pictostl is an online image-to-3D converter for 3D-printing and modeling workflows. Users can upload a JPG, PNG, or WebP image, optionally provide multiple views, choose Basic, Pro, or Ultra quality, preview the generated mesh interactively, set its longest side in millimeters, and export it. The homepage states that STL exports contain geometry only, while GLB can retain available color and materials; it also lists OBJ and PLY for editing and mesh workflows. Hidden or unseen surfaces are inferred, so generated results should be reviewed before printing.