JPG to STL Converter

A JPG is a flat grid of colored pixels, so there is no depth in it to extract. This converter creates a relief from brightness: each pixel's lightness decides the height at that point, and the result stands on a solid base plate. By default dark areas are raised and light areas stay low, which works well for portraits, drawings and logos. It is a relief, not a full 3D model of the scene; it looks right when viewed from the front.

Pick an image with strong contrast and a simple background. Portraits and pets that fill the frame work better than wide scenes. JPG compression adds noise around edges, which can show up as small bumps in the print, so use the smoothing option or a higher quality original. Very dark or washed-out photos give a flat relief; brighten or add contrast in a photo editor first.

If you want one sharp level instead of smooth shading, turn on black and white with automatic level, which suits logos, signatures and line art.

Start with 100 mm wide, a 2 mm base and 3 mm relief. A detail value around 200 keeps file size reasonable for photos. For a keychain use the Keychain product (keyring hole included) at 40 to 50 mm. For a coaster, a round or rounded shape around 90 to 100 mm wide with a raised rim keeps drinks in place. Stamp mode mirrors the image automatically. Print with a 0.4 mm nozzle and 0.12 to 0.2 mm layers.

If you want a photo that glows when lit from behind, use the lithophane maker instead, which makes thin and thick areas for light to pass through. If you want a full 3D figure of a pet, person or object from one photo, try the AI 3D tab, which guesses the shape and is described on its own page.