Fix broken, corrupted, or non-manifold STL files in seconds, directly from your browser. Recover your 3D models and make them ready for 3D printing. No installation, no registration, no hidden costs.
🚀 Repair your STL file now — FreeSTL is a simple format, but it's also fragile. Files can become corrupted or non-printable for many reasons:
These problems make the STL unreadable by slicers or cause printing errors. Repairing the file restores the mesh to a printable state.
Follow these steps to repair your STL file in less than a minute.
Go to ArtiFix. No installation, no registration required.
Click "Upload" and select the STL file you want to repair. You can also drag and drop the file directly into the upload box.
Go to the "File Repair Center" page and click "Repair". ArtiFix will analyze the mesh, detect errors, and apply automatic repairs.
Click "Download" to save the repaired STL file to your computer. Your file is now ready for 3D printing.
Detects and fixes edges shared by more than two faces — a common cause of slicer errors.
Recomputes normals so all faces point in the correct direction.
Attempts to close small holes in the mesh so it becomes watertight.
Merges duplicate vertices and removes degenerate triangles.
Yes, ArtiFix is completely free. There are no hidden costs, no subscriptions, and no registration required to repair your STL files.
ArtiFix can repair many common STL errors, including non-manifold geometry, flipped normals, duplicate vertices, degenerate triangles, and small holes. For very severe corruption, the original file may be unrecoverable.
STL files can become corrupted for many reasons: incorrect export from CAD software, interrupted download, conversion from other formats, or generation from a model with non-manifold geometry. Some STL files are also non-printable because they contain geometry errors from the original design.
Yes. Files are processed in memory on the server and are not stored after processing. ArtiFix does not share your data with third parties.
ArtiFix can handle STL files up to several hundred megabytes. For very large files (over 500 MB), the processing time may be longer, and some features may be limited by available memory on the server.
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