Onyx
Onyx: A free, open-source hub for organizing and launching games from many storefronts. Ranked #21 of 40 in Game Library Managers by our editors (7.0/10); pricing: Free plan; best for open-source storefront aggregation.
At a glance
- Editor score7.0 / 10
- PricingFree plan
- Best forOpen-source storefront aggregation
- Free planYes
- Paid fromFree
- Store coverageMulti-store
- Facts checked20 Sep 2026
Where it wins
- Imports libraries from Steam, Epic, GOG, Xbox, and more
- Edits metadata and searches multiple artwork sources
- Offers multiple views and launches games and mod managers
Where it doesn't
- Linux support is still described as testing
- macOS is not supported
- Cloud sync is not included
Our verdict on Onyx
Onyx is a free, open-source desktop game library manager for players who own games across several storefronts. It brings supported libraries into one interface for browsing, searching, organizing, editing metadata, and launching games. Windows is the primary supported platform, while Linux support is available through AppImage, DEB, and RPM packages in testing. Onyx does not require an account or subscription, making it a focused option for users who want local control over a multi-store collection.
Its main strength is storefront and launcher coverage. Onyx integrates with Steam, Epic Games, GOG, Xbox, EA App, Ubisoft Connect, Battle.net, Humble, Rockstar, Lutris, Bottles, itch.io, and Heroic Games Launcher. Automatic detection and scanning can find installed games, while the consolidated library supports grid, list, logo, carousel, and cover-flow views. Metadata editing covers titles, release dates, and developers, and artwork and banner searching uses multiple sources. Game entries can also launch mod managers, extending the library beyond basic shortcuts.
The trade-off is a narrower platform and synchronization scope. Windows is the clearest fit, while Linux users are working with support explicitly described as testing; macOS is not supported. Cloud sync is not included, so Onyx is better suited to players who want a desktop library manager rather than a shared collection across devices. Choose it for open-source storefront aggregation, local organization, visual customization, and launcher consolidation. Consider another option if macOS support, established Linux support, or cloud-based library synchronization is essential.
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Onyx pricing
Onyx fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Store coverage | Multi-store |
| Emulator support | Not verified |
| Platform support | Multi-platform |
| Controller support | Not verified |
| Offline mode | Not verified |
| Metadata editing | Yes |
| Cloud sync | No |
| Deployment | Desktop |
| Platforms | Windows, Linux |
| Support | Community |
| Built for | Solo, Small business (editorial estimate) |
| Integrations | 13 integrations: Steam, Epic Games, GOG, Xbox, EA App, Ubisoft Connect … |
| Pricing | Free plan |
| Website | onyxlauncher.co.uk |
| Facts checked | 20 Sep 2026 |
Onyx integrations
Onyx lists 13 integrations on its own site.
- Steam
- Epic Games
- GOG
- Xbox
- EA App
- Ubisoft Connect
- Battle.net
- Humble
- Rockstar
- Lutris
- Bottles
- itch.io
- Heroic Games Launcher
Alternatives to Onyx
- LaunchBoxA polished Windows hub for storefront libraries, emulators, metadata, and controller-first browsing.8.9
- GOG GalaxyA free GOG-centered launcher with connected libraries, offline support, and community integrations.8.9
- LutrisA free Linux hub for storefront games, emulators, runners, and Steam libraries.8.8
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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