FreeCAD is a general purpose parametric 3D CAD modeler based on the OpenCASCADE geometry kernel. It's written in Python and its GUI utilizes Qt. It provides a modular plugin architecture and extensibility via macros and scripts, but already comes with a wide range of 2D and 3D property editing tools and transformation filters, simulation and rendering backends. Various export formats include STEP, IGES, OBJ, STL, DXF, SVG, STL, DAE, IFC or OFF, NASTRAN, VRML, DWG, and the native FCSTD files.
MathMod is a portable interactive plotting and graphing program for Windows, Linux, MacOSX and many other platforms. MathMod allows to plot 3D mathematical surfaces, described by implicit or parametric equations, and offers a very large database of model samples that can be generated with it. It's Free and Open Source under the terms of the GPL licence version 2 or later.
Shotcut is a free, open source, cross-platform video editor for Windows, Mac and Linux. Major features include support for a wide range of formats; no import required meaning native timeline editing; Blackmagic Design support for input and preview monitoring; and resolution support to 4k.
iQPuzzle is a diverting I.Q. challenging pentomino puzzle. Pentominos are used as puzzle pieces and more than 300 different board shapes are available, which have to be filled with them.
TEA is powerful text editor that provides hundreds of text processing functions. It supports QML plugins and external scripts. TEA can open plain text files, FB2, ODT, RTF, DOCX, Abiword, KWord KWD, SWX, PDF, DJVU. Other features: Built-in MC-like file manager. Spellchecker (using the aspell or/and Hunspell). Tabbed layout engine. Syntax highlighting for C, C++, Bash script, BASIC, C#, D, Fortran, Java, LilyPond, Lout, Lua, NASM, NSIS, Pascal, Perl, PHP, PO (gettext), Python, Seed7, TeX/LaTeX,
Qtractor is an Audio/MIDI multi-track sequencer application written in C++ with the Qt framework. Target platform is Linux, where the Jack Audio Connection Kit (JACK) for audio, and the Advanced Linux Sound Architecture (ALSA) for MIDI, are the main infrastructures to evolve as a fairly-featured Linux desktop audio workstation GUI, specially dedicated to the personal home-studio.
OpenShot Video Editor is a free, open-source video editor for Linux. OpenShot can take your videos, photos, and music files and help you create the film you have always dreamed of. Easily add sub-titles, transitions, and effects, and then export your film to DVD, YouTube, Vimeo, Xbox 360, and many other common formats.
QXGEdit is a Qt4 GUI for editing MIDI system exclusive files. It works with XG devices such as Yamaha DB50XG. It requires a configured ALSA system.
BeeBEEP is a secure networking chat. It allows simple chat-style instant messaging, group chats, friend lists, and exchanging files. It works in any intranet environment, or through public networks.
LibreCAD is a cross-platform 2D Computer-Aided-Drawing application derived from QCad, and extends it with CAM functionality. It supports DXF, LFF, CXF, and JWW files, can export to common bitmap graphics formats and SVG.
Graphical counterpart to tabview, a simple tabular data viewer that can be used both stand-alone and as a Python module for various files and Python/Pandas/NumPy data structures.
Veusz is a scientific plotting package, designed to create publication-ready Postscript, PDF, or SVG output. It features an easy to use graphical interface as well as a command line interface and can be scripted or embedded in Python scripts. Graphs are constructed in a modular fashion from separate components. Datasets can be interactively modified or created from within the program.
Mixxx is an audio mixing / turntable software for DJs. It provides a dual-deck interface, easy drag and drop. It's GUI has various wave transformation controls, beat and cue points, and full waveform previews, vinyl emulation, sample stretching, single click looping, quad sampler decks, MIDI controls. It also helps organazing playlists, with BPM detection, an auto DJ feature, recording, replaygain normalization, and even ICY broadcasting.
Krita is a free and open source painting tool designed for concept artists, illustrators, matte and texture artists, and the VFX industry.
Rolisteam helps you to manage a tabletop role playing game with remote friends/players. It provides many features to share maps, pictures and it also includes tool to communicate with your friends/players. The goal is to make Rolisteam-managed RPG games as good as RPG games around your table. To achieve it, we are working hard to provide you more and more features.
Audacious is an open source audio player. A descendant of XMMS, Audacious plays your music how you want it, without stealing away your computer’s resources from other tasks. Drag and drop folders and individual song files, search for artists and albums in your entire music library, or create and edit your own custom playlists. Listen to CD’s or stream music from the Internet. Tweak the sound with the graphical equalizer or experiment with LADSPA effects. Enjoy the modern GTK-themed interface or
DJV Imaging is professional movie playback software intended for film production, visual effects, and computer animation. It's cross-platform for Linux, Max OS X and Windows; plays either image sequences or movies, works with industry-standard formats as OpenEXR, Cineon, DPX, and QuickTime. It also provides command-line tools for batch processing. Also utilizes CMake, FFmpeg, GLEW, libjpeg, libpng, libtiff, libquicktime, OpenEXR, zlib, Qt.
ClickMaster2000 is a simple tally counter for images. You can load images containing objects that need to be counted, click on each one of them, and then read the total without having to keep mental record. ClickMaster2000 is geared for batch, precise counting on dense images where automated recognition is not easily possible. ClickMaster2000 was originally designed for microbiology imagery.
SimpleScreenRecorder is a screen recorder for Linux. Despite the name, this program is actually quite complex. It's 'simple' in the sense that it's easier to use than ffmpeg/avconv or VLC.
QuiteRSS is a desktop news feeds (RSS/Atom) reader with a Qt interface. It's both fast and convenient to use, embeds a WebKit view, allows searching, bookmarking and filtering feed items or users. QuiteRSS also includes ad blocking, proxy support, feed update timers, a tree-grouped feed list, sound and visual notifications, OPML imports, and is fully portable.
This package provides GTK+2.0 style and platform plugins for Qt 5.7 or higher.
A GUI for youtube-dl. It implements a friendly GUI for youtube-dl with a simple usage, aimed to avoid typewrite on a terminal to download videos.
Sonic Visualiser is a free, open-source application for Windows, Linux, and Mac, designed to be the first program you reach for when want to study a music recording closely. It's designed for musicologists, archivists, signal-processing researchers, and anyone else looking for a friendly way to look at what lies inside the audio file. Sonic Visualiser is one of a family of four applications from the Centre for Digital Music: Sonic Visualiser itself is the most general, a program for highly con
digiKam is a KDE photo collection manager. It provides streamlined importing and organizing/classifying them into albums or chronologies. Besides allowing custom directory schemes for storage, it also permits plain tagging, indexing and rating. Through KIPI it integrates with other KDE photo management software; but also provides a Light Table tool to pick highest quality shots from a series, or retouch them. A built-in image editor can apply colorization and lightning correction effects.
This program is intended to download audio albums from YouTube. It downloads audio file using youtube-dl and generates Cue Sheet with metadata.
Password management should be simple and follow Unix philosophy. With QtPass, each password lives inside of a gpg encrypted file whose filename is the title of the website or resource that requires the password. These encrypted files can be be organised into meaningful folder hierarchies, which can be shared with teams.
Xpdf is a free and open-source PDF viewer for operating systems supported by the Qt toolkit. Versions prior to 4.00 were written for the X Window System and Motif. Xpdf runs on nearly any Unix-like operating system, but binaries are also available for Windows. Xpdf can decode LZW and read encrypted PDFs. The official version obeys the DRM restrictions of PDF files, which can prevent copying, printing, or converting some PDF files. There are patches that make Xpdf ignore these DRM re
Scribus is a professional typesetting and page layout program, available on all major platforms but also for OS/2 and GNU/Hurd. It provides press-ready PDF output, but a user-friendly and modern interface. It supports color separation, ICC profiles, CMYK and spot colors.
"dl" is a simple file sharing service for quick/one-off file transfers. Upload a file to get a link you can share. Or create a sharing link to receive files from others. The uploaded files are automatically removed when left unused, requiring zero additional maintenance. "dl" is built for your users: easy to use with any browser, integrates smoothly with Thunderbird for large attachments, works on Android, Windows and OSX or straight from the command line for maximum convenience.
Kexi is a visual database applications creator. It can be used for creating database schemas, inserting data, performing queries, and processing data. Forms can be created to provide a custom interface to your data. All database objects - tables, queries and forms - are stored in the database, making it easy to share data and design.
Crosti helps in creating custom cross-stitching schemes from image files / photographs. It supports all common raster and vector images, permits various colorizations and adaptions, resizing and rotating templates, adding lines or circles, and obviously printing them out.
Zeal is an offline documentation browser. It's similar to Dash on OS X, but available cross-platform. It comes with ready-to-download manuals for many scripting and programming languages, frameworks and document standards. Zeal greatly simplifies searching across documentation.
What is it? A nifty little utility for pinning commands, applications or links to the system tray. ExeQt goes even further and provides network facilities so that your custom actions can be transfered, accesed and used from computers around the world or computers around your house. How does it work? ExeQt uses the system's native tray to display groups of actions with the things the user loves most such as their documents, the folder with pictures of cats or that site that lets you see how you
SQLiteStudio is an intuitve SQLite 2.x and 3.x database management tool. It comes ready to use in a single executable, is cross-platform using the Qt toolkit (the previous Tcl/Tk implementation was just as pretty), its interface available in various translations. It allows editing database content and schemes, views and triggers with syntax checks; and can export into various serialization formats, and provides for plugins and scripting capabilities.
QLC+ is a tool to control DMX and analog lighting systems. It can orchestrate moving heads, dimmers, scanners etc. It's a fork of QLC with new features comparable to commercial control systems.
QupZilla is a new and very fast QtWebEngine browser. It aims to be a lightweight web browser available through all major platforms. This project has been originally started only for educational purposes. But from its start, QupZilla has grown into a feature-rich browser. QupZilla has all standard functions you expect from a web browser. It includes bookmarks, history (both also in sidebar) and tabs. Above that, it has by default enabled blocking ads with a built-in AdBlock plugin.
Yarock is a modern looking music player for local playlists and music collections, packed with features, that doesn’t depend on any specific desktop environment and only has minimal dependencies. Yarock is designed to provide an easy and pretty music browser based on cover art.
Qt Creator provides a cross-platform, complete integrated development environment (IDE) for application developers to create applications for multiple desktop, embedded, and mobile device platforms, such as Android and iOS. It is available for Linux, OS X and Windows operating systems.
NitroShare is a simple desktop file sharing application. It automatically discovers peers on the local network, provides speedy transfers, and supports any file type. Furthermore is available on all major platforms.
shufti is a lightweight, PyQt-based image viewer that non-destructively saves and restores the zoom level, rotation, window size, desktop location and viewing area on a per-image/file location basis.
Prebackup is not a backup program, but a tool you use before your actual backup, to better organize your directories and set what will and will not end up in your backup. Usually when you backup your home or a portion of it, many files are included that don't need a backup, especially large files like videos, ISO installation images, installed games, etc. Prebackup lets you fine-tune the list of directories and exclusions in several ways: - Scan a "snapshot" of the directories you want to bac
Trajecstory is a program to plot trajectories of an electron in electric and magnetic fields in three dimensions. For students of Physics, the utility of such a program is immediately obvious, and no further explanation is required. For others, it has no utility, and further explanation is pointless.
LGCK Builder is a development environment for side-scrolling games. It can be used by novices and seasoned developers alike for quick results. Simplicity and reusability of components is a core concept. LGCK runs on Windows/Wine, provides tile-free design, is object-oriented, cross-platform, makes programming optional, allows multiple background image layers.
NeuralStyler Artificial Intelligence converts your videos into art works by using styles of famous artists: Van Gogh,Wassily Kandinsky,Georges Seurat etc Style videos,gif animation and photos, No need to upload videos (Offline processing), Faster AI styling algorithm, Extensible styling system(Plugin)
qStopMotion is a free application for creating stop-motion animation movies. The users will be able to create stop-motions from pictures imported from a camera or from the harddrive and export the animation to different video formats such as mpeg or avi.
FF Multi Converter is a GUI frontend for multimedia and document conversion tools. It utilizes FFmpeg for audio and video format recoding, ImageMagick for graphic files, and UnoConv for all office document formats. It's implemented in Python with Qt4.
CuteMarkEd is a MarkDown editor with live HTML previews, math expressions, and source code and MarkDown syntax highlighting.
Yourik The Intergalactic Rabbit is the animal rights-themed arcade game. Fight your way from the vivisection laboratory and save the animals. You are the genetically modified rabbit, Yourik, the Intergalactic One.
Slouchy is for anyone who wants to work on their posture while at a computer. After a quick setup it will periodically alert you if you start slouching at your computer. It's written in Python and depends on the OpenCV and QT4 libraries.
PostScript is a computer language for creating vector graphics developped by Adobe Systems. Qt is a cross-platform application development framework, widely used for the development of GUI programs. In their latest major version (Qt5) the possibility to export graphics to PostScript was dropped: the QPrinter::PostScriptFormat option was removed. EpsEngine was developped in order to cover this lack and to enable Qt based applications to easily export graphics to the Encapsulated PostScript format
The Enhanced MetaFile format (EMF) is the native vector graphics file format on Windows. Qt is a cross-platform application development framework, widely used for the development of GUI programs. Although it provides tools for almost every aspect of software development, Qt doesn't include a solution for the rendering of the EMF image format. libqemf covers this lack and provides the QEmfRenderer class that enables Qt based applications to easily draw the contents of EMF files onto paint devices
Golden Cheetah is a cycling performance software. It imports ride data downloaded from various devices or exported from other programs, including TrainingPeaks WKO+ and the manufacturers' software for the Ergomo, Garmin, Polar, PowerTap, and SRM devices. It provides a rich set of analysis tools, including a critical power graph, BikeScore calculation, histogram analysis, a best interval finder, and a pedal force versus pedal velocity chart, to name just a few.
Calligra is an integrated suite of applications that cover office, creative, and management needs. It offers applications on both desktop computers and mobile platforms like tablets and smartphones. OpenDocument Format (ODF) is used, making it compatible with OpenOffice.org, LibreOffice, and Microsoft Office. Calligra Suite contains the following applications: Calligra Words (word processor), Sheets (spreadsheets), Stage (presentations), Flow (diagrams and flowcharts), Kexi (visual database crea
Elogviewer provides a convenient browser for "elogs" as used by Gentoos portage system. It's implemented in Python atop Qt4/Qt5.
Play the popular card game Mau Mau (similar to UNO®) against the computer or over the network with your friends. It consists of a highly configurable stand-alone server and a client based on Qt4/5. The client's development is now ceased and in search of a new maintainer, transforming it from a worse and annoying showstopper to a usable and fun to play one. Features: * Play against an unlimited number of tactical playing computer opponents * Play against an unlimited number of human players ov
Pybik is a 3D puzzle game about the cube invented by Ernő Rubik. * Different 3D puzzles - up to 10x10x10: cubes, towers, bricks, tetrahedra and prisms * Solvers for some puzzles * Pretty patterns * Editor for move sequences * Changeable colors and images
Treecle is program for creating, managing and maintaining tree-like heirarchical data. It is a utility for organizing personal or commercial data into one's own tree-like structure. The program has been re-written using the Qt Toolkit.
The Daily Journal is a PIM program that is written using Qt. It manages daily notes, appointments, holidays, contact and to-do lists, and issues alerts before scheduled appointments.
Radium is a modern music editor with a fresh and responsive interface. It provides a better sequencing overview with a widescreen layout. Positions and effects can be edited graphically. It provides for automation of velocity, effects, pitches and tempo; has smooth scrolling, MIDI sequencing, a modular mixer, LADSAP and VST plugins, zooming, microtonality, and an extension language.
Dust Racing 2D is tile-based racing game. It provides AI players and split-screen modes, different tournament modes, and comes with a level editor. It utilizes Qt and OpenGL for smooth graphics.
LightDM is display and login manager for X11/Mir. It's rather lean, integrates with ConsoleKit, PAM or logind. It provides greeter frontends for Gtk, Qt, KDE and a WebKit UI. It also provides remote session (XDMCP, VNC, RDP) connectors.
SMTube is a Youtube video browser and player. It lists categorized or popular and new videos, including descriptions, and can either download MP4s or play them right away. It's part of the SMPlayer group, and derived from UMPlayer.
Fricando is a file system explorer, Qt-based and cross-platform. It provides a traditional two-pane (directories and files) view, searching, a console, and disk usage charts.
Tomahawk is a music player and audio streaming service frontend for desktop usage. It manages songs, albums, playlists, meta info, social sharing. It supports various cloud services and commercial providers, such as Spotify, Beats, Google play, Soundcloud, LastFM, Hype Machine, Echo Nest, Rdio, Grooveshark, Billboard, OwnCloud, iTunes, Jamendo, Deezer, Ampache, Jabber, and Subsonic.
Gambit is a graphical chess game. It's cross-platform and there are binaries for Windows, and build instructions for Linux users.
Kiesse is a Qt implementation of the well-known "Who is it?" game, where each player picks a character for the opponent to guess. Each turn allows to demarcate the character by inquiring appearance properties. Kiesse provides both a 2 player mode, or running against the computer.
Leo is a programmers editor, suitable as IDE, and also provides PIM funtionality. It provides unqiue outlines which are represented in a tree, with view nodes being able to occur multiple times. It's fully scriptable in Python itself, where extensions can access outline data and Leos code directly, export to external files containing outline markup.
Scrabble3D is a versatile Scrabble game, that implements a classic mode, Superscrablle, and 3D games as well as customized boards. It can be played against online opponents or against the computer. Letterset, board and design can be changed, works with OpenGL, provides game statistics, allows time or move-limited matches, is multi-lingual, and provides parental filtering for server games.
qtmib is a SNMP tool to browse MIB/OID values. It's a Qt4 frontend for net-snmp tools, may communicate with any SNMPv1 or v2-enabled device. qtmib contains a large set of predefined MIB mappings, provides network discovery, and generate reports on system, interface, routing table, connections, process, software.
Plasma is the desktop component of KDE. It's shell is modularly designed and can harbour nested applets and widgets besides traditional icon shortcuts. It's based entirely on Qt5 with QML (Qt modeling language), KDE Frameworks 5, and OpenGL rendering.
KMyMoney is a personal finance management and banking application. It's similar in functionality to Quicken, MS Money, or GNUCash. Different account types and accounting schemes are supported, a few wizards and import functionality simplify the initial setup. It supports QIF files, OFX and HCBI banking interfaces.
GRLP is a robust internet radio station stream browser and player for Linux distributions. It comes with a pre-built list of 500 known streaming stations, connects to their audio servers and plays them inline. It also allows to add new ones, or rename and regroup them. It's very customizeable and comes with many fancy window backgrounds and themes.
kchmviewer is a viewer for Windows HTML compressed help (CHM) and Ebook (EPUB) files. It's either buildable as KDE application or standalone Qt program. It has broad support for internationalized charsets and help files.
Drumstick Metronome (kmetronome) is a MIDI-based metronome utilizing the ALSA sequencer. It's intended for students and musicans to aid rythm consistency while playing instruments. It incurs little overhead by using MIDI instead of digital audio playback, which also keeps the timing more accurate.
RoboJournal is a Qt/C++ cross-platform diary and jounraling editor. It stores tagged entries in MySQL/MariaDB or SQLite databases (PostgreSQL planned). It runs and is prepackaged for Windows and Linux systems, comes with extensive help, wizards, search and archiving functions.
Npackd is a package manager and application market place for Windows. It synchronizes install information with the control panels software section and MSI package database, supports proxies, authorization-protected repositories, silent and fast installations, dependency resolution, automatic shortcut creation, multiple versions per package installation, and SHA1 package checksums.
MACE is a calculator, or algorithm and equation solver suitable for students. It covers 160 logical operations, statistical distributions and functions in the fields analysis, arithmetic, complex functions, linear algebra, differential calculus and statistics. MACE provides a wizard and natural formula and function insertion, also comes with a custom scripting language, and provides extensive help.
MikiDown is a note taking application utilizing MarkDown/CommonMark. It allows editing with a live WYSIWYG preview, can switch between Edit/View/LiveEdit modes. It centralizes all notes, but provides notebook/tab support, page crosslinking, can import from plain text, export to HTML or PDF with customized stylesheets, and includes spellchecking.
DiffImg computes pixel discrepancies between two image files and displays them as color mask or as yellow/red overlay. It also provides a dual panel display, can compute the mean error, RMS and min/max values, shows an error histogram, or display a slideshow for image directories. This allows for compression level comparisons, or optimizing raytracing parameters.
Productivity tool for authors of novels. From the homepage: An open-source tool for novelists. Are you a writer ? Plume Creator will help you with this hard task! This software gives you an outliner, a distraction-free mode, a note manager and much more! This tool is in development, so you can expect new components will be added in the near future.
RSS Guard is simple (yet powerful) feed reader. It is able to fetch the most known feed formats, including RSS/RDF and ATOM. RSS Guard is developed on top of the Qt library. RSS Guard supports multiple data backends, including MySQL and SQLite.
YAGF is a graphical front end for Tesseract and Cuneiform OCR Systems under the Linux OS. With YAGF you can open already scanned image files (including PDF and multi-paged TIFF) or obtain new images via XSane (scanning results are automatically passed to YAGF). Once you have a scanned image you can select particular image areas for recognition, set the recognition language and so on. YAGF also provides some OCR assistance like image restoration for poor quality images, skew correction, text ma
TeXpen is an intuitive LaTeX editor. It comes with built-in themes/background sets, provides live article outlines, equation previews, keyword highlighting and auto-completion, document templates. It simplifies interting tables and figures, bundles a spell check, and can easily build a PDF.