Convert 3D object files (OBJ) online for free
The converter easily converts your OBJ 3D objects to various formats - free and online. No Blender or or other 3D software needed.
The converter also works in reverse, so you can convert other "Wavefront 3D Object Model" formats to OBJ without using software like Blender or a similar tool.
The .OBJ (Wavefront 3D Object) file is a universally accepted standard for storing 3D geometry data. Originally developed by Wavefront Technologies, it stores vertex coordinates, texture vertices, and polygonal faces. It is widely supported by nearly all 3D modeling software, including Blender, Autodesk 3ds Max, and Cinema 4D. A secondary, less common use for .OBJ files is as compiled intermediate object code generated by C/C++ compilers like Microsoft Visual Studio.
While highly compatible, the 3D .OBJ format has severe practical disadvantages for modern workflows. Because it stores data as plain ASCII text, high-poly models result in massive file sizes that take forever to upload, load, and parse. Furthermore, .OBJ does not support animations, rigging, or complex material hierarchies - it relies entirely on a separate MTL file for basic material definitions, which often gets lost when sharing files.
For 3D printing, you should convert .OBJ to STL. For web development, AR/VR, or game engines, convert to GLTF or GLB for significantly smaller, faster-loading binary assets. For transferring models with animations and scene hierarchies, convert to FBX. Drag and drop your file to analyze and convert it - free, online, and without installing software.
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.
If you want to convert OBJ file to SKP, STEP, DWG, USDZ, DAE, MAX or BLEND, you can use Blender or similar software from the "3D Geometry Definition" category. In the File menu, look for Save As… or Export….
To convert DWG, IGES, WRL, JT, SKP or 3DM files to OBJ, try Blender or another comparable tool in the "3D Geometry Definition" category.
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.