iaito is the official graphical interface for radare2, a libre reverse engineering framework. Based on radare2 and Qt-5/6. Iaito was the original name before being forked as Cutter. Use all your favourite r2 plugins and scripts (nothing is specific to iaito). Focus on simplicity, parity with commands, features, keybindings. Forensics, bindiffing, binary patching... not just a static disassembler.
Krita is a professional FREE and open source painting program. It is made by artists that want to see affordable art tools for everyone. Has an intuitive user interface that stays out of your way. The docks and panels can be moved and customized for your specific workflow. Once you have your setup, you can save it as your own workspace. You can also create your own shortcuts for commonly used tools. Over 100 professionally made brushes, stabilizers for them in case your hand isn't the steadiest, built-in vector drawing tools, customizable and constructable brushes, wrap-around mode for seamless textures, and a resource manager to import and export tools and packs from other users.
Supports 2d animation. Multiple layers and audio support, thousands of frames on the video timeline, onion skinning for tweening, drag-and-drop of frames, shortcuts, and performance tweaking.
Source code: https://invent.kde.org/graphics/krita
The TDE project began as a continuation of the K Desktop Environment (KDE) version 3. The name Trinity was chosen partly because the word means "three" and TDE was a continuation of KDE 3. TDE now is its own computer desktop environment project. Equipped with a suitable collection of desktop effects that remain compatible with older hardware. Responsive on older hardware, while also being compatible with newer hardware. Compatible with, but not requiring, 3D acceleration (unlike KDE Plasma). Compatible with freedesktop.org and Linux file system hierarchy standards. Compatible with other desktop environments.
RSS: https://www.trinitydesktop.org/rss.php
Looks like there's a third party Arch package repository for TDE: https://wiki.trinitydesktop.org/Arch_Trinity_Repository_Installation_Instructions
qutebrowser is a keyboard-focused browser with a minimal GUI. It’s based on Python and Qt and free software, licensed under the GPL. It was inspired by other browsers/addons like dwb and Vimperator/Pentadactyl. Supports adblocking if the python-adblock module is available
Uses QtWebEngine for rendering, which is built on top of Chromium. There's no escaping it.
The Ladybird Web Browser is a browser using the SerenityOS LibWeb engine with a Qt GUI. Qt6 development packages and a c++20-enabled compiler are required (gcc-11 or clang-13 at a minimum).
Not another Chromium reskin or Webkit wrapper. This is a from-scratch project.
Github: https://github.com/LadybirdBrowser/ladybird
Build instructions: https://github.com/LadybirdBrowser/ladybird/blob/master/Documentation/BuildInstructionsLadybird.md
Qt based GUI tool designed to create and edit .torrent files. Generates a magnet link at the same time.
Ripcord is a desktop chat client for group-centric services like Slack and Discord. It provides a traditional compact desktop interface designed for power users. It's not built on top of web browser technology: it responds quickly to input, sips gently from computer resources, and gets out of your way. It does voice chat, too.
Number one feature: "Not made from a web browser."
An application that lets any laptop act as a DJ console. With it, you can mix audio files in many formats.