HingedHinged is a free, open-source desktop app for cataloging stamp collections on macOS, Windows, and Linux. Features gap analysis, series tracking, CSV import, multi-image galleries, and local-first storage — no subscription ever.(0)0
PanelProPanelPro is a free, open-source JMRI application for designing and operating visual control panels for model railroad layouts, with support for DCC hardware, automation, and scripting.(0)0
L LK8000LK8000 is a free, open-source tactical flight computer for glider, paraglider, hang glider, and general aviation pilots. Available on Android and Kobo, used in 67+ countries.(0)0
MyTargets ArcheryMyTargets Archery is a free, open-source Android app that helps archers log training sessions, track scores, and analyze progress over time.(0)0
QLogQLog is a free, open-source amateur radio logging application built on Qt with SQLite. Features rig control, rotator control, and callsign lookups via HamQTH and QRZ.(0)0
NumismatistHelperNumismatistHelper is a free, open-source desktop app for cataloging coins, banknotes, and coin sets using a MySQL database. Supports image attachments and CSV export.(0)0
TraintasticTraintastic is a free, open-source model railroad control and automation app for Windows and Linux. Drive locomotives, control signals, monitor sensors, and automate layouts with built-in Lua scripting.(0)0
OpenTreeMapOpenTreeMap is an open-source collaborative platform for urban tree inventory, ecosystem services calculations, and community engagement. Map and manage your city's urban forest.(0)0
GNU BackgammonGNU Backgammon (GNUbg) is a world-class open-source backgammon program using neural networks for play, analysis, rollouts, and research. Free for Windows, macOS, and Linux.(0)0
SpeciesNetSpeciesNet is Google's open-source ensemble AI model for automatically classifying wildlife species in motion-triggered camera trap images.(0)0
