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Convert OBJ to GLB Online - Free OBJ to GLB 3D Converter
Convert your OBJ (Wavefront OBJ) files to GLB (GL Transmission Format Binary) format effortlessly with LetsConvert. Our OBJ to GLB converter uses Assimp to deliver accurate 3D model conversion preserving geometry, normals, and materials. No software installation required.
How to Convert OBJ to GLB?
Converting OBJ to GLB has always been easy using our converter. Here's how:
Step 1: Upload your file
Click the 'Upload' button to upload the OBJ file you want to convert to GLB.
Step 2: Step 2: Select the File Format
Select the file format to convert the files to. It must be an GLB.
Step 3: Edit options
Now, you have multiple options like quality, resize etc, based on OBJ and GLB file format.
Step 4: Download Converted File
Once the conversion is complete, click the 'Download' button to save the converted GLB file hassle-free!
Key Benefits of Converting from OBJ
OBJ (Wavefront Object) is one of the oldest and most universally supported 3D file formats, developed by Wavefront Technologies in the 1980s. OBJ stores geometry as plain text — vertices, normals, UV coordinates, and face definitions — paired with an MTL file for material information. Its simplicity makes it readable by virtually every 3D application, but its text-based nature and lack of support for animations, bones, or complex material graphs limit its use in modern pipelines.
Why Convert OBJ Files?
Converting from OBJ lets you move into formats that support animations (FBX, GLTF), richer material definitions (GLTF, USDC), or 3D printing workflows (STL, 3MF). OBJ's paired MTL file can also cause import problems — converting to a self-contained format like GLB or ASSBIN bundles everything in a single file for cleaner distribution.
How LetsConvert Handles OBJ to GLB Conversion
LetsConvert uses the industry-leading Assimp (Asset Import Library) to convert OBJ (Wavefront OBJ) files to GLB (GL Transmission Format Binary) format. Assimp supports over 40 3D import formats and 22 export formats, making it the most comprehensive open-source 3D conversion library available.
OBJ to GLB Conversion Process
Upload your OBJ file and LetsConvert will parse the complete 3D scene including meshes, materials, and hierarchies, then export the result in GLB format. The conversion preserves geometry, normals, UV coordinates, and material information where both formats support the same data. Your converted GLB file is ready for download immediately after processing.
Why Convert to GLB
LetsConvert's OBJ to GLB converter creates a binary GLTF 2.0 file — all geometry, textures, animations, and materials packed into a single self-contained binary file. GLB is the preferred delivery format for AR experiences, web viewers, and any scenario where a single-file 3D asset is required.
GLB Output Advantages
Unlike GLTF (which references external texture files), GLB bundles everything in one file for frictionless distribution. It is supported by model-viewer, Three.js, Babylon.js, Sketchfab, Apple AR Quick Look, and Android Scene Viewer, making it the top choice for web and mobile 3D delivery.
Frequently Asked Questions: OBJ to GLB
Is the OBJ to GLB conversion free?
Yes. LetsConvert's OBJ to GLB converter is completely free to use with no registration required for standard conversions.
Will my OBJ file's geometry be preserved during conversion to GLB?
Yes. LetsConvert preserves mesh geometry, normals, and UV coordinates during conversion. Material and animation data are preserved where both the OBJ and GLB formats support the same features.
What is OBJ (Wavefront OBJ)?
OBJ is a 3D file format used for storing three-dimensional model data. See the section above for details about the OBJ format.
What is GLB (GL Transmission Format Binary)?
GLB is a 3D output format. Converting your OBJ to GLB allows you to use the model in applications and workflows that require the GLB format.
How long does OBJ to GLB conversion take?
Most OBJ to GLB conversions complete in seconds. Larger files with many polygons or embedded textures may take slightly longer.