Convert an image into an STL heightmap.
Sample image brightness into a small 3D relief mesh and download an ASCII STL for previews, CNC tests, or 3D-print experiments.
Result will appear here
How to use Image to STL
- Drop an image (or several) into the upload area, or click to pick from your device.
- Adjust any settings — output format, target size, pixel grid, whatever the tool exposes.
- Click Download to save the result. Everything runs locally; nothing is uploaded.
Why imgrove's Image to STL
- Free, no signup. Open the tool, use it, leave. No account, no email, no trial.
- Browser-based. All processing happens on your device. Your images never touch a server.
- Mobile-friendly. Works on iOS, Android, Chromebook — anywhere a modern browser runs.
- No watermarks. What you produce is yours.
Best for
- Making. making simple relief meshes from logos or heightmap art
- Testing. testing image-to-3D ideas before using CAD software
- Creating. creating browser-only STL experiments from private images
What you get
- An. an ASCII STL heightmap mesh generated from image luminance
- Adjustable. adjustable grid size and relief height
Before you download
- This. this is a relief heightmap, not full 3D object reconstruction
- Higher. higher mesh grids create larger STL files and slower downloads
- Private by design. This tool runs locally in your browser; image pixels are processed on your device.
Frequently asked questions
Is Image to STL really free?
Yes. Every imgrove tool is free, with no signup, no trial, and no per-file limit beyond sensible browser memory.
Are my images uploaded to a server?
No. Image to STL runs entirely client-side in your browser. The image never leaves your device.
Which file formats does Image to STL support?
JPG, PNG, and WebP are supported across all first-launch imgrove tools. More formats are added only after browser smoke coverage passes.
Can I use it on a phone?
Yes. imgrove is designed mobile-first.