STL Splitter Image to STL

What is STL Splitter Image to STL?

Image to STL is a free converter on STL Splitter, the site best known for its bed splitter. You drop in a PNG, JPG, WebP, GIF or BMP and choose Relief, a raised picture on a solid base like a coin or a plaque, or Lithophane, a thin panel that shows the photo when light shines through it.

You set the width in millimeters (the depth follows the aspect ratio), the base and relief height or the lithophane's thinnest and thickest points (0.8 and 3.2 mm by default), an optional frame, the resolution from 50 to 400 samples on the long side and up to three smoothing passes. For dark artwork on a white background you can flip which areas are raised. The panel shows the exact size and triangle count before you download, and the result is one closed, watertight body.

Everything runs in your browser and the image is never uploaded. There is no account and no cost; the site also has PNG to STL for logos, JPG to STL for photos and an SVG to STL converter for vector artwork.

What you can make

• Picture reliefs and plaques
• Photo lithophanes
• Logo reliefs

How to use STL Splitter Image to STL

1. Open Image to STL and drop in a picture
2. Choose Relief or Lithophane
3. Set the width, heights, resolution and smoothing
4. Download the STL or 3MF and print it flat, or upright for a lithophane