Online 3MF Print Viewer
Inspect modern multi-color, multi-material 3MF 3D print projects directly in your browser. 100% local, secure, and instant.
Drag & drop your 3MF file here
or click below to select from your device (100% private, zero uploads)
3MF Technical Specifications & Guidelines
In-depth technical reference for 3D Manufacturing Format.
| Supported Extensions | .3mf |
| Format Category | Additive Manufacturing & Slicing |
| File Encoding | Open Packaging Conventions (ZIP containing XML models & textures) |
| Compatible CAD & 3D Software | Bambu Studio, PrusaSlicer, OrcaSlicer, UltiMaker Cura, Fusion 360 |
| Archive Format | ZIP container following 3MF Consortium Core Specification v1.3 |
| Color Handling | Supports base materials, color groups, and vertex UV mapping |
| Assembly Support | Preserves object components, transforms, and build plate positioning |
| Client Safety | Unzipped and parsed in memory in your browser, with zero cloud transit |
3MF Frequently Asked Questions
Everything you need to know about opening, inspecting, and converting 3MF files in your browser.
What is 3MF and why is it preferred over STL?
3MF (3D Manufacturing Format) is a modern XML-based format developed by a consortium including Microsoft, Prusa, Bambu Lab, and Ultimaker. Unlike STL which only stores raw triangles, 3MF stores multi-color materials, accurate unit scaling, multiple parts, and print configurations in a single compact file.
Can I view Bambu Studio or PrusaSlicer 3MF project files?
Yes. Universal 3D Viewer extracts the 3D model geometry and material colors packaged inside slicer 3MF files, enabling instant 3D inspection on any device without launching desktop slicing software.
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