on another machine that is running a compatible server (VNC & RDP) 📌.
• KTorrent - A BitTorrent application which allows you to download files using the BitTorrent protocol 📌.
• Otter Browser - Otter Browser aims to recreate the best aspects of the classic Opera (12.x) UI using Qt5.
• Plasma-browser-integration - A suite of new features which make [Firefox](https://addons.mozilla.org/en-US/firefox/addon/plasma-integration/), [Chrome](https://chrome.google.com/webstore/detail/plasma-integration/cimiefiiaegbelhefglklhhakcgmhkai) and Chromium-based browsers work with your desktop 📌.
• qBittorrent - An advanced BitTorrent client programmed in C++, based on Qt toolkit and libtorrent-rasterbar.
• Qt WebBrowser - Qt WebBrowser is a browser for embedded devices developed using the capabilities of Qt and Qt WebEngine.
• Smb4K - Advanced Network Neighborhood Browser and Samba Share Mounting Utility 📌.
• Konqueror - Uses the KHTML rendering engine (and optionally Webkit) so it supports the latest web standards such as HTML5, JavaScript, CSS3, and others 📌.
• Qt WebBrowser - Qt WebBrowser is a browser for embedded devices developed using the capabilities of Qt and Qt WebEngine.
• Smb4K - Advanced Network Neighborhood Browser and Samba Share Mounting Utility 📌.
• Konqueror - Uses the KHTML rendering engine (and optionally Webkit) so it supports the latest web standards such as HTML5, JavaScript, CSS3, and others 📌.
• NeoChat - Matrix network client for KDE 📌.
• Tokodon - Tokodon is a Mastodon client. It allows you to interact with the Fediverse community 📌.
• Akregator - Enables you to follow news sites, blogs and other RSS/Atom-enabled websites 📌.
• KDE Connect - A project to communicate across all your devices: receive your phone notifications on your desktop computer, control your desktop from your phone, etc 📌.

Graphics & Imaging

• digiKam - Professional Photo Management with the Power of Open Source 📌.
• Gwenview - A fast and easy to use image viewer by KDE 📌.
• KColorChooser - A simple application to select the color from the screen or from a pallete 📌.
• KolourPaint - A simple painting program to quickly create raster images. It is useful as a touch-up tool and simple image editing tasks 📌.
• Krita - Painting tool designed for concept artists, illustrators, matte and texture artists, and the VFX industry 📌.
• Okular - A universal document viewer 📌.
• Spectacle - An application for capturing desktop screenshots 📌.

Multimedia

• Amarok - Amarok is a powerful music player for Linux, Unix and Windows with an intuitive interface 📌.
• Elisa - A music player developed by the KDE community that strives to be simple and nice to use 📌.
• Kdenlive - A non-linear video editor for Linux using the MLT video framework.
• KMix - A sound channel mixer and volume control 📌.
• KWave - A sound editor built on the KDE Frameworks 5 📌.
• SMPlayer - Media player with built-in codecs that can play virtually all video and audio formats.
• Elisa - A music player developed by the KDE community that strives to be simple and nice to use 📌.
• Kdenlive - A non-linear video editor for Linux using the MLT video framework.
• Haruna - Open source video player built with Qt/QML and libmpv 📌.
• VLC - A free and open source cross-platform multimedia player and framework that plays most multimedia files, and various streaming protocols.

Office & Productivity

• Calligra - Includes efficient and capable office components 📌.
• Kate - A multi-document, multi-view text editor by KDE 📌.
• Kronometer
• KWrite - A text editor by KDE, based on the KDE Frameworks editor component 📌.
• RSI Break - RSIBreak can be used to remind you to take a break now and then 📌.
• Calligra - Includes efficient and capable office components 📌.
• GhostWriter - No distraction markdown editor 📌.

System Administration

• Discover - Intended for users and distros where the terminal isn't the optimal solution for installation of apps and add-ons or updates 📌.
• KSystemLog - A system log viewer tool 📌.
• Sweeper - Sweeper helps to clean unwanted traces the user leaves on the system and to regain disk space removing unused temporary files 📌.
• Yakuake - A drop-down terminal emulator based on KDE's Konsole technology 📌.
• Dolphin - File manager included in the KDE desktop 📌.
• KDiskFree - Displays the available file devices (hard drive partitions, drives, etc.) along with information on their capacity, free space, type and mount point 📌.
• KInfoCenter - A utility that provides detailed information about a computer system 📌.
• Konsole - Terminal emulator included in the KDE desktop 📌.
• Krusader - An advanced twin panel (commander style) file manager for KDE 📌.
• Kup - A backup scheduler for KDE's Plasma desktop 📌.

Utilities & Tools

• Ark - Archiving Tool 📌.
• KDE Wallet Manager - Manage the passwords on KDE systems. The KDE wallet subsystem allows access and password management of every application that integrates with the KDE wallet 📌.
• KeePassXC - Cross-platform community-driven port of Keepass password manager.
• KFind - A standalone search tool, launched by KRunner or from your menu. It is also integrated into Konqueror as "Find File" in the "Tools" menu 📌.
• KRename - A utility to rename multiple files 📌.
• QtPass - A multi-platform GUI for [pass](https://www.passwordstore.org/).
• Yin-Yang - Auto Night-mode for Linux.
• Android File Transfer - Reliable MTP client with minimalistic UI.
• fancontrol-gui - GUI for fancontrol which is part of lm_sensors.
• KDE Wallet Manager - Manage the passwords on KDE systems. The KDE wallet subsystem allows access and password management of every application that integrates with the KDE wallet 📌.
• KWin-lowlatency - An attempt to reduce latency and stuttering in the popular KWin compositor used in KDE.
• KWinFT - Wayland compositor and X11 window manager.
• Wacom GUI - Python/PyQt Wacom GUI for KDE.
• Yin-Yang - Auto Night-mode for Linux.
• QOwnNotes - Note taking app with cloud integration, web and mobile support.

Development & Programming

• KDevelop - A cross-platform IDE for C, C++, Python, QML/JavaScript and PHP 📌.
• Kompare - A diff/patch frontend 📌.
• Okteta - Hex Editor 📌.
• Qt Designer - Qt tool for designing and building graphical user interfaces (GUIs) with Qt Widgets.
• Umbrello - UML Modeller is a Unified Modelling Language (UML) diagram program based on KDE Technology 📌.
• KDevelop - A cross-platform IDE for C, C++, Python, QML/JavaScript and PHP 📌.
• Qt Designer - Qt tool for designing and building graphical user interfaces (GUIs) with Qt Widgets.
• Kate - Kate is a Feature-Packed Code Editor with advanced support for LSP, Syntax Highlighting, multi-cursoe and more 📌.
• Umbrello - UML Modeller is a Unified Modelling Language (UML) diagram program based on KDE Technology 📌.

Education

• KTurtle - An educational programming environment that aims to make learning how to program as easy as possible 📌.
• LabPlot - Interactive graphing and analysis of scientific data 📌.

Education

• KDE Store

Plasma desktop

• kcm-wacomtablet - KDE GUI for the Wacom Linux Drivers 📌.
• Breath - Breath Theme for Manjaro Linux (Plasma 5).
• Helium - A translucent theme for Plasma 5.
• Bibata - Material Based Cursor Theme.
• kwin-tiling - Tiling script for kwin.
• kcm-wacomtablet - KDE GUI for the Wacom Linux Drivers 📌.

Plasma desktop

• KDE Wikis - The KDE wikis are a source of information and documentation for the KDE desktop, applications, teams, events and more 📌.
• KDE Invent - Discover KDE projects, groups and snippets 📌.
• KDE Bugtracker - KDE's official Bugtracker 📌.
• ArchWiki - Arch Linux KDE Wiki.
• Gentoo Wiki - Gentoo KDE Wiki.
• KDE Invent - Discover KDE projects, groups and snippets 📌.
• ArchWiki - Arch Linux KDE Wiki.

Plasma desktop

• KDE.news - The official KDE news website 📌.
• Planet KDE - Blogs of KDE contributors 📌.
• Phoronix - Phoronix KDE News Archives.
• Nate Graham's Blog - Adventures in Linux and KDE.
• Nico's Blog - Programmer from Germany that is working on KDE.
• Kai Uwe's Blog - Stories of a Plasma developer.
• Phoronix - Phoronix KDE News Archives.
• Nate Graham's Blog - Adventures in Linux and KDE.

Plasma desktop

• Kreddit - KDE Community on Reddit.
• KDE Store - Official KDE Store for developers to share Plasma customizations 📌.
• Stack Overflow - Questions tagged with `kde`.
• KDE Store - Official KDE Store for developers to share Plasma customizations 📌.
• Stack Overflow - Questions tagged with `kde`.
• KDE Store - Official KDE Store for developers to share Plasma customizations 📌.