



Browse 872 Flatpak Packages on AlternativeTo.




Constellation is a control and data acquisition system for small-scale experiments and experimental setup with volatile and dynamic constituents such as testbeam environments or laboratory test stands.







Kalorite is a small-size Qt6 audio player that aims to be modern and easy-to-use made for my needs to use on KDE.

A simple utility for the calculation and analysis of IP subnet values, designed to simplify network configuration tasks.


A simple and fast translation app for KDE Plasma that helps you translate text between different languages.

Map is a Wardley map editor for macOS and Linux that uses a simple language to easily create and edit maps. Draw components, link dependencies, create groups, write notes, or add inertia and evolution markers, and see your map change in an instant.




Automated document processing for accounting services. Ensure timely delivery of documents and streamline processing with Treemly.




Pineapple Steam Recording Exporter is a Qt6-based application that helps you automatically identify and export Steam game recordings to MP4 video files. It provides a user-friendly interface to browse, preview, and convert your Steam game clips without quality loss.



Mimick is an unofficial Immich desktop client for Linux. It provides a GTK4/libadwaita interface for automatic background sync of local photo and video folders to a self-hosted Immich server, and an optional library browser for viewing, searching, and managing assets directly...




SaunaSim is an ATC Training tool that simulates an aircraft with a full FMS and autopilot. The aircraft are designed to act as realistically as possible and take into account various factors such as atmospheric and performance data.



Fast Reader helps you read quickly by displaying only one word at a time. This program offers a customizable interface to enhance the reading experience.




A 2D platformer is based on Community's Digital Estate Planning episode. It's built using the LÖVE game engine.

Tempo is a simple, reliable, and aesthetically pleasing metronome application built with GTK4 and Libadwaita. It provides precise timing, customizable settings, and a distraction-free user experience for musicians of all levels.




RBDOOM-3-BFG is based on DOOM-3-BFG and the goal of this port is to bring DOOM-3-BFG up to the latest technology in 2021 making it closer to Doom 2016 while still remaining a DOOM 3 port regarding the gameplay.



A simple calculator for the COSMIC desktop. The calculator has an operations history, providing the ability to bring previous calculations back to the screen for further use or inspection.


MirrorHall creates virtual second monitors over the network using UDP video streaming among Linux desktop or mobile devices. It is optimized for low latency, and is based on gstreamer and GNOME's mutter screen sharing APIs.

