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CAD · head to head

Arnold vs FreeCAD

Arnold logo

Arnold

CAD

Advanced Monte Carlo ray tracing renderer

From
$29/month
Rated
-
Full reviewWebsite
FreeCAD logo

FreeCAD

CAD

Open-source parametric 3D CAD modeler

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only FreeCAD has a free tier, so it costs nothing to try first.
  • Each has a real cost: Arnold the Internet Archive's capture of Autodesk's Arnold overview page on 30 December 2022 stated a subscription can be installed on up to 3 computers or devices, though only the named user may run it on one machine at a time, and includes access to the 3 previous major versions.; FreeCAD no pricing published; product is completely free and open-source
  • They diverge on capability: Arnold covers Ray tracing, FreeCAD covers Parametric modeling.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Arnold and FreeCAD actually diverge.

Attributes where Arnold and FreeCAD differ
AttributeArnoldFreeCAD
Starting price$29/monthFree
Pricing modelsubscriptionopen-source
Free tierNoYes
Founded19982002

Identical on both: platforms (Windows, MacOS, Linux), user rating (Not yet rated), category (CAD).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Arnold

  • Ray tracing
  • GPU rendering
  • Production shading
  • OSL
  • Denoising
  • Maya
  • 3ds Max
  • Cinema 4D

Only in FreeCAD

  • Parametric modeling
  • Part design
  • Assembly
  • Drafting
  • FEM simulation
  • Path/CAM
  • Architecture
  • BIM

Both cover

  • Windows support
  • MacOS support
  • Linux support

What people use each for

The jobs each tool is most often brought in to do.

Arnold

  • Film productionnot FreeCAD
  • Animationnot FreeCAD
  • VFXnot FreeCAD

FreeCAD

  • Mechanical engineering designnot Arnold
  • Architectural modellingnot Arnold
  • Product design and prototypingnot Arnold
  • CAM/CNC path generationnot Arnold

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Arnold

  • The Internet Archive's capture of Autodesk's Arnold overview page on 30 December 2022 stated a subscription can be installed on up to 3 computers or devices, though only the named user may run it on one machine at a time, and includes access to the 3 previous major versions.

FreeCAD

  • No pricing published; product is completely free and open-source
  • Donations are optional and voluntary for project support

Pricing, plan by plan

Arnold

$29/month
  • Arnold$360/month
    • Standalone renderer

FreeCAD

Free

No published plan breakdown. See the FreeCAD review.

Which should you pick?

Choose Arnold if

  • You need ray tracing.
  • You work on Windows, MacOS, Linux.
  • You also want gpu rendering.
Arnold review

Choose FreeCAD if

  • You need parametric modeling.
  • You want to start without paying.
  • You work on Windows, macOS, Linux.
  • You also want part design.
FreeCAD review

Questions people ask

Is Arnold or FreeCAD better?
Neither clearly leads. Arnold starts at $29/month and FreeCAD at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Arnold or FreeCAD?
FreeCAD has a free tier; the other does not. Paid plans start at $29/month for Arnold and Free for FreeCAD.
Does Arnold or FreeCAD run on more platforms?
Arnold runs on Windows, MacOS, Linux. FreeCAD runs on Windows, macOS, Linux.
Can I use FreeCAD for free?
Yes. FreeCAD has a free tier, so you can try it without paying. Arnold starts at $29/month.
What is Arnold best used for?
Arnold is most often used for film production, animation, vfx. Of those, film production and animation are not what FreeCAD is typically brought in for.
What can Arnold do that FreeCAD cannot?
Arnold covers Ray tracing, GPU rendering, Production shading, OSL. FreeCAD covers Parametric modeling, Part design, Assembly, Drafting. Both handle Windows support, MacOS support, Linux support.

Answered from the vendors’ own pages

Arnold: How much does Autodesk Arnold cost?

Autodesk Arnold pricing is not published on the vendor website. Arnold is available through Autodesk subscription plans or standalone licensing. Customers should contact Autodesk directly for pricing quotes.

Source
FreeCAD: How much does FreeCAD cost?

FreeCAD is completely free with no licensing fees, vendor lock-in, sign-up requirements, paywalls, or restrictions. The software is open-source and available for anyone to use and adapt.

Source
Arnold: Is Arnold free for educational use?

Yes, Autodesk provides free educational licenses for Arnold to students and educators. Educational access allows learning of professional rendering capabilities at no cost.

Source
FreeCAD: Does FreeCAD offer optional support or sponsorship?

FreeCAD accepts voluntary donations to support the project. Sponsorship tiers range from $1 per month (Normal Sponsor) to $200 per month (Gold Sponsor), with different visibility levels. One-time donations of any amount are also accepted.

Source
Arnold: What does Arnold render?

Autodesk Arnold is an industry-standard photorealistic rendering engine used for visual effects, animation, and design visualization. It supports GPU and CPU rendering with advanced features for film, television, and product design.

Source
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