🎮 Game Stores & LaunchersOSS
Faugus Launcher
Faugus Launcher is a simple, lightweight Linux app for running Windows games with UMU-Launcher.
🎮 Game Stores & LaunchersDE
GameGator
GameGator is a game deals and price-comparison website for finding cheap PC games and game keys from online retailers.
🎮 Game Stores & LaunchersBR
Hydra Launcher
Hydra Launcher is an open-source game launcher for managing, downloading, playing, and tracking a game library.
game-launcheropen-sourcegaming-platform
🌐 BrowserUS
Ladybird
Independent open-source browser project maintained by the US-based Ladybird Browser Initiative (501(c)(3)). The codebase is BSD-2-Clause and under active development, with the first alpha release targeted for 2026 and current builds primarily aimed at developers.
open-sourcebrowserindependent-engine
💳 PaymentsFR
Liberapay
European recurrent donations platform helping creators and projects receive sustained funding. Founded as a French non-profit in 2015, Liberapay enables weekly/monthly/yearly donations without taking a cut. Full source code available under CC0 license.
open-sourcepaymentsdonations
📦 OtherDK
Penneo
Penneo is a Danish B2B digital trust platform for electronic signing, document workflows, forms-based data collection, and KYC processes. Penneo Sign lets companies send, sign, manage, and archive documents using national eIDs, signing flows, audit trails, API integrations, and eIDAS/QTSP support for advanced and qualified electronic signatures across Europe.
digital-signatureselectronic-signaturesqualified-trust-service-provider
👥 Social MediaCA
Pixelfed
Open-source, federated photo-sharing platform that puts creators first. Pixelfed offers an ad-free, algorithm-free Instagram experience with Stories, Collections, and full ActivityPub federation — all without selling your data.
open-sourcesocial-mediafederated
🎮 Game Stores & LaunchersCZ
Playnite
Playnite is an open-source video game library manager and launcher that provides a unified interface for games from multiple libraries, stores, and emulators.
🎮 Game Stores & LaunchersOSS
Rare
Rare is an open-source graphical interface for Legendary that provides Epic Games Launcher-style workflows.
game-launcherepic-gameslegendary
🛡️ Privacy ToolsIN
Rethink: DNS + Firewall + VPN
Rethink is an Android app for per-app firewalling and network monitoring, routing DNS to a user-selected encrypted resolver, and forwarding traffic through user-configured WireGuard, SOCKS5, or HTTP CONNECT tunnels.
🎮 Game Stores & LaunchersOSS
RetroAchievements
RetroAchievements is a community platform for adding achievements, progress tracking, rankings, and emulator support to classic games.
🎨 Design & GraphicsUS
graphite.art
Graphite is a free, open-source vector graphics editor and animation engine with a node-based procedural workflow.
proceduralanimationnode-based
📷 Photo ManagementAT
nomacs - Image Lounge
nomacs - Image Lounge is a free, open-source, cross-platform image viewer for common formats, including RAW and PSD, with basic editing and synchronized image-comparison tools.
image-viewerphoto-editorcross-platform
🗺️ Maps & NavigationDE
Öffi
Öffi is an Android public transport app for trip planning, live departures, nearby stations, and network plans across supported transit networks.
public-transittrip-plannerlive-departures
🎨 Design & GraphicsCZ
Excalidraw
Excalidraw is a Czech virtual whiteboard for quick diagrams, wireframes, brainstorming, and lightweight presentations, built around a hand-drawn visual style. Its core editor is open source and local-first, with real-time collaboration, end-to-end encrypted share links, offline/PWA support, open `.excalidraw` files, and self-hostable code, while Excalidraw+ adds paid cloud workspace features for teams.
open-sourcewhiteboardcollaboration
📦 OtherDE
Forge 4D
Forge 4D is a GPL-licensed application platform for building cross-platform software with SML markup, SMS scripting, and a native runtime on top of Godot. It targets developers and creators who want an open alternative to web-heavy app builders and desktop wrappers for UI tools, editors, and interactive applications.
app-platformcross-platformgodot
🌍 DNS ServicesAT
Foundation for Applied Privacy DNS Privacy Services
Foundation for Applied Privacy DNS Privacy Services is a public encrypted DNS resolver service supporting DNS-over-HTTPS and DNS-over-TLS.
privacydns
🎮 Game Stores & LaunchersPL
GOG.com
GOG.com is a DRM-free digital distribution platform and online store for curated PC games, with an optional gaming client.
✍️ Writing AssistantDE
LanguageTool
German AI-powered grammar and spell checker supporting 30+ languages. Originally launched as an open-source project in 2003, LanguageTool offers browser extensions, desktop apps, and API for writing assistance. The core technology is open-source under LGPL 2.1, with 14.1k GitHub stars and self-hosting capability. Used by millions daily, including major organizations like BMW Group and European Union institutions.
partly-open-sourcegrammarspell-check
🌐 BrowserOSS
LibreWolf
Privacy-focused Firefox fork developed by the LibreWolf community. Removes all telemetry, disables DRM, and includes hardened privacy settings such as Resist Fingerprinting (RFP), enhanced tracking protection, and uBlock Origin. Updated regularly following upstream Firefox releases.
open-sourcebrowserprivacy
💰 Personal FinanceDE
Portfolio Performance
Portfolio Performance is a desktop-first investment portfolio tracker for individuals who want to record transactions across brokers and accounts, calculate True-Time Weighted Return and IRR, monitor allocations and rebalancing, import market data from multiple sources, and keep portfolio files locally in XML with CSV export. An official mobile companion also exists.
portfolio-trackingdesktop-applocal-first
🎬 Video HostingAT
SimpleVideo.eu
SimpleVideo.eu is an Austrian video hosting SaaS for businesses that need to upload, manage, embed, and deliver website videos. It offers a customizable player plus features such as subtitles, transcripts, summaries, chapters, analytics, public pricing, and EU-centered hosting.
video-hostingstreamingprivacy-focused
✉️ Email ServicesDE
Tuta
German encrypted email service (formerly Tutanota) with zero-knowledge mail, calendar, and contacts plus post-quantum TutaCrypt (ECC + Kyber). Tuta open-sources its clients under GPLv3, while its server-side infrastructure remains proprietary and no IMAP mailbox access is offered.
partly-open-sourceencryptionprivacy
📊 AnalyticsDE
Datawrapper
German web-based tool for creating charts, maps, and tables. Used by major news organizations including The New York Times, Washington Post, Reuters, and Die Zeit. Offers free tier with basic features and paid plans for teams with custom branding and self-hosting options.
partly-open-sourceanalyticsvisualization