Fast STL Viewer

Fast STL Viewer (Package Name: com.performance.meshview) is developed by Fast STL Viewer and the latest version of Fast STL Viewer 2.93 was updated on October 25, 2026. Fast STL Viewer is in the category of Tools with the feature Productivity. You can check all apps from the developer of Fast STL Viewer and find 200 alternative apps to Fast STL Viewer on Android. Currently this app is for free. This app can be downloaded on Android 7.0+ on APKFab or Google Play. All APK/XAPK files on APKFab.com are original and 100% safe with fast download.

Professional STL inspection and measurement on Android. Wall thickness analysis, printability checks, point-to-point distance, volume, surface area, cross-sections — tools that used to require a desktop workstation, now in your pocket.
Trusted by engineers, dental technicians, medical device teams, jewellery designers, and quality control inspectors worldwide. Over 1 million downloads.
PRO INSPECTION TOOLS
▸ Wall Thickness Heatmap
Spot thin walls and weak points before they become print failures. Color-coded heatmap (red → yellow → green) maps thickness across your entire model. First mobile STL viewer with wall thickness analysis.
▸ Printability Dashboard
Four automated mesh checks: open edges, flipped normals, non-manifold geometry, degenerate triangles. Interactive 3D overlay highlights each issue directly on your model. Catch defects before they waste material and machine time.
▸ Normal Visualization
Per-face normal vectors with adjustable length, color, and thickness. Verify surface orientation at a glance — essential for diagnosing reversed faces and print artifacts.
▸ Cross-Section Slicing
Adjustable X, Y, Z cutting planes to inspect internal geometry. See what's inside without splitting the file.
MEASUREMENT TOOLS
- Point-to-point distance — tap two points, get the dimension
- Volume and surface area with unit selector (mm, cm, in)
- Bounding box dimensions (X, Y, Z)
- Properties panel: triangle count, dimensions, full geometry stats
VISUALIZATION
- 5 rendering modes: shaded, wireframe, combined, point cloud, normals
- 6 standard views: top, bottom, left, right, front, back
- Orthographic projection for accurate dimensional inspection
- Custom mesh, scene, wireframe, and point cloud colors
- Adjustable lighting — matte to glossy material appearance
- Automatic detection of unconnected components within a single file — instantly color-coded for assembly review
- Open boundary detection — identify non-watertight geometry before printing
WORKFLOW
- Load multiple STL files for side-by-side comparison
- Open from Gmail, Google Drive, WhatsApp, or any file manager
- Share STL files directly from any app
- Select and open multiple files at once via the in-app file picker
- Save and export
BUILT FOR PERFORMANCE
OpenGL ES 3.2 and native C++ with hardware-accelerated mesh analysis. Handles files with millions of triangles. Binary and ASCII STL.
USED BY PROFESSIONALS IN
◆ Engineering & QC — Verify wall thickness on brackets, housings, and structural components. Inspect cross-sections. Measure dimensions before manufacturing. On-device inspection for incoming parts.
◆ 3D Printing — Run printability checks before every print. Open edges, flipped normals, thin walls — catch them before they cause failures.
◆ Dental — Inspect crowns, bridges, and aligners. Measure dimensions, verify wall thickness on thin anatomical geometry.
◆ Medical Devices — Review implant and prosthetic STL files. Cross-section through anatomy, verify specs.
◆ Jewellery — Wall thickness on filigree and prong settings. Mesh integrity before casting.
Try any Pro feature free — watch a short video to unlock for 1 hour. Upgrade to Pro to keep them all.

Fast STL Viewer 2.93 Update

Open and convert STEP files to STL with our free add-on (experimental).