3dp.rocks Image to Lithophane
Classic free lithophane converter with flat, curved, dome and heart shapes
Opens 3dp.rocks

About 3dp.rocks Image to Lithophane
3dp.rocks Image to Lithophane is one of the oldest and best known lithophane converters in the hobby. It runs entirely in the browser: drop in one or more images, choose a form, adjust a few sliders and download an STL. There is no account, no upload queue and no paywall.
The tool offers eight forms: flat, inner curve, outer curve, solid cylinder, rectangular pillow, dome on top, dome on side and heart. Settings cover maximum size, thickness, border and minimum thickness, and a 3D view lets you inspect the model before saving it. The source code is public on GitHub under the MIT licence.
The interface looks dated, shows ads and has not changed much in recent years, but it still works and it is quick. It is a good pick when you just want a simple panel or curved lithophane without signing up for anything, or when you like the idea of a tool whose code you could read or host yourself.
What you can make
- Flat lithophanes
- Curved lithophanes
- Cylinder lithophanes
- Dome and heart lithophanes
How to use it
- Open 3dp.rocks/lithophane and drop in your image
- Choose a form such as flat, curved or heart
- Set size and thickness in the settings tab
- Check the 3D view and download the STL
Good
- No sign-up and very fast
- Several images can be loaded in one session
- Open source code (MIT) on GitHub
Not so good
- Dated interface with ads
- Fewer shapes than newer tools
- No lamp fittings, stands or frames
What you'll need to print it
Materials and parts that give the best results with 3dp.rocks Image to Lithophane.
White PLA for lithophanes
A lithophane is only as good as the light passing through it. A neutral, evenly pigmented white gives smooth grey gradients, while an off-white or patchy batch shows up as blotches and colour casts once it is backlit.
- Bambu Lab PLA Basic Jade WhiteThe white Bambu uses in its own lithophane workflow; RFID presets make first prints predictable on Bambu printers.
- Polymaker PolyLite PLA Cold WhiteA cool-toned white (listed next to the warmer standard White) that keeps backlit photos crisp instead of yellowish.
- eSUN PLA+ WhiteAffordable and easy to find, good for large or batch lithophane panels.
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