MeshRepair
Fix 3D Print Files Fast
Only for Mac
Free · In‑App Purchases
Mac
Fix broken 3D print files in seconds. MeshRepair is the native Mac app for diagnosing and repairing STL and OBJ meshes — no cloud, no subscription, no hassle.
DIAGNOSE INSTANTLY
Drop any STL or OBJ file onto MeshRepair and get an instant health report. See exactly what's wrong: non-manifold edges, holes, flipped normals, degenerate triangles, and duplicates — all color-coded in the 3D viewport.
ONE-CLICK REPAIR
Auto-Repair fixes most issues instantly. For stubborn meshes, Voxel Remesh guarantees a manifold, watertight output every time — mathematically proven. No more slicer errors.
POWERFUL TOOLS
• Auto-Repair — one-click fix for common issues
• Voxel Remesh — guaranteed manifold output via Marching Cubes
• Fix Normals — orient all faces outward
• Fill Holes — close open boundaries
• Merge Vertices — weld close points
• Plane Cut — slice meshes in half
• Hollow Shell — save material on large prints
• Smooth / Relax — reduce surface noise
• Simplify — reduce triangle count (75%, 50%, 25%)
• Rotate — 90° rotation on X, Y, Z axes
• Align to Print Bed — orient for optimal printing
• Scale to Build Plate — fit your printer's volume
• Remove Noise Shells — delete floating debris
• Center on Origin — zero the model
3D VIEWPORT
Interactive SceneKit viewer with orbit, pan, zoom. Solid, wireframe, and solid+wire view modes. Non-manifold edges highlighted in red, holes in blue.
MESH STATISTICS
Triangle count, vertex count, dimensions in mm, volume in cm³, surface area in cm². Everything you need before sending to your slicer.
IMPORT / EXPORT
• Import: STL (binary + ASCII auto-detect), OBJ
• Export: STL binary (manifold guaranteed with Pro)
SIMPLE PRICING
3 free exports to try everything. $9.99 one-time Pro unlock for unlimited exports. No subscription. No account required.
Built for Mac with 100% Apple-native technology. No external dependencies. No cloud processing. Your files never leave your Mac.
From the makers of HDR Forge, Photo Cull Pro, and 3D Scan Pro.
- This app hasn’t received enough ratings or reviews to display an overview.
Voxel Remesh now handles models with holes more reliably and avoids adding geometry beyond the model. Restore Purchases now shows clear connection, sign-in and cancellation messages.
The developer, Scott Manley, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Scott Manley
- Size
- 3.4 MB
- Category
- Graphics & Design
- Compatibility
Requires macOS 26.2 or later.
- Mac
Requires macOS 26.2 or later.
- Mac
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Pro Unlock $9.99
- Copyright
- © 2026 Scott Manley