Akritio
akritio.com
Browser tool from Navi3D that turns any 3D model into a print-ready casting mold. Free daily exports, with a Pro plan for unlimited use.
MoldMaker AI
moldmakerai.com
Free AI mold generator: upload a model and it creates a printable mold you can use for casting resin, silicone, soap, concrete and more.
MoldStudio3D
moldstudio3d.com
Browser-based mold designer for 3D printing: generate two-part molds from an STL, plus dedicated tools for candle, soap and ceramic slip-casting molds and a stamp maker.