All projects made with passion 💙
A cross-platform Flutter app for browsing your RomM library, downloading ROMs, and launching games directly in emulators—all from one intuitive interface.
Watch the Feature Walkthrough on YouTube
The main menu showcasing the intuitive game card interface.
Detailed game view with metadata, screenshots, and quick actions.
Freegosy (Free as in "Free for all OS") is the successor to Wingosy. While Wingosy was focused on Windows, Freegosy is built from the ground up using Flutter to provide a unified frontend for all major platforms.
The original inspiration for these projects was Argosy, the native Android app for RomM built in Kotlin. Freegosy aims to bring that same native experience to desktop and beyond, ensuring a seamless, ease-of-use interface for accessing your RomM collection on any device.
Freegosy is a solo passion project — built and maintained in my spare time, with AI tools I pay for out of pocket. If it saves you time or makes your RomM setup better, a small contribution genuinely helps keep it going.
No pressure at all — the app is and will always be free.
- Native Multi-Platform Support: Full support for macOS (ARM64/Intel), Windows, and Linux (including Steam Deck/EmuDeck and RetroDECK integration).
- Enhanced Offline Mode: Persistent metadata caching for browsing and launching your collection without a connection.
- RomM Integration:
- Browse and filter your entire library with server-side pagination.
- Instant "Downloaded" games filter with background deep collection scanning.
- Download ROMs directly via HTTP with real-time progress tracking.
- Personal game properties support (rating, status, completion).
- New: Full RomM 4.9 support — per-device save sync, play session tracking.
- Advanced Emulator Management:
- Download, update, and uninstall emulators directly from Settings.
- Automatic extraction of
.zip,.7z,.dmg,.tar.gz,.tar.xz, and.AppImage. - Smart binary detection and canonical naming across all platforms.
- Dynamic architecture selection for RPCS3 on macOS (ARM64 vs x64).
- Linux Environment Strategies (Default, EmuDeck, RetroDECK) with automatic path detection.
- BIOS Management: Fetch and download BIOS files directly from RomM and automatically place them in the correct directory for each emulator.
- Save Sync:
- Bidirectional local-to-cloud save synchronization with RomM.
- Local Backup History (create instant restore points before experimenting).
- Serial Background Sync Queue (offline backups silently push to RomM automatically when you reconnect).
- Optimized for EmuDeck's platform-specific save structure.
- New: Per-device save isolation on RomM 4.9+ (saves tagged to your device, no cross-device conflicts).
- New: Play session tracking — game sessions automatically recorded to RomM 4.9+.
- New: PCSX2 per-game folder saves (
saves/{Serial}/) supported alongside legacy memcards. - New: Dolphin GameCube saves now correctly upload a single
.gci(no more backup dumps or unrelated games). - New: All strategies respect a 2-second session-start grace window to prevent missing saves written at launch.
- Refined UI/UX:
- Visual-First Grid: Interactive game cards with detailed metadata.
- Recently Played: Quick access to your latest games.
- Screenshot Gallery: Interactive, zoomable screenshot viewer.
- Multi-Disc Support: Integrated picker for multi-file games.
- Controller Support:
- New: Polarity-encoded axis keys (
left_x+/left_x-) for full analog stick and hat switch mapping. - New: SDL GameControllerDB hat switch format (
h0.1,h0.2, etc.) fully parsed for auto-mapping. - New: Reset controller mapping button to clear a broken custom profile.
- New: Save button disabled when sniff wizard produces an empty mapping.
- New: Polarity-encoded axis keys (
| Emulator | Status | Notes |
|---|---|---|
| RetroArch | 🟡 Partial | GBA, SNES, NES, Dreamcast, Mega Drive — anything using .srm/.sav save files. NDS via DeSmuME/mGBA core. PSP may work. |
| DuckStation | 🟢 Full | PS1 .mcd memory card saves fully synced. |
| PPSSPP | 🟢 Full | PSP save data directory fully synced. |
| Ryujinx | 🟢 Full | Switch save directory fully synced (configurable Title ID mapping). |
| Eden | 🟢 Full | Switch save directory fully synced (configurable Title ID + profile). |
| PCSX2 | 🟢 Full | PS2 per-game folder saves (saves/{Serial}/) and legacy .mcd memcards both synced. |
| mGBA | 🟢 Full | GBA/GBC/GB .sav/.srm fully synced (standalone, outside RetroArch). |
| MelonDS | 🟡 Partial | NDS save files synced (limited testing). |
| Dolphin | 🟡 Partial | GC/Wii save files synced. |
| Cemu | 🟡 Partial | Wii U — confirmed working on Windows, needs macOS/Linux testing. |
| Azahar | 🔴 Untested | 3DS — not yet tested on any platform. |
| RPCS3 | 🟡 Partial | PS3 — confirmed working on Windows, needs macOS/Linux testing. |
| Xenia | 🟡 Partial | Xbox 360 — confirmed working on Windows, needs macOS/Linux testing. |
| Windows Native | 🟡 Partial | PC games — confirmed working on Windows. |
Per-OS Notes:
- macOS (ARM64/Intel): RetroArch, DuckStation, Ryujinx, Eden, mGBA all verified. App bundle path resolution handles
.apppackage structure. - Windows: Same emulator support. DuckStation portable mode auto-configured via
portable.txt. RetroArch config file resolution viaAPPDATA. - Linux (Steam Deck / EmuDeck / RetroDECK): RetroArch, DuckStation, Dolphin, PPSSPP, PCSX2 all supported via EmuDeck/RetroDECK save structure presets.
Help wanted — if you're using an emulator marked 🔴 or 🟡 and can confirm compatibility, please report your experience!
I am currently searching for testers on macOS, Windows, and Linux (Steam Deck) to help polish the experience.
- Future Plans: Android support is next for a truly unified app experience.
- Get Involved: If you're interested in testing an early release, reach out via GitHub or join the community discussions.
Freegosy is built to complement RomM, a modern ROM manager. It connects to your RomM instance to provide a lightweight, portable way to access and play your games.
