Free OBJ Viewer Online — Preview Your 3D Models
Preview your OBJ (Wavefront Object) 3D models directly in your browser.
Last updated Mar 2026
More tools for OBJ
When to Use OBJ Viewer
Pre-Import Validation
Before importing OBJ to Blender, Maya, or Unity, preview it to check geometry integrity, material assignments, and model quality. Found mesh issues? Use our OBJ Repair tool to fix holes and topology errors automatically.
TurboSquid/CGTrader Download Check
Downloaded a model from TurboSquid or CGTrader (OBJ export)? Preview it to verify quality and contents before purchasing premium models.
Blender Export Verification
Exported from Blender? Preview to confirm geometry and materials are embedded correctly in the OBJ file. Need to send it to a 3D printer? Convert OBJ to STL first.
Model Comparison
Compare multiple OBJ variants (low-poly vs high-poly, original vs remeshed) by opening multiple browser tabs. Too many polygons? Simplify your OBJ to reduce polygon count while preserving shape.
Quick Mobile Preview
View OBJ files on your phone or tablet while browsing 3D model marketplaces. No need to transfer files to desktop.
What You Should Know
OBJ File Format Explained
OBJ (Wavefront Object) was created by Wavefront Technologies in the 1980s and remains the most widely supported 3D interchange format. It is a plain-text format that stores vertex positions (v), texture coordinates (vt), vertex normals (vn), and face definitions (f). Unlike STL, OBJ supports quads, n-gons, UV mapping, and material references. The format is human-readable — you can open an .obj file in any text editor to inspect or debug geometry data. OBJ is the default export format for Blender, Maya, 3ds Max, Cinema 4D, ZBrush, and most CAD software.
OBJ Multi-File Structure (.obj + .mtl + textures)
A complete OBJ model typically consists of three parts: the .obj file (geometry), an .mtl file (material library defining colors, shininess, and texture paths), and image files (PNG, JPG, or TGA textures). The .obj file references the .mtl with a "mtllib" directive, and the .mtl references textures with "map_Kd" (diffuse), "map_Ks" (specular), and other map types. This viewer supports single-file OBJ uploads. For multi-file models with separate textures, convert to GLB first — GLB bundles everything into one binary file.
OBJ vs Other 3D Formats
OBJ vs STL: OBJ supports materials and textures, STL only stores triangle geometry. OBJ vs GLB: GLB is a binary format with built-in PBR materials and animation support, better for web and AR (GLB vs glTF comparison). OBJ vs FBX: FBX supports animation and skeletal rigs, OBJ is geometry-only. Choose OBJ when you need maximum software compatibility or human-readable geometry data.
Browser Performance & Limits
This viewer renders OBJ files using WebGL with Three.js. Desktop browsers handle files up to 150 MB and models with 2M+ faces. Mobile browsers support up to 25 MB. OBJ text parsing is slower than binary formats (GLB, STL) for the same polygon count — a 1M face OBJ may take 2-3 seconds to parse vs under 1 second for the equivalent GLB. For very large models, simplify first or convert to GLB for faster loading.