Maker Guide

How to Make a 3D-Printed Lithophane From a Photo (A Glowing Gift You Finish Yourself)

A lithophane is one of the most quietly magical things you can 3D print. It looks like a plain frosted panel in daylight, but light it from behind and a photo appears out of the shadows and highlights. The Lithophane Generator turns any photo into a print-ready one in your browser, no CAD and no account. Print a loved one's picture, put a small light behind it, and you've made a keepsake people actually keep. Here's how it works, and why it's such a satisfying project.

Why a lithophane makes such a good gift

Most 3D prints are the finished thing the moment they come off the printer. A lithophane is different, because you add the light yourself, and that last step is what makes it feel complete. Print someone's photo, set a real tea light or a small battery candle behind it, or wire in a little LED, and their face glows out in soft, warm detail. People stand it on a nightstand as a sleep light that glows all night, or give it as a gift that carries a real memory. Because you finish it with your own light source, it isn't a half-done print sitting on a shelf. It's a real, complete object you made.

Open the Lithophane Generator

Start by opening the tool. It runs entirely in your browser, with nothing to install and no account to create, and it now works on your phone as well as a laptop. It even loads with a demo lithophane already glowing, so you can see exactly what it makes before you upload anything of your own.

Upload your photo

Drop in any JPG or PNG. Portraits and pictures with clear light and shadow work best, since a lithophane is really a map of brightness turned into thickness: dark parts of the photo print thicker and block more light, bright parts print thinner and glow through. Your photo is processed right in the browser and never leaves your device.

Pick a preset

Choose a starting point instead of a blank canvas. Photo Frame is a flat panel on a stand, the classic tabletop keepsake. Night Light is a gently curved panel sized for a bedside glow. Curved Lamp wraps the image a little wider, and Cylinder Shade curls it into a full tube that fits over a light. Each preset sets sensible thickness, size, and curve values for you, and you can adjust any of them from there.

Dial in thickness and detail

The two settings that matter most are the minimum and maximum thickness. The minimum is how thin the brightest areas get, which controls how much light shines through, and the maximum is how thick the darkest areas get. A wider gap between them gives you more contrast. Bump the resolution up for a detailed portrait, and add a border or a stand if your preset didn't already include one.

Preview, then export the STL

The live 3D preview rotates and zooms so you can check the relief before you commit. When it looks right, export a binary STL ready to drop straight into Bambu Studio, Cura, or PrusaSlicer. Print it in white or a light natural filament so the light comes through cleanly, and print it standing up or laid flat depending on your shape.

Add the light and you're done

This is the part that turns a print into a gift. Stand the finished lithophane in front of a tea light, a small LED puck, or a battery candle, and watch the photo appear. For a Cylinder Shade, slip it over a small bulb or an LED tea light so it glows from the inside. That final step, adding your own light, is what makes it feel like something you truly finished, not just printed.