NASSCAD
by NASSCAD
What NASSCAD is
NASSCAD is a parametric 3D CAD application for making mechanical parts, preparing fabrication files, and viewing STEP assemblies and IFC building models. It is aimed at makers and engineers working with FDM printing, CNC, and mechanical assembly. The browser edition needs no installation or account, and modeling runs locally; processing can also run in MEDUSA on the user's computer. The Windows x64 pack includes NASSCAD, MEDUSA, and dependencies, with Setup and Portable editions for offline use. Modeling tools include CSG operations, parametric generators, scene management, and B-Rep fillet and chamfer tools. An integrated JavaScript console exposes application functions for automation and procedural modeling. NASSCAD imports STL, OBJ, 3MF, GLB, PLY, STEP, and IFC files, and exports several of these formats plus SVG and DXF. STEP import is for viewing and inspection, while IFC imports are inspection scenes rather than editable authoring models. The free plan costs nothing. Selling the software or offering it as a paid service requires an agreement with NassLab.
Who it suits
NASSCAD suits makers and engineers creating mechanical parts or fabrication files for FDM printing and CNC. It may also fit users who need to inspect STEP assemblies or IFC building models.
What it does well
- Browser use needs no installation or account.
- Modeling runs locally in the browser.
- Windows pack offers Setup and Portable editions.
- JavaScript console supports automation and procedural modeling.
- Imports and exports cover multiple 3D formats.
What to know first
- STEP workflows are limited to viewing and inspection.
- IFC imports are not editable authoring models.
- Paid resale or service use requires an agreement.
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Free | Browser-based use · No account required · Offline-ready single-file application · Commercial use requires a written agreement | Free |
| NASSCAD | Browser and Windows x64 editions · no account or subscription · education license granted free of charge to eligible schools, teachers, students, training centres, associations, FabLabs, makerspaces and libraries | Free |
As nasscad.com lists them, read 19 Sept 2026. The maker's own page has the final word.
Verdict
NASSCAD combines parametric modeling, fabrication preparation, and model inspection in free browser and Windows editions. Check the STEP and IFC limitations, and the license restriction on paid use, before choosing it.
Facts from NASSCAD's own pages
- Assembly design
- Yes · nasscad.com, 19 Sept 2026
- Browser access
- The browser edition requires no installation or account, and the site says modeling runs locally. · nasscad.com, 11 Oct 2026
- Cloud collaboration
- No · nasscad.com, 19 Sept 2026
- File formats
- The site lists imports for STL, OBJ, 3MF, GLB, PLY, STEP, and IFC, and exports including STL, OBJ, 3MF, GLB, PLY, STEP, and IFC4, plus SVG and DXF section cuts. · nasscad.com, 11 Oct 2026
- Free plan
- Yes · nasscad.com, 19 Sept 2026
- Headquarters
- France · nasscad.com, 28 Sept 2026
- IFC limits
- Imported IFC is an inspection scene rather than an editable authoring model, and the site does not guarantee full BIM round-trip preservation. · nasscad.com, 11 Oct 2026
- Integrations and compatibility
- The site names Cura, PrusaSlicer, Bambu Studio, Blender, MeshLab, FreeCAD, Fusion 360, and Autodesk Viewer as compatible tools or destinations for listed formats. · nasscad.com, 11 Oct 2026
- Intended users
- The site says NASSCAD is designed for makers and engineers working with FDM printing, CNC, and mechanical assembly. · nasscad.com, 11 Oct 2026
- License restriction
- The site says selling NASSCAD or offering it as a paid service requires an agreement with NassLab. · nasscad.com, 11 Oct 2026
- Local processing
- CAD processing runs in the browser or in MEDUSA on the user's computer. · nasscad.com, 11 Oct 2026
- Modeling features
- Features include Manifold CSG union, subtraction and intersection, parametric generators, scene management, and B-Rep fillet and chamfer tools. · nasscad.com, 11 Oct 2026
- Modeling method
- parametric · nasscad.com, 19 Sept 2026
- Privacy
- The site says hosted use may use Google Analytics for usage statistics, while analytics is disabled for a local copy; model processing is separate and local. · nasscad.com, 11 Oct 2026
- Purpose
- NASSCAD is a 3D parametric CAD application for creating mechanical parts, preparing fabrication files, and viewing STEP assemblies and IFC building models. · nasscad.com, 11 Oct 2026
- Scripting
- NassScript exposes application functions through an integrated JavaScript console for automation and procedural modeling. · nasscad.com, 11 Oct 2026
- STEP limits
- STEP import is described as a viewing and inspection workflow, and exports are not guaranteed to repair geometry, produce closed solids, or preserve all CAD semantics. · nasscad.com, 11 Oct 2026
- Support
- The site directs questions, bug reports, and feature requests to [email protected] and provides a user manual and NassScript reference. · nasscad.com, 11 Oct 2026
- Supported platforms
- web, Windows · nasscad.com, 19 Sept 2026
- Windows edition
- The Windows x64 All-in-One pack includes NASSCAD, MEDUSA, and dependencies, with Setup and Portable editions for offline use. · nasscad.com, 11 Oct 2026
Where NASSCAD stands on Freedom251
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