Side by side

NASSCAD vs Partwright

Both stand on 3d cad software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.

NASSCAD

Free plan WebWindows

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.

Visit NASSCAD

Partwright

Free plan Web

Partwright combines browser-based parametric CAD with multiple modeling approaches, AI integrations, and a broad set of file formats. Check the non-commercial license condition and validate geometry before relying on a model.

Visit Partwright

The facts

	NASSCAD	Partwright
Free plan	Yes	Yes
Open source	Not published	Not published
Runs on	Web, Windows	Web
Lowest paid plan	Free or on request	Free or on request
Plans published	2	1
Maker	NASSCAD	Not published
Website	nasscad.com	partwrightstudio.com
On 3d cad software	#26 of 79	#30 of 79

NASSCAD: 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.

Partwright: what it does well

Runs in a web browser and offers a programmatic API.
Supports assembly design and several modeling approaches.
Imports and exports a broad range of formats.
Models and session materials stay in the user's browser.

What to know first

Free plan does not permit commercial use.
Generated geometry may be unsuitable for manufacturing.
JavaScript and OpenSCAD code runs with page capabilities.
AI provider costs are the user's responsibility.

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