A simple and lightweight app for running games using UMU-LauncherMain Features:
Play Windows games using Proton
Play Linux native games
Run Windows games directly from the .exe file
Prefix management
Shortcut and Steam shortcut management
Integrated tools:
Winetricks: A helper tool to easily install dependencies, fonts, DLLs, and tweaks for Wine.
Winecfg: Wine's graphical interface to configure Windows versions, libraries, drivers, and integrations.
MangoHud: Shows an overlay for monitoring FPS, temperatures, CPU/GPU load and more.
Feral GameMode: Tweaks your system to improve performance.
Disable Hidraw: May fix controller issues in some games.
Additional Application: An additional application to run with the game, like Cheat Engine, Trainers, Mods...
Lossless Scaling Frame Generation: Create fake frames to increase the framerate.
Proton Manager: Download/Remove GE-Proton and Proton-EM builds.
Wine Wayland Driver support (Experimental).
HDR Support (Experimental).
Known issues with Flatpak:
The 'stop' button won't close games.
Gamescope doesn't work.
It may not use the system theme in some DEs.
Additional information:Developer: FaugusLicense: MITVersion: 1.16.5-1
Watch anime from AniLiberty
Kitsune is a Libadwaita client for watching anime translated by the AniLiberty team.
Browse the catalog, search for titles, and watch episodes with the built-in player.
Content (catalog, descriptions, and subtitles) is provided in Russian by the AniLiberty API.
Additional information:Developer: Semen (Armatik) FomchenkovLicense: GPL-3.0-or-laterVersion: 0.8.3
Play movies and audio files
Glide is a simple and minimalistic media player relying on GStreamer for the multimedia support
and GTK for the user interface. Glide should be able to play any multimedia format supported by
GStreamer, locally or remotely hosted.
Once Glide is running you can use some menus to switch the subtitle and audio
tracks, play, pause, seek and switch the window to fullscreen.
Additional information:Developer: Philippe NormandLicense: MITVersion: 0.6.6
Control your Android apps
A tool to manage which Android apps can run in the background.
You probably don't need some random takeaway app doing anything in
the background. And maybe you don't want that mobile game wasting
your data when you're not using it.
NoMoreBackground gives you a list of your apps and lets you choose
which of them you want having background permissions,
all on one screen, to help you get the most out of your battery.
And the best part? When you're done, you can close NoMoreBackground
and move on with your life. No need to "optimize" every day like
some other tools: set and forget!
Tip: Some apps may still run in the background even if you turn them off here.
If you use an app very infrequently, right click it and archive it.
The app itself will be uninstalled but its data will remain.
This means when you next open it, it'll be reinstalled and you'll still be logged in.
Additional information:Developer: Adil HanneyLicense: GPL-3.0-onlyVersion: 2.1.3
Find matching pairsMemorize is about finding matching pairs. A pair can be images, sounds and text and this could be extended to animations or movie snippets as well. Which pairs match is up to the creator of the game. Memorize is more than a predefined game you can play, it allows you to create new games yourself as well.
Additional information:Developer: Sugar Labs CommunityLicense: GPL-2.0-or-later AND GPL-3.0-or-laterVersion: 59
A game about fractionsFractionBounce is a game to nudge a bouncing ball to land at an estimate of a given fraction. For example, if 2/3 is displayed on the ball, then the ball must land 2/3 the distance along the bottom.
Additional information:Developer: Sugar Labs CommunityLicense: GPL-3.0-or-laterVersion: 28.1
Virtual tabletop for multiplayer card games
Cockatrice is an open-source, multiplatform program for playing tabletop card games over a network.
The program's server design prevents users from manipulating the game for unfair advantage.
The client also provides a single-player mode, which allows users to brew while offline.
Additional information:Developer: Cockatrice ProjectLicense: GPL-2.0Version: 2026-02-22-Release-2.10.3
Learn financial planning basicsWant to wisely manage money? Learn financial planning basics and track your family's finance, make your own budget and learn how to make every penny count!
Additional information:Developer: Sugar Labs CommunityLicense: GPL-3.0-or-laterVersion: 15
Create your own comicFotoToon allows you to create everything from a simple “comic” strip to a long elaborate illustrated document. You will be able to import many kinds of images into the panes of your project and add text bubbles to help tell the story.
Additional information:Developer: Sugar Labs CommunityLicense: GPL-3.0-or-laterVersion: 26
A pattern-matching gameDimensions is a pattern-matching game. The object of the game is to find sets of three cards where each attribute—color, shape, texture, and number of elements—are either the same or different.
Additional information:Developer: Sugar Labs CommunityLicense: GPL-3.0-or-later AND MIT AND LGPL-2.0-or-laterVersion: 60
A game based on logical inductionColor Deducto is a learning activity to help children learn the art of inductive logic through pattern recognition.
Additional information:Developer: Sugar Labs CommunityLicense: GPL-3.0-or-laterVersion: 8
A sweet Chess gameSugar Chess is a front end to the gnuchess program. It features varying levels of difficulty, undo, PGN output, customization of graphics, et al.
Additional information:Developer: Sugar Labs CommunityLicense: GPL-3.0-or-laterVersion: 18
An infix-notation graphing calculatorThis is the place to get the answer to a quick problem, but that is not the limit! You can also explore Algebra, Trigonometry, Boolean and more!
Additional information:Developer: Sugar Labs CommunityLicense: GPL-2.0-or-laterVersion: 47
A tool for simple arithmetic calculationsAbacus lets the learner explore different representations of numbers using different mechanical counting systems developed by the ancient Romans and Chinese. There are several different variants available for exploration.
Additional information:Developer: Sugar Labs CommunityLicense: GPL-3.0-or-laterVersion: 62
High-end image creation and manipulation
GIMP is an acronym for GNU Image Manipulation Program. It is
Community-driven Free Software for high-end image creation and manipulation.
It has many capabilities. It can be used as a paint program,
an expert quality photo retouching program, image composition,
an online batch processing system, a mass production image
renderer, an image format converter, etc.
GIMP is expandable and extensible. It is designed to be
augmented with plug-ins and extensions to do just about
anything. The advanced scripting interface allows everything
from the simplest task to the most complex image manipulation
procedures to be easily scripted. GIMP is available for Linux,
Microsoft Windows and macOS.
Additional information:Developer: The GIMP teamLicense: GPL-3.0+ AND LGPL-3.0+Version: 3.2.0
Community-enhanced chess database and analysis application
scidCommunity is a community-driven fork of Scid (Shane's Chess Information Database), focused on
adding enhancements while maintaining full compatibility with existing Scid databases. It allows you to
store, organize, and search through large collections of chess games with support for any compatible UCI chess engine.
Key enhancements in scidCommunity:
Engine analysis controls with configurable depth and time limits
Integrated TWIC (The Week in Chess) game downloads
Direct game uploads to Lichess and Chess.com from the PGN window
Tablebase integration via Lichess 7-man endgames
Additional theme options (Sand and cobalt2)
New feature to open Lichess broadcast tournament games
Improved Header Search with saveable search layouts for frequently-used parameters
This fork welcomes community suggestions and aims to be responsive to user feature requests.
If you've wished for specific functionality in your chess database workflow, scidCommunity may be for you.
Additional information:Developer: scidCommunityLicense: GPL-2.0Version: 5.1.2.68
A fast and minimalist 3D viewer
A VTK-based 3D viewer following the KISS principle, so it is minimalist,
efficient, has no GUI, has simple interaction mechanisms and is fully
controllable using arguments on the command line.
Additional information:Developer: F3D-APP FoundationLicense: BSD-3-ClauseVersion: 3.1.0
A Markdown editor for the 21st centuryWriting is an essential part of our everyday life. Why make it complicated? Zettlr redefines what writing means. It is slim, fast, and versatile. Focus on what matters to you. Publish, not perish.
In modern times, getting a hold of the flood of information is almost as hard as inserting a USB drive the right way on the first attempt. Zettlr allows you to connect pieces of information using state of the art Zettelkasten methodology. Links? Check. File IDs? Check. File tagging? Also check. And the best is: Unlike many competitors, Zettlr never locks you in. Zettlr supports almost every conceivable way to create links and identify your files. In other words: No matter where you come from — all Zettelkästen are beautiful and supported by Zettlr. Out of the box.
Zettlr integrates well with reference managers such as Zotero, JabRef, or Juris-M. Simply load your library into Zettlr, and begin to cite. Zettlr strictly adheres to established standards and does not reinvent the wheel. Citations can be loaded using CSL-JSON or BibTex and the citation processor only uses Citation Style Language, the de-facto industry standard for citations. This enables you to use one of over 9,000 different styles from the official Zotero repository!
Due to its designing flexibility, Zettlr supports dark mode out of the box, as well as many different themes, suited to your needs. Switching is as easy as pressing a button. Not satisfied with the provided themes? No problem: Zettlr allows full customization of every single element; you can even create completely new themes using Custom CSS!
No matter whether you work with a lot of notes, such as a Zettelkasten, or simply have a lot of files with different important contents: Zettlr's revolutionary heatmap search lets you find every single note you've ever written. No more confusion over where that one citation was!
Twitter invented them and, since then, everybody adopted them: Hashtags! Zettlr goes one step further, not only allowing you to link and categorize your notes using tags, but using its tag-manager you can assign colors to tags to visualize your notes immediately!
Zettlr scales well with your aspirations. From the first texts in university to your dissertation thesis: Using the advanced features of Zettlr tailored to researchers, journalists, and novelists writing whole books is as easy as creating a new project. Zettlr will never stand in your way, just like a good app should.
Note: In order to be able to export to PDF via LaTeX you need to additionally install the extension org.freedesktop.Sdk.Extension.texlive
Additional information:Developer: ZettlrLicense: GPL-3.0-or-laterVersion: 4.3.0
Advanced dictionary lookup program
GoldenDict-ng is an advanced dictionary lookup program, supporting multiple
dictionary formats and features.
Additional information:Developer: The GoldenDict-ng CommunityLicense: GPL-3.0-or-laterVersion: 26.3.0
Track Octopus electricity pricesHalf hourly electricity prices for the next 24 hours for users of Octopus Energy's agile tariff. This application is only relevant for people in the UK,
Additional information:Developer: Nick RichardsLicense: GPL-3.0-or-laterVersion: 1.0.7
Faktury KSeF Polska
Note: This application is currently only available in Polish.
KsefInvoice to nowoczesne fakturowanie z pełną integracją KSeF — za darmo, na zawsze!
Jest to w pełni darmowa, bezpieczna aplikacja desktopowa do zarządzania fakturami, kontrahentami i wysyłką do Krajowego Systemu e-Faktur (KSeF).
Bez abonamentu, bez reklam i ukrytych opłat. Twoje dane pozostają lokalnie na Twoim komputerze.
Główne moduły i rozszerzone funkcje aplikacji:
Integracja z KSeF: Pełna obsługa Krajowego Systemu e-Faktur. Wysyłaj faktury sprzedaży i pobieraj faktury zakupu bezpośrednio z serwerów Ministerstwa Finansów. Obsługa autoryzacji tokenem/podpisem, masowa wysyłka oraz pobieranie UPO.
Aplikacja Podatnika (QR): Zgodne z wytycznymi MF generowanie wizualnych kodów QR dla weryfikacji dokumentów offline i podgląg struktury XML.
Baza Kontrahentów: Automatyczne pobieranie danych firm z rejestrów GUS, weryfikacja numeru VIES oraz Białej Listy Podatników z obsługą wielooddziałowości pod jednym numerm NIP.
Fakturowanie i Waluty: Kompletna obsługa dokumentów (Faktury VAT, Korekty, Marża, Ryczałt) w różnych walutach, wzbogacona o automatyczne dociąganie codziennych kursów z Tabeli A (NBP) i tłumaczenie faktur na j. angielski.
JPK i Rejestry: Inteligentne generowanie plików JPK_V7M, plików JPK_FA (wsparcie tagów dokumentów m.in. procedur GTU_12/13/odwrotnego obciążenia), oraz uwzględnianie przewalutowań w ewidencji VAT.
Rozwiqzania Księgowe (Kompensaty): Monitoruj należności i zobowiązania, zarządzaj terminami płatności i korzystaj ze zbiorczych wpłat (kompensat obustronnych na jednym kontrahencie).
Ergonomia pracy: Natywne wsparcie ciemnego motywu (Dark Mode) oraz błyskawiczne podglądy statusu opłacenia.
Ta wersja jest darmowa i w pełni funkcjonalna, bez reklam i ukrytych opłat.
Additional information:Developer: Jarosław DyszczyńskiLicense: LicenseRef-proprietary=https://github.com/JDyszczynski/pl.ksefinvoice.app/blob/main/LICENSEVersion: 1.0.12
The open-source to-do appThink of Vikunja like the notebook you have with all your things to keep track of.
But with superpowers.
☑️ Stay organized
Organize all of your tasks in projects.
Create subprojects organize everything hierarchical and keep related stuff grouped together.
👥 Collaborate with peers
Vikunja lets you easily share a project with another user or a whole team!
Assignments show who's working on what.
🧩 Use it how you need it
You can view your tasks in the classic list view -or in a Gantt Chart, or Table view, or Kanban Board!
Additional information:Developer: kolaenteLicense: AGPL-3.0-or-laterVersion: 2.2.0
YAFI is another GUI for the Framework Laptop Embedded ControllerIt is written in Python with a GTK4 Adwaita theme, and uses the CrOS_EC_Python library to communicate with the EC.
YAFI has the capability for the following features:
Fan control and temperature monitoring
LED control
Battery statistics
Battery limiting
Hardware information
You will need to install the udev rules to allow non-root access to the EC device. See the README for more information.
Alternatively, you can run curl -Lfs yafi.stevetech.au/udev.sh | sudo sh to install the udev rules.
YAFI is not affiliated with Framework Computer Inc. in any way.
Additional information:Developer: Stephen HorvathLicense: GPL-2.0-or-laterVersion: 1.0
Use stream controllersOpenDeck is an application for using stream controller devices like the Elgato Stream Deck.
OpenDeck supports the majority of the original Stream Deck plugins, like Elgato's own Discord plugin, unlike other softwares (e.g. streamdeck-ui, StreamController, Boatswain) which are much more limited.
Please note that you will need to install udev subsystem rules for your device to be detected. For more information, see the Installation section of the project README on GitHub.
Some compiled plugins are not compiled for Linux, so you may need to have Wine (and Wine Mono) installed on your system (natively, as the Wine Flatpak is not supported). Similarly, for using plugins made with Node.js, the Node.js Flatpak is not supported.
From Multi Actions and Toggle Actions to switching profiles when you switch apps and brightness control, OpenDeck has all the features you'd expect from stream controller software.
Consider that the power of your Stream Deck actually comes from the software you use with it, then remember how much you paid for it. To support OpenDeck's development, please consider donating to me on GitHub Sponsors.
Additional information:Developer: Aman KhannaLicense: GPL-3.0-or-laterVersion: 2.10.1
Free and easy binary newsreader
SABnzbd is a free and Open Source web-based binary newsreader,
with support for the popular nzb file format. It greatly simplifies
the process of downloading from Usenet, thanks to a friendly
web-based user interface and advanced built-in post-processing
options including the ability to automatically verify, repair,
extract and clean up downloaded posts. It runs anywhere, comes in
over a dozen languages, and integrates with a host of tools, apps
and services that help automate the download process.
Additional information:Developer: The SABnzbd-TeamLicense: GPL-2.0-or-laterVersion: 4.5.5
HP Calculator SimulatorIncludes emulators for the HP 35, HP 80, HP 45, HP 70, HP 55, HP 21, HP 22, HP 25, HP 25C, HP 27, HP 29C, HP 31E, HP 32E, HP 33E, HP 33C, HP 34C, HP 37E, HP 38C, HP 38E, HP10, HP 67, HP 10C, HP 11C, HP 12C, HP 15C, and HP 16C.
If GTK is available then on models with continuous memory or a card reader, right-clicking on the application window will open a dialog window allowing the user to load a saved program in 'run' mode or save it in 'prgm' mode.
The default model can be changed either by right-clicking on desktop icon, or if this isn't supported on your system you can access the configuration dialog from a terminal window using the command flatpak run io.github.mike632t.x11-calc --setup
Note - The following fonts should be installed xfonts-base (Debian/Ubuntu), xorg-x11-fonts-base or xorg-x11-fonts-misc (Fedora), font-misc-misc (Gentoo).
Additional information:Developer: mike632tLicense: GPL-3.0-or-laterVersion: 0.26.0251
Micro habit tracker for personal growth"Table Habit" is an app that helps you establish and track your own micro habit.
It includes a complete set of growth curves and charts to help you build habits more
effectively,
and keeps your data in sync across devices (currently via WebDAV, with more options coming
soon).
Moreover, this app is completely open source and comes with these features:
A scoring system to help develop your own micro habits.
Support both positive and negative habit.
An easy-to-use interface for habit check in.
A quick search and filter to help quickly find past habits.
Different colors used to distinguish between various habits.
Easily export and import habits using a human-readable format (JSON).
Adapt to Material3 and Dynamic Color for Android 12 and later versions.
Adaptation for landscape and large screen devices.
Support network sync with WebDAV.
No ADs in this app.
Additional information:Developer: Fries_I23License: Apache-2.0Version: 1.23.11+151
Generate two-factor codesSimple application for generating Two-Factor Authentication Codes.
Features:
Time-based/Counter-based/Steam methods support
SHA-1/SHA-256/SHA-512 algorithms support
QR code scanner using a camera or from a screenshot
Lock the application with a password
Beautiful UI
GNOME Shell search provider
Backup/Restore from/into known applications like FreeOTP+, Aegis (encrypted / plain-text), andOTP, Google Authenticator
Additional information:Developer: Bilal ElmoussaouiLicense: GPL-3.0-or-laterVersion: 4.6.2
Fast and lightweight image viewerRistretto is an image viewer for the Xfce desktop environment.
The Ristretto Image Viewer is an application that can be used to view
and scroll through images, run a slideshow of images, open images with
other applications like an image-editor or configure an image as the
desktop wallpaper.
Additional information:Developer: Xfce DevelopersLicense: GPL-2.0+Version: 0.14.0
A Beautiful Gemini Client
Lagrange is a desktop GUI client for browsing Geminispace.
It offers modern conveniences familiar from web browsers,
such as smooth scrolling, inline image viewing, multiple
tabs, visual themes, Unicode fonts, bookmarks, history, and
page outlines.
Like the Gemini protocol, Lagrange has been designed with
minimalism in mind. It depends on a small number of essential
libraries. It is written in C and uses SDL for
hardware-accelerated graphics. OpenSSL is used for secure
communications.
Additional information:Developer: Jaakko KeränenLicense: BSD-2-ClauseVersion: 1.20.2