The professional in-browser workbench for STL, OBJ, GLB, and PLY files — auto-repair non-manifold geometry, decimate, hollow, measure wall thickness, and export print-ready files without installing a thing.
From dropping a broken STL to exporting a print-ready file — the whole workflow, narrated.
From makers prepping prints to engineers validating CAD exports, MeshAnalyzer gives you the analysis, repair, and visualization tools you'd expect from $1000/seat software — straight from your browser.
Position-aware open-edge detection, T-junctions, winding consistency, triangle quality, thin-feature flags. Each issue is explained in plain English with a fix suggestion.
Toggle curvature, surface normals, and wall-thickness heatmaps live on the model. Find what your eye misses before it ruins a print.
Surface-snap distance measurements, persistent annotations, multi-axis section cuts. Save your session locally or to the cloud.
Welds float-precision duplicate vertices, removes degenerate and duplicate triangles, fixes normal consistency. Get a printable mesh in under a second — with a before/after report.
Reduce poly count by 50%+ with vertex-clustering decimation that preserves silhouette, or generate a closed hollow shell to save material.
Save unlimited projects to your encrypted MeshAnalyzer cloud workspace. Generate public share links — recipients view the 3D model in their browser, no account needed.
Binary STL (~80% smaller than ASCII) and proper binary GLB output. Re-exported files are slicer-ready and visibly cleaner than the originals.
One-click downloadable mesh-quality reports — perfect for client deliverables, QA documentation, and printing-service handoffs.
Brush up on mesh topology fundamentals — manifoldness, normals, watertightness — with the in-app guided quiz.
Free plan covers inspection and analysis fully. Pro unlocks the active editing tools — repair, decimate, hollow — plus cloud storage and exports.
| Feature | Free | Pro · $9/mo |
|---|---|---|
| Viewer & Analysis | ||
| Load STL / OBJ / GLB / PLY / DAE | ✓ | ✓ |
| Orbit / pan / zoom · render presets | ✓ | ✓ |
| Quality score with breakdown | ✓ | ✓ |
| Detected-issues panel (open edges, degenerates, thin features…) | ✓ | ✓ |
| Heatmaps (curvature, normals, wall thickness) | ✓ | ✓ |
| Section / slice planes | ✓ | ✓ |
| Measure & annotate | ✓ | ✓ |
| Print Readiness — separate scores for FDM, SLA, SLS, CNC | ✓ | ✓ |
| Cost & Time Estimate — real $ and hours per material | ✓ | ✓ |
| Undo / Redo history (Ctrl+Z) | ✓ | ✓ |
Keyboard shortcuts (press ?) | ✓ | ✓ |
| Mesh Editing | ||
| 1-Click Auto-Repair (weld + dedupe + normals + auto-rollback) | — | ✓ |
| Mesh Decimation (50% reduction, shape-preserving) | — | ✓ |
| Hollow & Drain (closed inner shell) | — | ✓ |
| Auto-Orientation — find optimal print orientation in 1 click | — | ✓ |
| Export & Sharing | ||
| Local session save / load | ✓ | ✓ |
| Cloud workspace (encrypted, unlimited) | — | ✓ |
| Public share links (no account needed for viewer) | — | ✓ |
| Binary STL export | — | ✓ |
| Binary GLB export | — | ✓ |
| PDF mesh-quality report | — | ✓ |
| Access | ||
| Time limit | 2 days free, then sign in | Unlimited |
| Priority support | — | ✓ |
From hobbyist FDM prints to dental scans with hundreds of thousands of triangles — MeshAnalyzer was engineered to be fast, accurate, and to tell you the truth about your mesh.
Start with a 2-day free trial — no sign-up needed. Create a free account to keep analyzing, or upgrade to Pro for the editing tools.
?)Anything else? Email support@meshanalyzer.app.
No. You get a full 2-day free trial just by opening the app — no email or password required. After two days you'll be prompted to create a free account to keep going.
During inspection nothing leaves your machine — the entire viewer runs locally in your browser. When you click Save to Cloud (Pro), files are uploaded to MeshAnalyzer's own encrypted server storage and listed under View My Cloud Files in the app.
It runs a four-step pipeline: (1) welds coincident vertices within a tolerance derived from the bounding box, closing the float-precision "open edges" most STLs ship with; (2) drops degenerate / zero-area triangles; (3) removes duplicate triangles; (4) recomputes vertex normals. After the repair, a Before vs After report shows the exact numbers — verts welded, triangles removed, score delta.
Yes. Open the app, click your profile avatar (top-right) → Manage subscription. This opens PayPal where you cancel the MeshAnalyzer subscription. You keep Pro access until the end of your current billing period, then drop to the free tier automatically.
Refunds are available within 24 hours of upgrading. Email support@meshanalyzer.app from your account email within 24 hours and we'll process the refund. After 24 hours, refunds are no longer possible — but you can cancel anytime to stop future billing.
Yes. Pro share links work for anyone — they open a polished read-only 3D viewer in the recipient's browser with rotate / zoom / wireframe controls and a download button. They don't need a MeshAnalyzer account.
Import: STL (ASCII & binary), OBJ, GLB, GLTF, PLY, DAE. Export: binary STL, binary GLB. PDF analysis reports for QA / handoff.
The analysis and Auto-Repair both run in O(verts + tris) and handle 100k-tri meshes in under a second on a modern laptop. We've tested up to 1M triangles — it stays responsive.
Drag-and-drop your STL into the viewer. Two days free — no card, no signup.