By Team Hypomnema · Updated October 19, 2026
Convert a photo into a watertight flat lithophane STL with measured thickness. Inspect the height-map preview before exporting.
Create your design
Choose a starting style and adjust its real dimensions, content or artwork. Add a photo when requested.
Keep the preview beside the controls. Use Expand for precise touch drawing or dragging, and Undo/Redo for design changes.
Review every sheet or frame. Export the artwork, or save an editable project to continue later.
Capabilities and limits
Flat closed STL in millimetres, up to a 160×160 height grid. Material, printer and backlighting affect the result; test a small print. Preview mesh is reduced for speed.
Save, print and share
Everything is generated locally. No uploads, AI model calls, external artwork, remote fonts or account connections. SVG text uses device fonts; PNG/PDF preserve the rendered appearance. Save a project to continue later; refreshing clears unsaved work. Images: PNG/JPG/WebP up to 12 MB and 16 MP, processed at at most 1024 pixels on the longest edge. Editable projects are limited to 8 MB. Print at 100% and check the calibration line before cutting. PDF contains raster artwork at the selected resolution; choose SVG for vector cutting or editing.
Try the workflow
Lithophane Preview & STL Maker →
Keep your original documents and review the output. You can also browse all guides or contact Team Hypomnema.