Convert a Zipped 3D Model to 3MF for Modern Slicers
Upload a ZIP archive containing your model, and get back a 3MF ready for Bambu Studio, PrusaSlicer, or Cura — including color and material data when your source format supports it.
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Why Convert ZIP to 3MF?
Unlike STL, 3MF can carry color and material information — so converting a textured model from a ZIP into 3MF preserves more of the original design than converting to plain STL would.
Our engine identifies the mesh file inside your archive, resolves its material and color references, and packages everything into 3MF’s structured container.
This is the better target than STL specifically when your source ZIP contains material or color data you want to carry into your slicer, rather than just geometry.
How to Convert ZIP to 3MF
- Upload a ZIP containing your mesh, materials, and textures.
- MiConvert resolves the mesh's material and color references inside the archive.
- Download the converted 3MF file.
- Open in your slicer to check color and material assignments.
Key Conversion Features
- Preserves color and material data from your source model, unlike plain STL
- Automatically resolves mesh and material references inside the ZIP
- Compatible with Bambu Studio, PrusaSlicer, Cura 5+, and other modern slicers
- Combines multi-object archives into a single print-ready 3MF build
- Free for archives up to 50MB, 100MB for registered accounts
Video Tutorial
Are you struggling with how to convert your ZIP file to 3MF format? Don't worry, in this video I will reveal a super convenient tool to help you change your file extension completely for free without
Frequently Asked Questions
Why choose 3MF over STL for a zipped model?
3MF preserves color and material data that STL simply can’t carry — if your source model has meaningful material assignments, 3MF keeps more of the original design intact.
What should my ZIP contain for the best results?
One mesh file with its material definitions and any texture/color data together, ideally at the top level of the archive.
Why do some ZIP-to-3MF conversions fail?
Usually a mismatch between the mesh file and its referenced materials/textures inside the archive, or multiple competing mesh files with no clear primary asset.
Will multi-object archives be combined into one 3MF?
Yes — multiple objects are packaged into a single 3MF build, positioned as in the source files, matching how a print job is represented.
What’s the maximum ZIP size?
50MB for free conversions, 100MB for registered accounts.