PNG to STL Converter
Turn transparent PNG logos, badges, silhouettes, and grayscale heightmaps into watertight 3D printable STL models ready for any slicer.
Technical principle
Use a high-resolution source and inspect the generated bounds before printing. The exporter turns the source into a bounded triangle mesh and exposes the selected units, tessellation, or image settings before download. Review the bounding box,…
Parameters at a glance
| Parameter | Value | Why it matters |
|---|---|---|
| Input format | .PNG | Accepted source file extension. |
| Output format | STL | Geometry or archive produced by this route. |
| File size | Up to 250 MB | Upload guardrail before parsing or conversion. |
| Mesh review | Preview, normals, open edges | Check geometry before download or slicing. |
| Resolution | Adjustable | Controls the generated geometry. |
| Width | Adjustable | Controls the generated geometry. |
| Height | Adjustable | Controls the generated geometry. |
| Base | Adjustable | Controls the generated geometry. |
How Alpha Transparency and Heightmap Extrusion Work
PNG to STL conversion analyzes pixel alpha and luminance. Transparent pixels can be ignored or mapped to an optional baseplate while opaque shapes are extruded along the Z axis into solid triangle meshes for keychains, stamps, badges, and embossing.
Frequently Asked Questions
Should I use a transparent PNG for the best STL result?
High-contrast PNG images with a transparent background produce clean silhouette cutouts without an unwanted rectangular border.
How do I avoid pixelated edges on a printed PNG logo?
Use a high-resolution image with anti-aliased edges, or choose SVG to STL when you have the original vector artwork.
Is the generated PNG to STL mesh watertight?
The extrusion caps the top and bottom and stitches supported perimeter walls into a closed Binary STL. Review the result in STL Checker before printing.