vs AutoCAD
AutoCAD Alternative for Viewing 3D STEP Files
Open STEP and IGES in the browser — no $1,865/year license to inspect a supplier model.
AutoCAD is built for drafting. For 3D STEP review from suppliers, CADDaddy is faster and free to start: orbit assemblies, measure envelope size, and export meshes without installing AutoCAD.
- No AutoCAD subscription for read-only 3D review
- Native STEP/IGES support in browser
- Share review links with non-CAD stakeholders
- Measure and section without drafting tools
Comparison
| Feature | AutoCAD | CADDaddy |
|---|---|---|
| 3D STEP viewing | Limited / via import | Core product |
| 2D DWG drafting | Excellent | Use LibreCAD for DWG |
| Annual cost | ~$1,865/year | Free view; $19 lifetime Pro |
| Install | Desktop required | Browser only |
FAQ
Can CADDaddy replace AutoCAD?
For 2D DWG drafting, no — use LibreCAD or QCAD. For opening 3D STEP/IGES from suppliers, CADDaddy is a practical free browser alternative.
Does CADDaddy open DWG files?
CADDaddy focuses on 3D formats (STEP, IGES, STL, OBJ). See our DWG guidance page for 2D drawing workflows.
Try CADDaddy free
Drop a STEP file on the homepage or open the viewer — no install.
Drop a file on homepage