FModel vs OpenAssetTools
FModel
fmodel.appOpenAssetTools
openassettools.devSide by side
| Figure | FModel | OpenAssetTools |
|---|---|---|
| Price from | Free | — |
| Free plan | Yes | — |
| Free trial | — | — |
| Open source | — | — |
| Windows | Yes | Yes |
| Linux | — | Yes |
| Plans published | 1 | 0 |
| Spec score · Game Modding Tools | 8.4 (#4) | 7.3 (#17) |
| Purpose | FModel is freeware for exploring Unreal Engine game archives. | OpenAssetTools is a work-in-progress modding tool suite for older Call of Duty titles. |
| Supported games | The 2025 release notes say supported games expanded substantially during the year. | It currently supports the PC versions of Call of Duty 4: Modern Warfare, Modern Warfare 2, Modern Warfare 3, Black Ops, and Black Ops II, with varying progress across games. |
Plans
In their own words
FModel
FModel is free, open-source Windows software for exploring and extracting content from games made with Unreal Engine. It can browse game archives, including encrypted ones, and compare two archive states to identify new or modified packages; encrypted archives require an AES key. It parses more than 30 asset types, displays their properties and offers image, audio and 3D viewing for supported content. Package properties can be shown in formats including JSON, INI, XML and TXT, and models can be saved as PSK files. An Export Session window supports batching raw data, model, world, texture and animation exports. The August 2026 release added USD export for meshes, animations, materials and worlds, plus WebP export and texture quality settings. Whole-level export is in USDA format, and sockets or attachments may not always be placed correctly. FModel is distributed as a portable x64 executable in a ZIP archive. It requires .NET 10.0 or later, and some games may require up to 2 GB of free RAM.
OpenAssetTools
OpenAssetTools has no write-up on Specifiction yet; its figures are above.