Observed arrival · 2026-10-27
3MF to STL: Know What You Export
A browser-based 3MF-to-STL converter with model preview, part selection, and batch ZIP export.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- 3D-printing users who need STL compatibility
- Worth noticing
- It rejects slicer projects with recognized negative parts or modifiers instead of flattening them into potentially misleading geometry.
Field notes
The converter describes support for Core 3MF meshes and components, including build placement, rotation, scale, and mirrored transforms. It converts source units from microns through meters into millimeter coordinates, while same-unit cross-file production references are also supported. The page sets limits on input size, unpacked content, triangles, and mesh instances, and says ZIP64 and encrypted packages are unsupported.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
One card from the complete issue