QuantCAD vs OpenSCAD
OpenSCAD builds models from code you write in its own modeling language. QuantCAD builds them from a plain-language description. QuantCAD produces B-rep solids on the Open CASCADE kernel and exports STEP and STL, while OpenSCAD exports mesh formats such as STL and 3MF, plus 2D formats such as DXF and SVG.
Last updated
How do QuantCAD and OpenSCAD differ?
| Aspect | QuantCAD | OpenSCAD |
|---|---|---|
| Input | A description in plain language, refined in chat. | A program in the OpenSCAD language, with parameters. |
| 3D export formats | STEP (AP242, millimetres) and STL. | STL, OFF, AMF and 3MF. 2D export to DXF, SVG, PNG and PDF. |
| Best for | A first working model quickly, changes described in words, STEP handoff to other CAD tools. | Deterministic, code-defined part families kept in version control. |
| Skills needed | No CAD or coding experience. Stating dimensions improves the result. | Comfort with writing code. |
| Where it runs | A web browser, with no installation. | A desktop application for Windows, macOS and Linux. |
| Price | Free plan. Paid plans from $29 per month. | Free, open-source software. |
OpenSCAD export formats from the OpenSCAD User Manual, checked Sep 27, 2026. QuantCAD is not affiliated with the OpenSCAD project.
Which should you choose?
Choose QuantCAD when you want a working B-rep model and a STEP file without writing code, and when the design is still changing. Choose OpenSCAD when you already know the specification, want every dimension as a parameter in a script, and mostly need STL or 3MF for printing.
Frequently asked questions
When is OpenSCAD the better fit?
OpenSCAD is a good fit when you want a model that is fully defined by code: every dimension is a parameter, the file diffs cleanly in Git, and the same script regenerates a whole family of parts. It suits people who are comfortable programming and who mostly need mesh output such as STL or 3MF for printing.
When is QuantCAD the better fit?
QuantCAD fits when you want to go from requirements to a working model without writing code, change it by describing what should be different, and hand it on as a STEP file. QuantCAD builds every part as a B-rep solid on the Open CASCADE kernel.
Does OpenSCAD export STEP files?
The OpenSCAD user manual lists STL, OFF, AMF and 3MF for 3D export, and DXF, SVG, PNG and PDF for 2D. STEP is not on that list. QuantCAD exports STEP (AP242) directly.
Can I use QuantCAD and OpenSCAD together?
Yes. Use QuantCAD to reach a working shape quickly, then rebuild the final version as an OpenSCAD script if you need a code-defined part family. The QuantCAD model gives you the dimensions and layout to copy.