Mesh Repair Comparison
MeshInspector vs Meshmixer
Autodesk Meshmixer is still one of the most-used free STL repair tools — but it has not seen an update since v3.5 in 2018. Here is how it compares, feature by feature, with MeshInspector: an actively developed mesh repair and inspection tool that runs on Windows, macOS, Linux and in your browser. Verified July 2026.
The short version
Keep the workflow, gain a maintained tool. Meshmixer still does quick one-click repair and sculpting well — and it is free. But it is frozen at a 2018 build: meshes only, no point clouds or CAD input, no deviation checks, no scripting, no support.
- Stay on Meshmixer if you need a free offline fixer for occasional, simple STL jobs and you are comfortable with its quirks.
- Move to MeshInspector for the same quick repairs plus guaranteed-watertight voxel rebuild, curvature-aware hole filling, built-in inspection/QC and Python automation — actively developed, with a free Community plan, in the browser or on Windows, macOS and Linux.
MeshInspector vs Meshmixer at a glance
✓ — first-class support · ± — limited or workaround · — — not available. Compiled from official documentation and hands-on checks, July 2026.
Feature
MeshInspector
Autodesk Meshmixer
Status (2026)
✓ Actively developed — regular releases, powered by the MeshLib engine
— No development since v3.5 (2018); official free download remains, no support
Platform
✓ Windows, macOS, Linux — desktop and in the browser
± Windows and macOS, desktop only
Price
✓ Free Community plan · Makers $300/yr · Pro $790/yr
✓ Free
Input formats
✓ STL, OBJ, PLY, 3MF, OFF, CTM, glTF/GLB · STEP/DXF (CAD) · point clouds (E57, LAS/LAZ, PTS, XYZ, CSV) · DICOM, VDB, RAW, TIFF · G-code
± STL, OBJ, PLY, AMF, 3MF, OFF — meshes only, no CAD or point clouds
One-click automatic repair
✓ Mesh Healer → Auto Repair; batch repair across many meshes (Pro)
✓ Inspector → Auto Repair All
Remove noise shells / unite parts
✓ Automatic small-shell cleanup, Boolean operations
✓ Boolean Union, Separate Shells
Hole filling
✓ Curvature-aware: Smooth, Natural, Basic, Flat + Bridge
✓ Minimal, Flat, Smooth
Self-intersections
✓ Fixed via Mesh Healer / voxel reconstruction
± Flagged by Inspector; workaround via Make Solid
Degenerate triangles & normals
✓ Removes degenerate and zero-area triangles, re-triangulates
± Normals and degenerate faces; otherwise a full Remesh
Guaranteed-watertight rebuild
✓ Voxel-based robust rebuild — watertight even on messy scans
✓ Voxel Make Solid; adaptive Remesh
Scripting / automation
✓ Python API (MeshLib SDK)
± Unofficial legacy API, unmaintained
Manual repair tools
✓ Mesh Healer → Repair Mesh, Local Repair, direct mesh editing
✓ Sculpt brushes, Plane Cut, Bridge, Erase & Fill
Before/after deviation compare
✓ Distance / deviation comparison built in
— Not available
Integrated inspection & QC
✓ Distance, angle, wall thickness, collisions, CT/MRI (DICOM)
— Not available
Meshmixer in 2026: still loved, no longer developed
Meshmixer earned its place: Inspector “Auto Repair All”, sculpt brushes, voxel Make Solid, custom supports, Hollow with drain holes, Plane Cut and Meshmix composition made it the default free fixer for resin and FDM printing, dental labs, miniatures and scan cleanup.
The catch: development stopped at v3.5 around 2018. Autodesk still offers the free download on the Autodesk Marketplace and says there are no current plans to retire it — but there are no updates, no bug fixes and no support.
Where MeshInspector wins for Meshmixer users
- Actively developed — regular releases and real support
- Robust voxel repair with guaranteed-watertight output
- Curvature-aware hole filling that preserves surface shape
- Deviation measurement and QC after every repair
- Point clouds, CT/MRI (DICOM) and CAD input — not just meshes
- Python batch automation via the MeshLib SDK
- Runs in the browser and on Windows, macOS and Linux
Still using Meshmixer daily? You do not have to give up the workflow — start with the free Community plan and repair your next STL right in the browser.
FAQs
Yes. The official free download (v3.5.0 for Windows 64-bit) is available via the Autodesk Marketplace — the old meshmixer.com site redirects there. However, the application has not been updated since 2018 and Autodesk provides no support for it.
Development stopped after version 3.5 (around 2018) and Meshmixer is officially unsupported, although Autodesk states there are no current plans to retire the free download. In practice this means no new features, no bug fixes and no compatibility updates.
MeshInspector is a natural upgrade for Meshmixer users: it covers the same repair workflow — one-click automatic repair, hole filling, Boolean operations, remeshing — and adds guaranteed-watertight voxel rebuild, deviation/QC measurement, point-cloud and CT/MRI (DICOM) support and Python automation. It is actively developed, and the Community plan is free.
Yes. Open your STL and run Mesh Healer → Auto Repair for a one-click fix, or use Mesh Healer → Repair Mesh and Local Repair for fine control. The voxel-based rebuild produces a guaranteed watertight result even on messy scans, and you can compare the repaired mesh against the original with the built-in deviation tools.
Yes — MeshInspector offers a full web version, so you can repair and inspect meshes without installing anything. Desktop applications for Windows, macOS and Linux are also available, and the free Community plan lets you start right away.
