Logo → STL
Create raised badges, signs, nameplates and decorations from clean PNG logos.
01 PNG shape and relief conversion
PNG to STL Converter
Convert PNG images, logos and artwork into 3D-printable STL files. Use transparency as the shape, adjust thickness and height, preview the 3D model, and download the STL.
Free · No sign-up Your PNG never leaves your device Transparent PNG supported
or drop your PNG herePNG · Max 20 MB · processed locally
DRAG TO ROTATE · RIGHT-DRAG TO PAN · SCROLL TO ZOOM02 Online converter
Convert PNG to STL Online
Convert PNG to STL directly in your browser. Upload a PNG image, choose whether the file should become an extruded shape or a height-map relief, then export an STL file for 3D printing.
This free PNG to STL converter is built for logos, icons, transparent artwork, line art and screenshots. For transparent PNG logos and icons, start with Shape mode so the transparent background is removed and the visible logo becomes the printable outline. For grayscale artwork, switch to Height Map mode so brightness becomes surface height.
03 Choose the right mode
Shape Mode vs Height Map Mode
PNG files can represent crisp silhouettes or tonal artwork. Pick the conversion mode based on what the pixels mean in your source image.
| Question | Shape Mode | Height Map Mode |
|---|---|---|
| Best for | Transparent PNG logos, icons, text marks and line art | Grayscale artwork, shaded reliefs and digital art |
| What it reads | Transparency first, or black-and-white contrast | Image brightness becomes surface height |
| STL style | Clean extruded outline with optional flat base | Raised or recessed relief on a rectangular base |
| What to adjust | Edge selection, size, base thickness, raised height and detail | Relief depth, background cutoff, brightness, contrast and smoothing |
| Print tip | Use 2–4 mm extrusion for badges and signs | Use shallow depth for smoother lithophane-style surfaces |
Use Shape mode when you want the PNG artwork itself to become a solid object. Use Height Map mode when the light and dark areas should create a raised relief.
04 Four steps
How to Convert PNG to STL
- 01
Upload PNG
Drop in a logo, icon, line art image, screenshot or transparent PNG.
- 02
Choose mode
Use Shape for solid artwork or Height Map for grayscale reliefs.
- 03
Adjust settings
Set width, base thickness, extrusion height, threshold and detail.
- 04
Download STL
Preview the model, then export a printable STL file.
05 Transparent artwork
Convert a PNG Logo to STL
Shape mode turns a PNG logo into a raised logo, embossed sign or printable badge. If the PNG has transparency, the visible pixels become the solid model and the transparent background is removed.
Transparent logo
Keep Use transparency as shape enabled. The transparent edge becomes the outline, so the STL follows the visible mark instead of exporting a rectangle.
Black logo on white
Use Shape mode, enable invert if the background is being selected, then move Threshold until the logo reads as one continuous solid.
Thin strokes
Increase the final width or use a bolder PNG before export. Very fine lines can look correct on screen but break when sliced or printed.
PNG Logo
Visible Shape
STL Badge
06 From PNG to 3D model
How Does PNG to STL Conversion Work?
A PNG is a two-dimensional raster image, while an STL stores a triangle mesh. Converting PNG to STL is not a file renaming step; the pixels must be interpreted as shape or height data first.
PNG Image / Transparency→Shape or Height→Solid 3D Model→STL File
Shape mode follows the visible PNG outline, keeps interior holes, and raises the result into a solid STL. Height Map mode maps bright and dark PNG values to surface height, which is better for shaded artwork and relief panels.
07 Print checks
Create 3D-Printable STL Files from PNG
PNG details can be visually clear but physically too thin to print. Before slicing, verify the model dimensions, increase base thickness for larger signs, smooth jagged edges, and use high-resolution PNG sources when possible.
Logo extrusion
For badges, signs and raised logos, start with 2–4 mm extrusion. Use 1.5–3 mm base thickness when the logo has separated islands that need to stay aligned on the print bed.
Output quality
Higher detail preserves more PNG edge information but produces a larger STL file. Use High for curved logos and fine icons, Medium for simple marks, and Low only for quick drafts.
Thin parts
Small strokes may disappear or break on a printer. Avoid details near or below your nozzle width, increase the model width, or choose a bolder source PNG when fine lines look fragile.
Tinkercad and Blender
Import the downloaded STL into Tinkercad for simple edits or Blender for mesh cleanup, bevels and boolean work. Keep the original STL scale unless your target app asks for a unit conversion.
Bambu Studio workflow
Open the STL in Bambu Studio, place the flat side on the build plate, and check that narrow logo strokes preview as continuous toolpaths before starting the print.
STL size
STL files do not store real units. This tool sizes the model in millimetres, so a 100 mm wide model should import as 100 mm in most slicers.
08 PNG use cases
PNG to STL Examples
Use Shape mode for clean silhouettes and Height Map mode for shaded PNG artwork.
Icon → STL
Turn simple app icons, symbols and marks into small printable objects.
Line Art → STL
Convert high-contrast drawings into wall art, stencils or plaques.
Screenshot → STL
Use threshold controls to extract bold interface shapes from screenshots.
Digital Art → STL
Map grayscale artwork into textured relief surfaces for display pieces.
09 Related workflows
More STL Tools
After PNG conversion, inspect, repair, edit or convert nearby file formats.
10 Common questions
PNG to STL FAQ
How do I convert PNG to STL?+
Upload a PNG image, choose Shape or Height Map mode, adjust width, base thickness, extrusion height and detail, preview the 3D model, then download the STL file.
Can I convert PNG to STL for free?+
Yes. This PNG to STL converter is free to use, requires no sign-up, and processes the PNG locally in your browser.
Can a transparent PNG be converted to STL?+
Yes. Transparent PNG files work especially well. The converter can use transparency so empty areas are ignored and the visible artwork becomes the printable shape.
Can I convert a PNG logo to STL?+
Yes. Shape mode is made for PNG logos, icons and line art. Use transparency or the threshold control, set an extrusion height, and export a raised logo, badge or sign as STL.
Can I use the STL in Tinkercad or Blender?+
Yes. Convert your PNG to STL, download the .stl file, then import it into Tinkercad, Blender, Bambu Studio, Cura or another tool for editing and slicing.
Is the generated STL ready for 3D printing?+
The exported STL is watertight and sized in millimetres. Thin PNG details may still be too small to print, so check dimensions, add a base when needed, and inspect the model before slicing.