OBJ 3D Model — Wavefront OBJ geometry definition file.
Quick facts
What is .obj
A .obj file is a OBJ 3D Model — Wavefront OBJ geometry definition file.
In the mime-db registry it maps to model/obj. When serving .obj over HTTP, set the Content-Type header as shown in Developer info below.
Related entities: it maps to model/obj and is used by Wavefront Object among others — and is delivered over HTTP via the Content-Type header.
How to open .obj files
Developer info
When served over HTTP, responses should set the following header:
Content-Type: model/obj
Common software that reads/writes .obj:
Relation chain
Related extensions
Related MIME types
Related programming languages
Common uses
How to edit .obj files
How to create .obj files
Frequently asked questions
Common options include Blender, MeshLab, Windows 3D Viewer. You can also open many of these files with built-in viewers or a browser.
Create a new file in any text editor or the app that owns the format and save it with the .obj extension.
model/obj is the media type identifier used for .obj files during network transfer (for example in the HTTP Content-Type header).
Sources & standards
Updated 2026-08-18
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