.obj — Wavefront OBJ File
Wavefront Technologies · 1992
OBJ (Wavefront OBJ) is a simple, widely-supported 3D model format that stores geometry data including vertices, texture coordinates, normals, and faces.
Key Features
- Plain text storage behavior for typical 3d workflows
- Common MIME type: model/obj
- Recognizable file signature: Plain text, starts with # or v
- Associated with Wavefront Technologies
Best For
- Design and modeling pipelines
- Exchanging geometry or scene data
- Technical visualization
Less Ideal For
- Simple document sharing
- Quick photo publishing
- Low-complexity note taking
Common Use Cases
- 3D modeling and CAD workflows
- Game or product asset exchange
- Rendering and simulation pipelines
How to Open It
- On Windows, open the file with Blender or 3ds Max.
- On macOS, open the file with Blender or Preview.
- If the file does not open, confirm that the extension really matches .obj and that the download or transfer completed without corruption.
What is a .obj file?
OBJ (Wavefront OBJ) is a simple, widely-supported 3D model format that stores geometry data including vertices, texture coordinates, normals, and faces. OBJ files are plain text and often paired with MTL (Material Template Library) files for defining materials and textures. The format is commonly used for 3D model exchange between different software applications, game development, and 3D visualization.
Programs That Open .obj Files
| Platform | Program | ||
|---|---|---|---|
| Windows | Blender | Free | |
| 3ds Max | Paid | ||
| MeshLab | Free | ||
| macOS | Blender | Free | |
| Preview | Free |
Common Problems with .obj Files
Frequently Asked Questions
.obj files can be opened with several programs. Blender is one of the most popular choices.
Generally yes, .obj files are safe to open with appropriate software.
Yes, there are many online and offline tools available to convert .obj files. Check the conversion section above for specific methods.
Technical Details
Wavefront OBJ File files use the model/obj MIME type and were first introduced in 1992 by Wavefront Technologies. The file can be identified by its signature: Plain text, starts with # or v.