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K-3D

k-3d.org

Free plan WindowsmacOSLinux
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Spec score 7.9 #20 of 32 in 3D Animation Software

What it is

K-3D is free desktop software for 3D modeling and animation on Linux, macOS, and Windows. It supports procedural and parametric workflows, with interactive property changes and immediate results. A node-based visualization pipeline connects components and passes selections between modifiers. An undo tree supports both undo and redo operations. The site describes native RenderMan support within the K-3D interface, plus real-time mirroring and welding of one side of a model into a subdivision surface. Source code is released under the GNU General Public License. Downloads include macOS, Windows, and source code; development information also lists GNU/Linux, MacOS X, FreeBSD, Microsoft Windows, and other build platforms. Optional build integrations include Collada, DBus, GLX, Gnome VFS, GTS, ImageMagick, ODE, OpenCASCADE, and OpenEXR. Documentation is provided through an archived wiki, with forums, a development mailing list, and issue submission for support.

Spec sheet

Product
K-3D is free software for 3D modeling and animation.Read 9 Oct 2026 · k-3d.org
Audience
The site describes K-3D as a tool for artists, including new artists and professionals.Read 9 Oct 2026 · k-3d.org
Free plan
YesRead 20 Sep 2026 · k-3d.org
Support
The site points users to forums, a development mailing list, or issue submission for help.Read 9 Oct 2026 · k-3d.org
License
The source code is available under the GNU General Public License.Read 9 Oct 2026 · k-3d.org
Animation tools
YesRead 20 Sep 2026 · k-3d.org
Build platforms
The development page says K-3D can be built on GNU/Linux, MacOS X, FreeBSD, Microsoft Windows, and other platforms.Read 9 Oct 2026 · k-3d.org
Documentation
Documentation is available through an archived wiki.Read 9 Oct 2026 · k-3d.org
Downloads
The download page lists MacOS, Windows, and source code.Read 9 Oct 2026 · k-3d.org
Modeling
The site describes mirroring one side of a model and welding the result into a subdivision surface in real time.Read 9 Oct 2026 · k-3d.org
Optional integrations
Optional build integrations listed include Collada, DBus, GLX, Gnome VFS, GTS, ImageMagick, ODE, OpenCASCADE, and OpenEXR.Read 9 Oct 2026 · k-3d.org
Parametric modeling
YesRead 20 Sep 2026 · k-3d.org
Pipeline
Its node-based visualization pipeline lets users connect components and pass selections between modifiers.Read 9 Oct 2026 · k-3d.org
Platform access
desktopRead 20 Sep 2026 · k-3d.org
Render engine
externalRead 20 Sep 2026 · k-3d.org
Rendering
The site describes native RenderMan support integrated with the K-3D interface.Read 9 Oct 2026 · k-3d.org
Undo
It includes an undo/redo system with an undo tree.Read 9 Oct 2026 · k-3d.org
Workflow
It supports procedural and parametric workflows, with interactive property changes and immediate results.Read 9 Oct 2026 · k-3d.org

Plans and prices

K-3D Free Free software; no paid tiers or usage limits stated Read 9 Oct 2026 · k-3d.org

Every K-3D plan and price →

Strong points and limits

Strong points

  • Free software with no paid tiers stated
  • Procedural and parametric workflows
  • Node-based modifier pipeline
  • Undo tree for revisions
  • Native RenderMan support described

Limits

  • Documentation is through an archived wiki
  • Rendering engine is external
  • No free trial is offered
  • Optional integrations may require separate builds

Who it suits

K-3D suits artists, including newcomers and professionals, who need free procedural or parametric modeling and animation software. It runs as a desktop application.

Verdict

K-3D provides a free, extensible foundation for modeling and animation across three desktop platforms. Its archived documentation and external rendering setup may require extra preparation.

Where Specifiction places it

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