How to convert your OBJ file
- Click the "Select File" button above, and choose your OBJ file.
- You'll see a preview.
- Click the "Convert file to..." button to save your file in the format you want.
Convert OBJ to another file type
The converter easily converts your OBJ file to various formats - free and online. No Blender or extra software needed.
- OBJ to STL
- OBJ to SKP
- OBJ to GLB
- OBJ to FBX
- OBJ to STEP
- OBJ to DWG
- OBJ to 3DS
- OBJ to 3MF
- OBJ to USDZ
- OBJ to DAE
- OBJ to MAX
- OBJ to BLEND
Convert a file to OBJ
The converter also works in reverse, so you can convert other 3D formats to OBJ with high quality output.
- DWG to OBJ
- DAE to OBJ
- X3D to OBJ
- IGES to OBJ
- WRL to OBJ
- JT to OBJ
- SKP to OBJ
- 3DS to OBJ
- 3DM to OBJ
- STEP to OBJ
- FBX to OBJ
- PLY to OBJ
About OBJ files
The .OBJ extension primarily refers to the Wavefront 3D Object file, a widely supported geometry definition format. It stores 3D model data - specifically vertices, texture coordinates (UVs), normals, and faces - in a plain text (ASCII) structure. Because it is human-readable and open, it has become the universal "lingua franca" for exchanging static 3D models between software like Blender, Autodesk Maya, and ZBrush.
Despite its popularity, the .OBJ format has significant limitations for modern workflows. First, it does not support animation, skeletal rigging, or complex scene hierarchies, making it unsuitable for game development pipelines that require character movement. Second, because it relies on a companion MTL file to define materials and textures, users often face "broken" models where textures are missing because the linked MTL file was lost or the directory paths are incorrect. Third, as an uncompressed text format, high-resolution .OBJ files can become incredibly large and slow to parse compared to binary alternatives.
To overcome these constraints, conversion is often necessary:
- For Web & AR: Convert .OBJ to GLB (glTF Binary). This packs geometry and textures into a single, highly compressed file optimized for fast loading in browsers.
- For 3D Printing: Convert .OBJ to STL for slicer compatibility, or 3MF for higher fidelity.
- For Game Engines: Convert .OBJ to FBX to gain support for more complex metadata, though note that OBJ itself cannot add animation data during conversion.
A secondary, unrelated use of the .OBJ extension is for Relocatable Object Code generated by compilers like Microsoft Visual Studio. These are binary intermediate files created during software compilation and cannot be opened or viewed as 3D graphics.
Use Convert.Guru to open and convert your OBJ file.
Users also converted 3D, BBMODEL, MTL, RBXM, FBX, GLB, DFF, ZIP, YDR, GLTF, YDD, STL and VRM files.
The OBJ 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 OBJ converter.