How do I make a lithophane from a photo?

Go to https://www.fileflip.org/tools/image-to-lithophane, upload your image, adjust settings, and download the STL.

What is a lithophane?

A lithophane is a 3D print where thickness encodes image brightness; when backlit, the image appears.

No. Processing is in your browser.

Turn any photo into a 3D printable lithophane STL file for free. Customize thickness and size, then download and print at home on any FDM 3D printer.

Drop your image here or click to upload

How do I make a lithophane from a photo?: Upload a JPG, PNG or WEBP image. Set the width (mm), min and max thickness, and resolution. Click "Generate Lithophane". When done, you can preview the 3D model and download the STL file. Print at 0.1mm layer height and backlight to see the image. No data is sent to any server.
Are my images sent to a server?: No. The image is processed entirely in your browser. Your photo never leaves your device.
What is the best resolution?: Higher resolution gives more detail but larger STL files. Start with 100; increase for finer detail or decrease for faster generation and smaller files.