Skip To Content

We just fixed downloads: every STL now comes straight from fast, reliable storage, saved under its own name, we're making 10,000 STL files and dozens of new tools, so things might break. We'll fix them ASAP.

STEP to STL Converter StarForge 3D Modeling Software

Convert CAD Parts for Slicers Free

Fusion 360, SolidWorks, Onshape and FreeCAD all export the ISO 10303 STEP format, which stores exact curved surfaces and solids, yet slicers cannot read it. The STEP to STL Converter tessellates a STEP part or assembly into triangles and saves a 3D Print STL File right in the browser, free and with nothing uploaded. Curves become flat facets and the exact surfaces cannot be recovered from the STL. Engineers skip a trip back to CAD for 3D printing, using StarForge 3D Modeling Software instead.

81+ StarForge 3D Modeling Software

81 results

Choose Your Membership

StarForge membership tiers and what each one includes each month
Included each month

Starter

Merchant

Merchant+

AI

AI Max

Credits451504501,5004,000
STL Downloadsup to45up to150up to450up to1,500up to4,000
3D ToolsUnlimitedUnlimitedUnlimitedUnlimitedUnlimited
AI 3D Modelsup to4up to15up to45up to150up to400
Sell 3D PrintsIncludedIncludedIncludedIncludedIncluded
Sign up