Click the "Select File" button above, and choose your OBN file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.
Convert OBN to another file type
To convert OBN collision files to another format, you need OpenIV or other Game software.
Convert a file to OBN
To convert other file formats to the "RAGE Collision Boundary File" file type, you need software like OpenIV or a similar tool.
About OBN files
The .OBN file is a 3D object bounds or collision boundary file used by the Rockstar Advanced Game Engine (RAGE). It defines the physical hitboxes and collision meshes for in-game objects in titles like Grand Theft Auto V and Red Dead Redemption, ensuring that player characters and vehicles interact correctly with the game world.
You typically need specialized community-built modding software like OpenIV to view, extract, or edit these files. Official tools are internal to Rockstar Games and are not available to the public.
The .OBN format is highly proprietary and compiled specifically for game engine efficiency. Standard 3D modeling tools like Blender or Autodesk Maya cannot open it directly. It is not supported by web browsers, and attempting to open it in a standard text editor will only display garbled binary data. Modders face significant challenges because reading or modifying these files requires reverse-engineered parsers.
To edit the geometry, modders usually convert .OBN files to standard 3D formats like OBJ or FBX. To edit the metadata and collision parameters, the file is often decompiled into XML format. You must repackage the file back to .OBN to load your changes into the RAGE engine.
This file format is exceptionally difficult to open or convert because it is a closed, proprietary game asset. Standard online converters fail to process it since they lack the specific RAGE engine decompression algorithms. However, just drag and drop your file to identify the format, view it, and convert it when possible. Our tools can inspect the .OBN file's hex data, reveal underlying internal content, and if our analysis detects a supported embedded format, viewing or conversion may still be possible.
Convert.Guru analyzes your OBN file, detects the exact format, and lets you read the text inside.
If you want to convert OBN file to , you can use OpenIV or similar software from the "Game Collision Boundary Data" category. In the File menu, look for Save As… or Export….
To convert files to OBN, try OpenIV or another comparable tool in the "Game Collision Boundary Data" category.
The OBN Converter Story
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our OBN converter.