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CAD · head to head

KiCad vs OpenSCAD

KiCad logo

KiCad

CAD

Free open source schematic capture and PCB layout with no seat, board size or layer limits

From
Free
Rated
-
Full reviewWebsite
OpenSCAD logo

OpenSCAD

CAD

The programmers solid 3D CAD modeler

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: KiCad there is no vendor obligation behind the free software, so a blocking bug is escalated to a volunteer community unless you separately buy a contract from KiCad Services Corporation.; OpenSCAD script-based workflow, not interactive design interface
  • They diverge on capability: KiCad covers Schematic capture, OpenSCAD covers Script-based modeling.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which KiCad and OpenSCAD actually diverge.

Attributes where KiCad and OpenSCAD differ
AttributeKiCadOpenSCAD
Pricing modelOpen source, no licence feefree
PlatformsWindows, macOS, LinuxWindows, macOS, Linux, WebAssembly
FoundedUnknown2009

Identical on both: starting price (Free), free tier (Yes), 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 KiCad

  • Schematic capture
  • PCB layout
  • No design limits
  • 3D viewer
  • Manufacturing output
  • Scripting

Only in OpenSCAD

  • Script-based modeling
  • CSG operations
  • 2D to 3D extrusion
  • Parameterization
  • STL export
  • Preview
  • 3D printers
  • Slicers

What people use each for

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

KiCad

  • A hardware startup designing a multi-layer board without paying for an Altium seatnot OpenSCAD
  • A university teaching PCB design where per-student licences are unaffordablenot OpenSCAD
  • An open hardware project that needs design files anyone can open and modifynot OpenSCAD
  • An engineer prototyping a board at home who needs commercial rights on the outputnot OpenSCAD

OpenSCAD

  • Parametric 3D design for manufacturing and 3D printingnot KiCad
  • Technical design with scripted control over geometrynot KiCad
  • Procedural model generationnot KiCad

Where each one falls short

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

KiCad

  • There is no vendor obligation behind the free software, so a blocking bug is escalated to a volunteer community unless you separately buy a contract from KiCad Services Corporation.
  • High speed design support, including advanced constraint management, differential pair and impedance tooling, remains behind Altium and Cadence, which matters as soon as boards carry fast interfaces.
  • Rigid-flex and complex stack-up design is weak, so products with flex circuits usually need a commercial package.
  • Component library and part sourcing integrations are thinner than the commercial tools, so parts data and availability checking is manual work someone has to own.
  • Multi-engineer design data management is not provided; teams end up assembling Git workflows themselves, and merge handling on binary-adjacent design files is awkward.

OpenSCAD

  • Script-based workflow, not interactive design interface
  • Limited to constructive solid geometry and 2D extrusion modelling
  • Not suitable for artistic 3D modelling or computer animation
  • Complex build dependencies (Qt, CGAL, Boost)

Pricing, plan by plan

KiCad

Free
  • KiCadFree
    • Full suite under GPL
    • No board size, layer or component limits
    • Commercial use permitted
  • Commercial support$undefined/year
    • Support contracts sold separately by KiCad Services Corporation
    • Priority issue handling and consulting
    • Not included with the free software

OpenSCAD

Free

No published plan breakdown. See the OpenSCAD review.

Which should you pick?

Choose KiCad if

  • You need schematic capture.
  • You want to start without paying.
  • You work on Windows, macOS, Linux.
  • You also want pcb layout.
KiCad review

Choose OpenSCAD if

  • You need script-based modeling.
  • You want to start without paying.
  • You work on Windows, macOS, Linux, WebAssembly.
  • You also want csg operations.
OpenSCAD review

Questions people ask

Is KiCad or OpenSCAD better?
Neither clearly leads. KiCad starts at Free and OpenSCAD at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, KiCad or OpenSCAD?
KiCad starts at Free and OpenSCAD at Free.
Does KiCad or OpenSCAD run on more platforms?
KiCad runs on Windows, macOS, Linux. OpenSCAD runs on Windows, macOS, Linux, WebAssembly.
Can I use KiCad for free?
Both have a free tier, so you can try either at no cost before committing.
What is KiCad best used for?
KiCad is most often used for a hardware startup designing a multi-layer board without paying for an altium seat, a university teaching pcb design where per-student licences are unaffordable, an open hardware project that needs design files anyone can open and modify, an engineer prototyping a board at home who needs commercial rights on the output. Of those, a hardware startup designing a multi-layer board without paying for an altium seat and a university teaching pcb design where per-student licences are unaffordable are not what OpenSCAD is typically brought in for.
What can KiCad do that OpenSCAD cannot?
KiCad covers Schematic capture, PCB layout, No design limits, 3D viewer. OpenSCAD covers Script-based modeling, CSG operations, 2D to 3D extrusion, Parameterization.

Answered from the vendors’ own pages

KiCad: Is KiCad really free for commercial work?

Yes. It is GPL licensed with no restriction on commercial use, board size, layer count or component count.

OpenSCAD: What is the cost of OpenSCAD?

OpenSCAD is free software with no licensing fees, subscriptions, or costs of any kind. The software is available as open-source with no restrictions on commercial or non-commercial use.

Source
KiCad: Can I buy support?

Yes, but not from the project. KiCad Services Corporation sells commercial support contracts separately; CERN moved to exactly that arrangement after ending its donation programme.

KiCad: How is development funded?

Through donations and sponsors administered via The Linux Foundation, plus contributed engineering time.

KiCad: Is it good enough to replace Altium?

For most low and medium speed boards yes. For high speed, rigid-flex and heavily constrained designs, the commercial tools still hold a clear lead.

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