.OBJ File Extension

.OBJ File Extension

File Type 1

Wavefront 3D Object File

Developer Wavefront Technologies
3.9  |  232 Votes
Category 3D Image Files
Format Text

What is an OBJ file?

An OBJ file is a standard 3D image format that can be exported and opened by various 3D image editing programs. It contains a three-dimensional object, which includes 3D coordinates, texture maps, polygonal faces, and other object information. OBJ files may also store references to one or more .MTL files that contain surface shading material for the object.

More Information
Screenshot of a .obj file in Microsoft 3D Builder
OBJ file open in Microsoft 3D Builder

The OBJ format is considered to be a universal 3D model format since it is widely supported by 3D image editing applications. The format is simple and text-based, which is one reason why many programs use it. However, the simple format structure may also lead to huge OBJ file sizes if they store large and complex 3D objects.

You may encounter an OBJ file in a variety of ways, such as when modifying 3D objects in a video game, creating visual effects for a film, or designing a 3D mockup of a real-life object or building. Since the OBJ 3D format is so widely supported, many users export their models as OBJ files when transferring them from one 3D program to another or when sharing a 3D model with a co-worker.

NOTE: While the OBJ format is one of the most common formats used for storing 3D models, it is only one of many options for saving models. Some other options include .DAE, .STL, .IGS, .FBX, .MAX, .DWG, and .3DS.

How do I open an OBJ file?

If you receive an OBJ file you can choose from a large number of free and commercial applications to open it. However, you should select the program based on the context in which the OBJ file will be used. For example, if you are looking to open and modify a 3D object utilized in film special effects and are on a tight budget, you could use the free Blender software.

Open over 400 file formats with File Viewer Plus.Free Download

Programs that open or reference OBJ files

Updated June 16, 2020
File Type 2

Relocatable Object Code

Developer N/A
3.6  |  42 Votes
Category Data Files
Format N/A

What is an OBJ file?

Object data that is referenced by many types of programs

Programs that open OBJ files

Various programs
Various programs
Updated 2006

Verified by FileInfo.com

The FileInfo.com team has independently researched all file formats and software programs listed on this page. Our goal is 100% accuracy and we only publish information about file types that we have verified.

If you would like to suggest any additions or updates to this page, please let us know.