These reviewed tools explicitly list STEP/STP in fileFormats[]. Compare who opens,
edits, or exports the format, how much support is documented, and whether the catalog tags the tool as free or paid.
Need the same slice inside the full catalog grid? Open the STEP/STP filter on the landscape map.
| Tool | Price signal | Direction | Support | Score | Verdict |
|---|---|---|---|---|---|
| A DWG-native CAD platform (Lite/Pro/BIM/Mechanical/Ultimate editions) positioned as a cost-effective AutoCAD alternative with both subscription and perpetual options. | Paid / subscription | Listed | Unknown | 4.2/5 | worth-it |
| Professional NURBS surface modeler used for complex massing, parametric design via the bundled Grasshopper visual-scripting environment, and computational architecture; one-time license with native DWG, DXF, and IFC export. | Paid / one-time | Opens + exports | Partial | 4.2/5 | worth-it |
| Autodesk's stripped-down, single-user version of Revit for 3D architectural BIM modeling and documentation without the multidisciplinary and worksharing features of full Revit. | Paid / subscription | Listed | Unknown | 3.8/5 | solid |
| Dassault Systemes' AutoCAD-like 2D CAD tool for creating and editing DWG files at a lower price than AutoCAD. | Paid / subscription | Listed | Unknown | 3.8/5 | solid |
| A free, open-source parametric 3D modeler whose built-in BIM workbench provides architectural elements (walls, windows, structure) and clean IFC export. | Free | Listed | Unknown | 3.8/5 | solid |
| ZWSOFT's DWG-compatible 2D/3D CAD application marketed as a faster, cheaper AutoCAD alternative. | Paid / one-time | Listed | Unknown | 3.8/5 | solid |
| Free, open-source parametric 3D CAD modeler with a dedicated BIM Workbench that reads and writes IFC, STEP, and DXF; scriptable via Python; suitable for budget-constrained solo architects who need IFC interoperability without a subscription. | Free | Listed | Unknown | 3.4/5 | solid |
| Direct-modeling CAD tool built for iPad and Apple Pencil with Windows and Mac desktop apps; exports STEP, DWG, OBJ, and FBX for AEC handoff; suited for conceptual solid modeling and client presentations on the go. | Freemium | Listed | Unknown | 3.0/5 | solid |
| Constructible structural BIM software from Trimble for steel, concrete, precast, and timber detailing -- produces fabrication-ready shop drawings, rebar detailing, and CNC/DSTV output directly from the 3D model. | Paid / quote-only | Opens + exports | Partial | 3.0/5 | solid |
For broader category context, compare the same format against the rest of the AEC catalog on the landscape map.