STL Mesh Inspector
Drag and drop STL files to check triangle count, bounding box, volume, surface area, and watertightness. 100% client-side — your files never leave your browser.
Drop your STL file here
or click to browse • .stl files only • 100% client-side processing
Additive Manufacturing & Mesh Utilities
Verify watertight STL geometry, calculate print costs, and optimize chordal deviations
STL / 3MF Mesh Polygon Decimator
Mesh ReducerCalculate optimal triangle decimation ratios and binary STL byte size for 3D printing.
3D Printing Chordal Deviation Optimizer
Mesh QualityBalance polygonal faceting vs file size when exporting STEP/CAD solids into watertight STL/3MF.
3D Print Cost & Layer Time Estimator
Cost EstimatorCalculate material filament weight, machine amortized hourly rates, and total part cost.
Blender Keyboard Shortcuts Reference
3D ModelingComprehensive hotkeys for 3D modeling, mesh editing, sculpting brushes, and Cycles rendering.
Online STEP to STL Slicer Helper
ConversionConvert STEP/IGES assemblies to optimized 3MF/STL geometry for PrusaSlicer & Bambu Studio.
DWG Bloat & File Size Reducer
Size ReducerDiagnose 50MB+ bloated AutoCAD DWG files and purge orphaned DGN linetypes & RegApps.