Free Online STL Repair Tool
Fix non-manifold meshes and prepare your 3D files for printing in seconds. Try for free.
Drag & Drop your STL file
Files are never saved or shared
STL (100MB)Uploading file...
This usually takes 15-30 seconds
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Non-Manifold Repair
Automatically fixes non-manifold edges and vertices that cause 3D printing failures.
Print-Ready Output
Get STL and OBJ files optimized for 3D printing with detailed quality stats.
Try for Free
Sign up and get free credits to try the STL repair tool. No commitment required.
Need to Integrate STL Repair?
Use our API to fix STL files programmatically in your own applications and workflows.