3D model format used by ROBLOX for storing game assets and objects
File type: Game file
The .rbxm file extension is associated with ROBLOX, an online platform for creating and playing user-generated 3D games. These files store 3D models, parts, and objects created within the ROBLOX Studio environment.
They are used to save and load custom models, assets, and game components that can be integrated into ROBLOX games and shared among users.
File type category:
Game file
Date updated: July 28, 2026
.rbxm files are the primary format for storing 3D models in the ROBLOX ecosystem. They contain a hierarchical collection of objects, parts, scripts, and properties that define a game's environment and assets. These files are based on a proprietary format specific to ROBLOX, designed to be compatible across various platforms where ROBLOX Studio and the game engine operate.
The format has evolved with different versions, but it mainly consists of serialized data structures representing the object's properties, geometry, and relationships. Typically, these files are created and modified within ROBLOX Studio, the official development environment provided by ROBLOX.
Roblox's multi-platform approach ensures that .rbxm files are accessible on Windows, macOS, and Linux systems, either directly through ROBLOX Studio or via compatible third-party tools. The popularity of ROBLOX's user-generated content system has also prompted the development of various community tools aimed at editing and managing these files outside of the official environment.
To open a .rbxm file, the recommended software is ROBLOX Studio. On Windows and macOS, users can import and edit these files directly within ROBLOX Studio by opening the application, selecting 'File' > 'Open', and choosing the .rbxm file.
For Linux users, running ROBLOX Studio might require additional steps or compatibility layers such as Wine, as it is officially available only for Windows and macOS. Alternatively, some community-developed tools can provide limited viewing or editing capabilities for these files.
Converting .rbxm files to other formats is generally done within ROBLOX Studio or with community tools that export models to formats like OBJ or FBX. Users can import the model into ROBLOX Studio and then export it in a compatible format using the built-in export options.
There are also online conversion tools and third-party applications that can assist in converting ROBLOX models to other 3D formats, which can be useful for editing or integrating models in other 3D applications. Always ensure compatibility and verify the integrity of the exported models after conversion.
Software applications that can open rbxm files:
Multiplatform
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