MEGATools

Use STL Repair to mend a broken mesh: this stl fixer closes holes, fixes normals and repairs stl files into a watertight model.

Use 3mf to stl converter to turn any .3mf file into a clean stl. Extract the mesh and download stl, all in your browser.

Open .stl files in your browser. Use this stl file viewer to view stl online and size-check any 3d model. No upload, fully offline.