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CAD · head to head

KiCad vs Houdini

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
Houdini logo

Houdini

CAD

Procedural 3D animation and VFX

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.; Houdini houdini Indie at $299 per year requires annual gross revenue under $100K USD
  • They diverge on capability: KiCad covers Schematic capture, Houdini covers Procedural modeling.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which KiCad and Houdini actually diverge.

Attributes where KiCad and Houdini differ
AttributeKiCadHoudini
Pricing modelOpen source, no licence feesubscription
FoundedUnknown1987

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

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

Only in Houdini

  • Procedural modeling
  • VFX
  • Simulations
  • Particle systems
  • Pyro FX
  • Ocean tools
  • Rigging
  • Rendering

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 Houdini
  • A university teaching PCB design where per-student licences are unaffordablenot Houdini
  • An open hardware project that needs design files anyone can open and modifynot Houdini
  • An engineer prototyping a board at home who needs commercial rights on the outputnot Houdini

Houdini

  • Procedural 3D modelling and environment generationnot KiCad
  • Visual effects simulation for pyro, fluids, cloth and rigid bodiesnot KiCad
  • Building reusable procedural assets for a studio pipelinenot 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.

Houdini

  • Houdini Indie at $299 per year requires annual gross revenue under $100K USD
  • Houdini Indie cannot be used in the same pipeline as commercial versions of Houdini
  • Houdini Indie and Apprentice save to their own .hipnc file format, which commercial Houdini pipelines do not share
  • The free Apprentice edition is non commercial, caps render resolution at 1920x1080 and watermarks output images
  • Houdini Indie ships with only 2 render tokens
  • Full DOP level simulation node access requires Houdini FX at $4,495 per workstation; Core at $1,995 exposes only SOP level pre built simulation assets
  • Extra render tokens cost $195

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

Houdini

Free
  • ApprenticeFree
    • Learning version
    • Non-commercial
  • Indie$269/month
    • Revenue limit $100K
  • Core$1995/month
    • Full commercial
  • FX$4495/month
    • Full + simulations

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 Houdini if

  • You need procedural modeling.
  • You want to start without paying.
  • You work on Windows, MacOS, Linux.
  • You also want vfx.
Houdini review

Questions people ask

Is KiCad or Houdini better?
Neither clearly leads. KiCad starts at Free and Houdini at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, KiCad or Houdini?
KiCad starts at Free and Houdini at Free.
Does KiCad or Houdini run on more platforms?
KiCad runs on Windows, macOS, Linux. Houdini runs on Windows, MacOS, Linux.
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 Houdini is typically brought in for.
What can KiCad do that Houdini cannot?
KiCad covers Schematic capture, PCB layout, No design limits, 3D viewer. Houdini covers Procedural modeling, VFX, Simulations, Particle systems.

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.

Houdini: How much does SideFX Houdini cost?

SideFX Houdini pricing is not published on their website. Specific prices for commercial, educational, and non-commercial licenses must be obtained by adding items to your cart or contacting SideFX sales directly.

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.

Houdini: What license types does Houdini offer?

Houdini offers Commercial licenses (Houdini Indie for under $100K USD annual revenue, Houdini Core, Houdini FX, Houdini Engine), Non-Commercial licenses (Houdini Apprentice free, Houdini Education for Students and Schools), Rental options, and Annual Upgrade Plans. Volume-based discounts are available for Houdini Engine.

Source
KiCad: How is development funded?

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

Houdini: Is Houdini available for free?

Yes. Houdini Apprentice is available free for non-commercial use. Houdini Education licenses are also available for students and schools at no cost.

Source
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.

Houdini: Are volume discounts available for Houdini?

Yes. Volume-based discounts are available for Houdini Engine licenses. Rental and Annual Upgrade Plan pricing have been adjusted as of Houdini 21.

Source
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