Free Online 3D Model Viewer
View GLB, OBJ, STL, and FBX files directly in your browser. No software to install, no account required. Your files stay on your device — completely private and secure.
Drag & drop your 3D file here
or click to browse — supports .glb, .obj, .stl, .fbx
All processing happens in your browser. Files never leave your device.
How to View 3D Models Online
Viewing 3D files in your browser takes just three simple steps. No software downloads, no plugins, and no account registration needed.
1. Upload Your File
Drag and drop a GLB, OBJ, STL, or FBX file onto the upload area, or click to browse your files. The file stays entirely on your device and is processed locally.
2. Inspect the Model
Your 3D model renders instantly in the WebGL viewport. Rotate with left-click drag, pan with right-click, and zoom with the scroll wheel. On mobile, use touch gestures.
3. Customize the View
Toggle wireframe mode to examine mesh topology, switch background colors for better contrast, reset the camera to the default position, or go fullscreen for a detailed look.
What Is a 3D Model Viewer?
A 3D model viewer is a software tool that lets you open, inspect, and interact with three-dimensional files without needing a full 3D modeling application like Blender, Maya, or 3ds Max. Online 3D viewers run directly in your web browser using WebGL technology, making them accessible from any device with a modern browser.
Professional 3D artists, game developers, architects, engineers, and 3D printing enthusiasts use online viewers to quickly preview models, share work with clients, verify exported files before printing, and check model integrity without launching heavy desktop software. An online viewer is especially useful for reviewing files received from collaborators or downloaded from asset marketplaces.
Image3D's viewer supports the four most widely used 3D file formats: GLB (the binary container for glTF, the standard for web-based 3D), OBJ (a legacy format still popular in CAD and 3D printing workflows), STL (the standard for 3D printing and rapid prototyping), and FBX (common in game engines and animation pipelines). Each format has different strengths, and our viewer handles them all with consistent, high-quality rendering.
Supported 3D File Formats
Our viewer handles the most common 3D formats used across industries, from game development to 3D printing and architectural visualization.
GL Transmission Format
The modern standard for 3D on the web. GLB bundles geometry, textures, materials, and animations into a single binary file. Supported by Blender, Unity, Unreal Engine, and every major browser. Best choice for sharing and viewing 3D models online.
Wavefront OBJ
One of the oldest and most widely supported 3D formats. Stores geometry and UV coordinates. Textures require separate MTL and image files. Still the go-to format for CAD exports, 3D scanning output, and cross-software compatibility.
Stereolithography
The standard format for 3D printing and rapid prototyping. STL files store only surface geometry as triangulated meshes. Ideal for checking printability, verifying mesh integrity, and previewing slicing results before sending to your printer.
Filmbox (Autodesk)
A proprietary format from Autodesk used extensively in game development and film production. Supports geometry, materials, animations, and skeletal rigs. Common in Unity, Unreal Engine, and Maya workflows. Note: FBX support is in beta.
Why Use Image3D's Online Viewer
A fast, private, and free tool built for professionals and hobbyists who need to quickly inspect 3D models without the overhead of desktop software.
No Installation Required
Works directly in Chrome, Firefox, Safari, or Edge. No plugins, no downloads, no software to keep updated. Just open the page and drop your file.
Completely Free
No subscription, no usage limits, no watermarks. View as many 3D files as you want at any size. The viewer will always remain free to use.
100% Private
Your files never leave your device. All rendering happens locally in your browser using WebGL. Safe for proprietary models, NDA-protected assets, and confidential designs.
Multi-Format Support
Handles GLB, GLTF, OBJ, STL, and FBX files. Whether you work in game dev, CAD, 3D printing, or architectural viz, your format is supported.
Mobile Friendly
Fully responsive design with touch gesture support. Review 3D models on your phone or tablet while on the go, in meetings, or on the factory floor.
Instant Loading
Optimized WebGL rendering pipeline loads models in seconds. No server round-trips or processing queues. The file goes straight from your disk to the GPU.
Frequently Asked Questions
Everything you need to know about using the Image3D online 3D viewer.
Image3D's free online viewer supports GLB (GL Transmission Format Binary), OBJ (Wavefront), STL (Stereolithography), and FBX (Filmbox) files. GLB is the recommended format for web viewing because it packages geometry, textures, materials, and animations into a single compact binary file. OBJ is great for geometry-only previews, STL for 3D printing verification, and FBX for animation and game asset review.
No, absolutely not. All processing happens entirely in your browser using WebGL and Three.js. Your 3D files are read locally from your device's memory and rendered by your GPU. Nothing is sent to any server. This makes the viewer safe for proprietary models, NDA-protected work, and confidential client files. You can even disconnect from the internet after the page loads and the viewer will continue to work.
There is no hard file size limit since everything runs locally on your machine. Performance depends on your device's GPU and available RAM. Most modern laptops and desktops handle files up to 100MB with smooth, real-time interaction. Models between 100MB and 500MB may load more slowly but will still render. For the best experience with very large models, we recommend using a device with a dedicated GPU and at least 8GB of RAM.
Yes, the viewer is fully responsive and works on both iOS and Android devices. Touch gestures are fully supported: use one finger to rotate the model, two fingers to pan the view, and pinch to zoom in and out. For the smoothest mobile experience, we recommend keeping file sizes under 30MB on phones and under 60MB on tablets. Safari on iOS and Chrome on Android both provide excellent WebGL performance.
OBJ files store only geometric data (vertices, faces, normals, UV coordinates). Textures and material properties are defined in separate MTL files and associated image files (PNG, JPG). Since our viewer processes a single file upload, it renders OBJ geometry with a high-quality default material. If you need to view a model with full textures, we recommend converting it to GLB format using Blender (File > Export > glTF 2.0) which bundles all assets into one file.
The viewer uses standard 3D navigation controls. On desktop: left-click and drag to rotate the model around its center, right-click and drag to pan the view, and use the scroll wheel to zoom in and out. On touchscreens: one finger to rotate, two fingers to pan, pinch to zoom. The toolbar above the viewport provides additional controls: Wireframe mode shows the mesh topology, Background lets you cycle through dark, light, and neutral backdrops, Reset returns the camera to its starting position, and Fullscreen expands the viewport to fill your entire screen.
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