Convert Wavefront OBJ to GLB, STL, PDF (Free)
No upload, no signup, no software to install
Why Convert Wavefront OBJ Files?
Used by 3ds Max, Maya, Cinema 4D, Blender, Rhino, MeshLab, ZBrush, and just about every 3D modeling tool ever made. Often the format of last resort when nothing else works.
Converting to a more widely supported format means your model can open in any 3D tool, slicer, web viewer, or AR app — without asking the recipient to install specialized software.
How to Convert a Wavefront OBJ File
- 1
Open your Wavefront OBJ file
Click "Open a Wavefront OBJ File" above, or drag and drop your .obj file onto the converter.
- 2
Choose an output format
Click the "Export" button in the toolbar and select GLB, STL, PDF.
- 3
Download the converted file
Your file downloads instantly. Everything runs in your browser — nothing is uploaded.
Output Formats
Wavefront OBJ to GLB (glTF Binary)
Universal 3D format. Open in Blender, Unity, Unreal Engine, web viewers, AR/VR apps, and Google’s model-viewer. Materials, textures, and PBR survive the round trip.
Wavefront OBJ to STL (Stereolithography)
The standard for 3D printing. Upload directly to your slicer (Cura, PrusaSlicer, Bambu Studio) or a 3D printing service. Also used for CNC machining and FEA simulation.
Wavefront OBJ to PDF (Snapshot)
Export the current camera view as a one-page PDF with header and footer captions — ideal for presentations, submittals, and email handoffs.
Compatibility & Format Notes
Full support for triangle and quad meshes, vertex normals, texture coordinates, smooth groups, and material references via mtllib. The companion .mtl file must be reachable from the OBJ URL for materials to load — drop the .mtl alongside the .obj.
Your Files Stay on Your Computer
Both parsing and conversion run entirely in your browser. The exported files are generated locally and downloaded directly to your device — nothing is uploaded to any server.
Frequently Asked Questions
▶Do I need to load the .mtl file too?
Only if you want materials. When the OBJ references an .mtl file via the mtllib directive, the viewer fetches it from the same path. If only the .obj is available, the geometry renders in a default gray.
▶What about textures?
Image textures referenced by the .mtl file are loaded automatically as long as they live alongside the .obj. Drop the full folder (or zip and serve from a URL) for the complete look.
▶Why is OBJ still used when glTF exists?
OBJ is older, simpler, and supported by every 3D tool ever made — including legacy software that hasn’t shipped a glTF importer. For complex modern workflows, GLB / glTF is usually the better choice; for “will it open in literally anything,” OBJ is hard to beat.
▶Can I convert OBJ to GLB or STL?
Yes. Click Export in the toolbar and choose GLB (glTF binary), STL (3D printing), or PDF (snapshot).
▶Is this OBJ viewer really free?
Yes, completely free. No signup, no watermarks, no file size limits on the viewer (the optional share-link feature has a 30 MB upload cap). Built by Innerscene as a tool for architects, engineers, and designers.
▶Are my files uploaded to a server?
No. All parsing, rendering, and conversion runs in your browser — nothing is uploaded, stored, or transmitted by default. The Share button is the only feature that uploads a file, and only when you explicitly click it.
▶Can I convert to another format?
Yes. Click Export in the toolbar to save as STL (3D printing), OBJ (Wavefront), GLB (glTF binary), or PDF (snapshot of the current view).
▶Can I embed this viewer on my own site?
Yes. Click Embed in the toolbar to generate a one-line <iframe> snippet you can paste into any HTML page. You can choose whether the embed shows the viewer’s toolbar.