Built for CAD review: STEP files in the hundreds of MB and faceted models above 1 million triangles, plus measurement, cross sections, and mesh export.
- Open JT files locally
- View tessellated engineering models in a native 3D viewport
- Exploded View to separate assembly components
- Cross Section View to inspect internal model areas, with Flip Kept Side to view from the other side
- Export tessellated models as binary STL, binary glTF GLB, and USDZ, USDC, or USDA
- Capture screenshots with pre-save annotations, editing, and watermarks
- Record 3D viewport review videos with optional synced microphone narration and watermarks
STL to STEP Assistant is a focused local 3D model tool for converting mesh-based models into STEP files for CAD workflows.
Open STL, STLB, GLB, 3MF, USDZ, OBJ, 3DM, FBX, DAE, PLY, 3DS, AMF, DRC, KMZ, MPD, WRL, and other model files, preview them in a clean 3D scene, choose a conversion quality mode, then export and save the current main model as a STEP file. You can also load and view STEP and STP files to inspect conversion results.
