Free Image to STL
Turn a photo into a 3D relief STL where brightness sets the height.
Choose the width and height in millimeters; the height map is 80 columns wide, so bold images work best.
- Runs locally
- Add a photo
- Set the size
- Download STL
- Free
- No sign-up
- Runs in your browser
- No watermark
Files are processed in this browser tab. This tool does not ask for an account or upload your file.
Use cases
Where it helps
Private files
Work on a photo, video or document before it is ready to share.
Quick fixes
Convert, check or tidy a file without installing software.
The next step
Download the result for print, publishing, or a PoYo generator.
Three steps
How to use Free Image to STL
Add a photo
Brightness becomes height.
Set the size
Width and thickness are in millimeters.
Download STL
Slice it in your printer software.
Features
What this tool includes
Runs locally
Files are processed in this browser tab. This tool does not ask for an account or upload your file.
Add a photo
Brightness becomes height.
Set the size
Width and thickness are in millimeters.
Download STL
Slice it in your printer software.
PoYo
Need a new image or video?
These free tools work on files you already have. To create an image, video or audio from a description, open a PoYo generator.
Free Image to STL FAQ
Do I need an account?
No. Open the page and use it.
Is my file uploaded?
No. Files are processed in this browser tab. This tool does not ask for an account or upload your file.
Is there a watermark?
No. PoYo adds nothing to the download.
Why does it pause the first time?
Some tools download an encoder or AI model on the first run. That download contains none of your file, and later runs are usually faster.
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Turn a photo into a 3D relief STL where brightness sets the height. Choose the width and height in millimeters; the height map is 80 columns wide, so bold images work best.