Free Online GLB to OBJ 3D Model Format Converter

Convert 3D models between different formats online. Free and easy to use, supporting conversion between mainstream formats like GLB, GLTF, OBJ, STL and more. No software installation required - complete conversions directly in your browser.

Source Format

Target Format

or drag and drop file

Maximum file size: 50MB

Supported formats: GLB, GLTF, OBJ, STL, VOX, PLY

Multi-Format 3D Model Preview

Support online preview of mainstream 3D file formats including GLB, GLTF, OBJ, STL, USDZ, etc., view 3D model details without downloading software.

No Software Installation Required

No need to install any 3D software or plugins, directly open 3D files in browser with support for rotation, scaling, fullscreen and other interactive operations.

Free for All 3D Files

Support online preview of 3D models of various complexity, from simple geometry to complex scenes, completely free to use with no file size restrictions.

View on Any Device

Support desktop, tablet and mobile devices, responsive design ensures optimal 3D viewing experience across different screen sizes.

Privacy Protection

Your 3D files are only processed and previewed locally in the browser, not uploaded to servers, ensuring your model data is completely safe and private.

How to Convert GLB to OBJ

Upload GLB File

Simply drag and drop your GLB file into the designated area or click to select files. Supports popular formats including GLB, GLTF, OBJ, STL with maximum file size of 50MB.

Convert to OBJ

Select OBJ from the dropdown menu. Our tool automatically preserves geometry details, materials, and textures during conversion without requiring technical knowledge.

Download Your Model

Once conversion completes in seconds, click the download button to save your OBJ 3D model. Can be used for 3D software editing or uploaded to other platforms for texturing.

GLB to OBJ Converter - FAQ

Frequently asked questions about converting GLB to OBJ format and our 3D file conversion service.

What file formats do you support for conversion?

We support conversion between GLB, GLTF, OBJ, and STL formats. All conversions are bidirectional, so you can convert any supported format to any other supported format. Our advanced conversion engine maintains geometric precision, material properties, and texture quality across all format transformations. Whether you're converting for web deployment, 3D printing, or software compatibility, our tool handles complex models efficiently.

How long does the conversion take?

Most conversions complete within seconds. The processing time depends on the file size and complexity, but our optimized algorithms ensure fast conversion for files up to 50MB. Our WebAssembly-powered conversion engine processes files locally for maximum speed and privacy. Complex models with high polygon counts or multiple textures may take slightly longer, but typically finish within 30 seconds.

Is my file data secure during conversion?

Yes, absolutely. All files are processed locally in your browser using WebAssembly technology. Your files never leave your device, ensuring complete privacy and security. No data is transmitted to external servers, no temporary cloud storage is used, and all processing happens entirely within your browser environment. This guarantees that sensitive or proprietary 3D models remain completely confidential throughout the conversion process.

Do you preserve textures and materials during conversion?

Yes, we automatically preserve geometry details, materials, and textures during conversion whenever the target format supports them. Some format limitations may apply (e.g., STL doesn't support materials). Our intelligent conversion algorithms analyze source materials and adapt them to the target format's capabilities. When converting to formats with limitations, we provide clear notifications about which features will be preserved or modified during the conversion process.

Can I use the converter on mobile devices?

While our converter works on mobile devices, we recommend using a desktop or tablet browser for the best experience, especially when working with larger 3D files. Mobile devices may have memory limitations that affect processing speed for complex models. For optimal performance with files over 10MB or models with high polygon counts, desktop or tablet devices provide better processing power and memory allocation for smooth conversions.

Is the conversion service free?

Yes, our 3D file converter is completely free to use. No registration required, no watermarks, and no limitations on the number of conversions. Convert as many files as you need without restrictions on file types, conversion frequency, or output quality. All features are available to everyone at no cost, making professional 3D file conversion accessible to creators, developers, and professionals worldwide.

Why is OBJ format so widely compatible?

OBJ is one of the oldest and most universal 3D formats, supported by virtually all 3D software including Blender, Maya, 3ds Max, and others. It's text-based and simple, making it extremely reliable for data exchange. Developed in the 1980s by Wavefront Technologies, OBJ has become the de facto standard for 3D model interchange due to its straightforward ASCII format and widespread adoption.

Does OBJ support materials and textures?

Yes, OBJ files can be accompanied by MTL (Material Template Library) files that define materials and textures. Our converter preserves these material definitions when converting to/from OBJ. MTL files specify diffuse, specular, ambient properties, bump maps, and transparency settings. When converting from formats with advanced materials, our converter intelligently maps PBR properties to compatible MTL parameters, ensuring the best possible material representation in the OBJ format.

What are the advantages of GLB format?

GLB is a binary format that packages all 3D assets (geometry, materials, textures, animations) into a single file. It's perfect for web applications, AR/VR, and situations where you need a compact, self-contained 3D model. The single-file architecture eliminates dependency management issues and ensures consistent loading across different platforms. GLB files are optimized for streaming and mobile deployment, making them ideal for e-commerce, gaming, and interactive web experiences.

Why are GLB files usually smaller than other formats?

GLB uses binary encoding and efficient compression, making files significantly smaller than text-based formats like GLTF or OBJ. This makes GLB ideal for web deployment and faster loading times. The binary structure eliminates redundant formatting and whitespace found in text formats, while advanced compression algorithms reduce texture and geometry data size by up to 60%. This efficiency is crucial for bandwidth-limited environments and mobile applications.

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