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.

STL to STEP Converter StarForge 3D Modeling Software

STL Mesh to STEP File for CAD Users

Machine shops, manufacturers and CAD programs such as Fusion 360, SolidWorks, Onshape and FreeCAD expect the ISO 10303 STEP standard. The STL to STEP Converter writes a Stereolithography mesh into a STEP file in the browser, free and with nothing uploaded. The result is a faceted mesh made of the same flat triangles, not an exact parametric CAD solid, so curves stay faceted and features cannot be edited as sketches. It suits sharing a 3D Print STL File with CAD users for reference and 3D printing jobs, inside StarForge 3D Modeling Software.

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