About This Launch
Free online STL repair: fill holes, fix non-manifold edges and flipped normals in your browser, with a repair log of what was wrong. Drop in a broken STL that your slicer refuses. The tool closes holes, repairs non-manifold edges and vertices, fixes inverted normals and reports what it changed. Runs entirely in the browser, no upload, no account.
Why I Built This
Slicers often refuse an STL with a vague non-manifold error, and the usual fixes mean installing heavy desktop software or uploading the model to someone else's server. We wanted a one-click repair that runs in the browser and shows what was broken.
Launch Details
CategoryCreator Tools
StageLive
ListedOctober 11, 2026