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IMAGE TO STL · FREE ONLINE CONVERTER
Turn images into 3D STL files.
Create clean logo outlines or detailed heightmap reliefs from PNG and JPG artwork. Preserve transparency, review the dimensions and preview the mesh before you generate STL file geometry for download.
01 Choose your file
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3D preview
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Download✓ Files stay on your device✓ Gray 3D preview✓ Free downloads✓ No account needed
FROM FILE TO FINISHED MESH
How to convert your file
Review your settings
Choose the right mode, scale and detail. Processing runs in your browser.
Inspect and download
Rotate the preview, save the output and verify it in your next application.
MAKE THE SHAPE YOU MEAN
Your outline.
No unwanted square.
Outline extrusion follows the foreground of a transparent PNG. Switch to heightmap relief when brightness should create peaks and valleys.
Find your next converter
All tools →PNG to STL
Create a clean outline from a transparent PNG, or turn grayscale artwork into a relief. The transparent canvas does not become a rectangular backing.
Open converter →JPG to STL
Convert a JPEG into a grayscale relief or extrude high-contrast artwork after removing a simple background.
Open converter →SVG to STL
Turn self-contained SVG paths and shapes into an STL outline or relief. Convert text to paths before uploading.
Open converter →OBJ to STL
Convert OBJ polygon geometry into a binary STL for a geometry-only mesh workflow.
Open converter →STL to OBJ
Convert a binary or ASCII STL into an OBJ triangle mesh while retaining its numeric coordinate values.
Open converter →3MF to STL
Extract supported core 3MF build geometry with component placement and millimeter-sized output.
Open converter →STEP to STL
Tessellate STEP or STP CAD geometry into an STL using a browser-loaded OpenCascade engine.
Open converter →Free 3D models to get you started
Explore original STL examples for viewer checks and printing practice. Visit the free model library →
News & practical guides
All articles →
GUIDE · SEPTEMBER 26, 2026
How to turn a transparent PNG into a clean STL outline
Prepare logos and letters, preserve transparency and remove unwanted rectangles.
Read the guide →
GUIDE · SEPTEMBER 26, 2026
Image to STL relief: a practical guide to better settings
Understand depth, base thickness, contrast, smoothing and mesh detail.
Read the guide →
GUIDE · SEPTEMBER 26, 2026
STL, OBJ, 3MF and STEP: choose the right conversion
Understand geometry, units, materials, tessellation and conversion losses.
Read the guide →Image to STL questions, answered
Does this create a full 3D object from a photo?
No. It creates silhouette extrusion or heightmap relief. Hidden sides are not reconstructed.
Why is the model gray?
Gray is the preview material. Standard STL stores geometry, not the original image colors.
Are my files uploaded?
No. Conversion happens in this browser tab. Downloads remain on your device.
Create an STL file: outline or relief
Start with a high-contrast logo for an outline, or a grayscale image for variable height. The result is an extrusion or surface relief based on the supplied artwork; a single photograph does not describe the hidden sides of a complete 3D object.
Learn how the image-to-mesh workflow works · Choose an image to STL tool