STL Forge

Image to STL Forge

Upload a black and white or grayscale image, tune the physical size and relief depth, preview the solid model in 3D, and export a watertight STL.

Supported

PNG, JPG, SVG

Output

Binary STL in millimeter scale

Geometry

Solid baseplate + closed side walls

Upload

Source image

Select an image fileDrop in a high-contrast PNG, JPG, or SVG. Darker or lighter pixels can drive the relief height.Browse files

Preview

Awaiting

Upload an image to generate a relief mesh preview.

Controls

Dimensions stay locked to the source image aspect ratio while you tune scale, relief depth, and mesh detail.

UnitsWidth (mm)Height (mm)Max relief (mm)

Invert mappingSwap which tones generate the highest relief.

Smoothing1px blur

Quality512px longest side