The Foss group

The complete chess experience, play and compete with friends and others around the world.

Qtractor is an Audio/MIDI multi-track sequencer application written in C++ with the Qt framework. Target platform is GNU/Linux, where the Jack Audio Connection Kit (JACK) for audio, and the Advanced Linux Sound Architecture (ALSA) for MIDI, are the main infrastructures for Qtractor to evolve as a fairly-featured desktop audio workstation GUI, specially dedicated to the personal home-studio.

Qtractor is free/libre, open-source software, distributed under the terms of the GNU General Public License (GPL) version 2 or later.

Binary releases of Visual Studio Code without Microsoft branding, telemetry and licensing.

Olive is a free non-linear video editor aiming to provide a fully-featured alternative to high-end professional video editing software.
Olive is making rapid progress and users are already producing videos with it, but it's still currently in alpha meaning it is incomplete and not fully stable. Regardless we invite you to download the latest build and try it out for yourself.
New features are being added every day. Even if Olive is missing something you need, come back in a month or two and it's possible it will have been implemented.

darktable is a virtual lighttable and darkroom for photographers: it manages your digital negatives in a database and lets you view them through a zoomable lighttable. it also enables you to develop raw images and enhance them.

This project tries to fill the gap between the many excellent existing free raw converters and image management tools (such as UFRaw or F-Spot). The user interface is built around efficient caching of image metadata and mipmaps, all stored in a database. The user will always be able to interact, even if the full resolution image is not yet loaded.

All editing is fully non-destructive and only operates on cached image buffers for display. The full image is only converted during export. the frontend is written in gtk+/cairo, the database uses sqlite3, raw image loading is done using libraw, hdr, exr and low dynamic range are supported through imagemagick (magickcore). the core operates completely on floating point values, so darktable can not only be used for photography but also for scientifically acquired images or output of renderers (high dynamic range).

FreeTube is an open source desktop YouTube player built with privacy in mind. Use YouTube without advertisments and prevent Google tracking from you with their cookies and JavaScript. Available for Windows, Mac & Linux thanks to Electron.

7-Zip is a file archiver with a high compression ratio.

The main features of 7-Zip

High compression ratio in 7z format with LZMA and LZMA2 compression
Supported formats:
Packing / unpacking: 7z, XZ, BZIP2, GZIP, TAR, ZIP and WIM
Unpacking only: AR, ARJ, CAB, CHM, CPIO, CramFS, DMG, EXT, FAT, GPT, HFS, IHEX, ISO, LZH, LZMA, MBR, MSI, NSIS, NTFS, QCOW2, RAR, RPM, SquashFS, UDF, UEFI, VDI, VHD, VMDK, WIM, XAR and Z.
For ZIP and GZIP formats, 7-Zip provides a compression ratio that is 2-10 % better than the ratio provided by PKZip and WinZip
Strong AES-256 encryption in 7z and ZIP formats
Self-extracting capability for 7z format
Integration with Windows Shell
Powerful File Manager
Powerful command line version
Plugin for FAR Manager
Localizations for 87 languages

7-Zip works in Windows 10 / 8 / 7 / Vista / XP / 2012 / 2008 / 2003 / 2000 / NT. There is a port of the command line version to Linux/Unix and macOS.

Signal is a messaging app with an unexpected focus on privacy, combined with all the features expected from a modern IM app. Signal has received a lot of praise from all around the world for its security and privacy-respecting technologies.

qTox - The most feature-rich Tox client; P2P instant messaging, audio and video calls.

Calligra Suite is an office and graphic art suite by KDE. It is available for desktop PCs, tablet computers, and smartphones. It contains applications for word processing, spreadsheets, presentation, vector graphics, and editing databases.

Write, and get help writing
Turn your personal school notes in something useful for others. Get help from peers and friends to make sure that what you are writing is clear and error free.
Create living book
Download the last version of all the pages in beautiful and professional PDFs. It is very useful even for your personal notes!
Get recognized for your work
Each book that is reviewed by at least two academics gets a special recognition and is ready to be shared with the world.

GDScript is a high-level, dynamically typed programming language used to create content. It uses a syntax similar to Python.

diagrams.net (previously draw.io) is a free online diagram drawing application for workflow, BPM, org charts, UML, ER, network diagrams. No login or registration are required and features include the ability to save locally (including SVG), a range of stencils, .vsdx, Lucidchart and Gliffy import and real time diagram sharing.

Windows portable app maker: launcher(s), runtime, and gui designed to help you run non-portable applications in a portable manner.

Full-featured screen recording and live streaming software for Mac, Windows and Linux.

Waterfox is a high performance browser based on the Mozilla platform. Made specifically for 64-bit systems, Waterfox has one thing in mind: speed.

More than ever people expect a stable desktop with cutting-edge features, all in a package which is easy to use and ready to make their own.

KDE neon is the intersection of these needs using a stable Ubuntu long-term release as its core, packaging the hottest software fresh from the KDE Community ovens. Compute knowing you have a solid foundation and enjoy the features you experience in the world's most customisable desktop.

You should use KDE neon if you want the latest and greatest from the KDE community but the safety and stability of a Long Term Support release. When you don't want to worry about strange core mechanics and just get things done with the latest features. When you want your computer as your tool, something that belongs to you, that you can trust and that delivers day after day, week after week, year after year.

Minetest is a near-infinite-world block sandbox game and a game engine, inspired by InfiniMiner, Minecraft, and the like.

KDevelop is a Free and Open Source integrated development environment (IDE).

It provides editing, navigation and debugging features for several programming languages, as well as integration with multiple build systems and version-control systems, using a plugin-based architecture.

KDevelop has parser backends for C, C++ and Javascript/QML, with further external plugins supporting e.g. PHP or Python.

The Kate project develops two main products: KatePart, the advanced editor component which is used in numerous KDE applications requiring a text editing component, and Kate, a MDI text editor application. In addition, we provide KWrite, a simple SDI editor shell which allows the user to select his/her favourite editor component.

Kate

Kate is a multi-document editor part of KDE since release 2.2. Being a KDE application, Kate ships with network transparency, as well as integration with the outstanding features of KDE. Choose it for viewing HTML sources from konqueror, editing configuration files, writing new applications or any other text editing task. You still need just one running instance of Kate.

With a multi-view editor like Kate you get a lot of advantages. You can view several instances of the same document and all instances are synchronized. Or you can view more files at the same time for easy reference or simultaneous editing.

KWrite

KWrite is a simple text editor application, allowing you to edit one file at the time per window. As Kate, KWrite uses the editor component KatePart.KWrite simply provides the selected editor component with a window frame, and lets you open and save documents. KWrite shares all features the KatePart provides, look here to get an overview.
Licensing

Kate is released under the GNU Lesser General Public License (LGPL) Version 2 Kate is part of the KDE project. How to get the entire source code is described in the article Get It.

Blender is the free and open-source 3D creation suite. It supports the entirety of the 3D pipeline—modeling, rigging, animation, simulation, rendering, compositing, video editing, and motion tracking.

A extremely powerful application to make games in python as well as in visual programming.

Godot Engine is a feature-packed, cross-platform game engine to create 2D and 3D games from a unified interface. It provides a comprehensive set of common tools, so that users can focus on making games without having to reinvent the wheel. Games can be exported with one click to a number of platforms, including the major desktop platforms (Linux, macOS, Windows), mobile platforms (Android, iOS), as well as Web-based platforms (HTML5) and consoles.

FEATURES

Visual editor, full of mature tools.
Uncluttered UI, with context-sensitive editors.
Amazing scene system, supporting instancing and inheritance.
Friendly content creation interfaces for artists, level designers, animators, …
Visual shader editing for 2D and 3D.
Persistent live editing (changes are not lost after stopping the game). Live editing on mobile devices!

Kdenlive is a non linear video editor. It is based on the MLT framework and accepts many audio and video formats, allows you to add effects, transitions and render into the format of your choice.

Defold lets you quickly build high performing, cross-platform games together with your team.

Natron is an open source, cross platform nodal compositing application. It is built around industry standard open source tech such as OpenFX, OpenEXR, OpenColorIO and OpenImageIO. The feature set includes realtime playback/RAM cache, multi-threaded rendering, 2d tracking, rotoscoping, grading, animation via f-curves and 3rd party OpenFX plugin support. All contained within a familiar, intuitive interface with an XML based project file format.

Scribus is a desktop publishing (DTP) application. Scribus is designed for flexible layout and typesetting, and the ability to prepare files for professional quality image setting equipment. It can also create animated and interactive PDF presentations and forms. Example uses include writing small newspapers, brochures, newsletters, posters and books.

Open-source presentation tool using SVG images to create zooming and panning animations similar to Prezi.

Enve is a free and open-source 2D animation app. It can create both vector and raster animations and even use sound and video files. It has been created with flexibility and expandability in mind.

GIMP is a free program for such photo retouching, image composition and image authoring. Essentially it's the closest thing to Photoshop you can get for free.

Inkscape is a professional vector graphics editor for Linux, Windows and macOS. It's free and open source.

Penpot is the first open-source design and prototyping tool meant for Product teams.

Built by Game Devs for Game Devs, ByteBrew is the all-in-one mobile game growth platform that gives you everything your game needs to hit the top charts for free!.

Codeberg is a free Git source code hosting service, with the objective to give the Open-Source code that is running our world a safe and friendly home, and to ensure that free code remains free and secure forever.

Gitea is a community managed fork of Gogs lightweight code hosting solution written in Go and published under the MIT license.

Convert videos to formats that work on your mobile phone, tablet, TV media player, game console, computer, or web browser.

LibreOffice is a powerful office suite – its clean interface and feature-rich tools help you unleash your creativity and enhance your productivity.

Syncthing replaces proprietary sync and cloud services with something open, trustworthy and decentralized. Your data is your data alone and you deserve to choose where it is stored.