Extract perfectly. Render instantly.
Local Client ProcessingGet clean, print-ready STL mesh models from any 3MF slicer project files. Secure boundary extraction right in your browser. No server upload.
Drop 3MF file here
or browse your computer
Max 100 MB
STL only keeps mesh geometry. Printer profiles, colors, textures, supports, and modifiers are not preserved.
Core Capabilities
100% Local Privacy
Your files never leave your device. All conversion happens securely in your browser using local geometry processing.
Lightning Fast
Instant boundary extraction. Get clean STL meshes from complex 3MF assemblies in milliseconds, not minutes.
High Fidelity
Preserves the exact geometric precision of the original model. Say goodbye to artifacts and mesh degradation.
Format Comparison
| Aspect | 3MF | STL |
|---|---|---|
| Geometry | Mesh (triangles) | Mesh (triangles) |
| Multiple objects | Build items + components | Single mesh or manual split |
| Colors / Materials | Supported | Not supported |
| Print settings | Printer, filament, AMS | Not supported |
| Universal support | Varies by slicer | Near-universal |
What Gets Lost
Preserved
- Mesh triangles
- Baked geometries
- Relative placements
Discarded
- Printer & filament targets
- Colors and materials
- Supports & modifiers
Frequently Asked Questions
Will my file be uploaded to a server?+
No — everything runs in your browser. Files never leave your device.
Why convert 3MF to STL?+
STL is widely supported and strips slicer-specific configuration baggage.
What if my 3MF has multiple parts?+
Each build item is exported as its own STL and bundled into a ZIP download.
Is there a file size limit?+
Yes. Files above 100 MB are blocked to keep in-browser conversion stable.
Does this work on phone?+
Yes for browsing and smaller files. Large files are best converted on desktop.