STL Converter/convert/jpg-to-stl
Browser converter·no upload

JPG to STL, in your browser.

Drop a .jpg photo — portrait, landscape, anything — and turn it into a printable relief.

viewer● live
drop a file to preview
Drop your .jpg / .jpeg file
or click to browse · local only
Extrusion height8 mm

Lighter pixels are pushed higher (relief). Drag to adjust.

Output format

100% local · file never leaves your browser

// about

JPGSTL: what changes.

JPG → STL extrudes each pixel by its luminance: bright pixels become peaks, dark pixels stay flat. The output is a watertight 3D solid ready for any slicer.

For lithophanes, increase contrast in your photo editor first — soft gradients flatten the relief. For carved-look reliefs, boost shadows and use a thicker base.

Fully private

The file is parsed in WebAssembly + WebGL on your device. Nothing leaves.

Instant

No queue, no upload. Most files convert in well under a second.

Inspect before download

Orbit, pan and zoom the result in real time before you commit.

// faq

Frequently asked

Best photo for a lithophane?

High contrast, clear subject, no busy background. Black-and-white portraits work brilliantly.

Does compression artifact show?

Slightly. JPG noise becomes surface texture. Use PNG when you can.

Can I print it directly?

Yes — the solid is watertight. Print with vase mode or thin walls for lithophane-style transparency.