Observed arrival · 2026-09-03
StepSTLTools, a Private CAD Conversion Workbench
A browser-based suite that converts STEP and STP CAD files into STL or OBJ, with batch processing, mesh checks, and 3D inspection.
Field notes
The workbench exposes the usual conversion sequence—file selection, tolerance choice, tessellation, and export—alongside diagnostics for manifoldness, boundary edges, and degenerate facets. It supports Binary STL, ASCII STL, and Wavefront OBJ, with visible presets ranging from 0.50 mm draft quality to 0.01 mm fine quality. Batch handling can process multiple files and download them as a ZIP; the page states a 250 MB per-file limit and warns about mobile memory for larger models.
Observed signals
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Editorial observations of this landing page, not a rating.
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