UDON is designed to be cross-platform, and should work on any OS on which Blender runs (it has been primarily tested on Linux and Windows).


Blender version 3.3 or later is required.

Blender 3.5 warning!

A bug in Blender 3.5 causes files with custom nodes to crash in some situations. This has been fixed in Blender 3.5.1, so it is critical to update, in order to avoid crashes when using UDON.


UDON is not guaranteed to work with Experimental Blender builds (such as Alpha or Beta versions). Testing and bug reports are still encouraged, but as always with pre-release software, it is not recommended to use it with production files.

Installation Process

UDON does not require any special procedures for installation. Simply use Blender's standard addon installation procedure:

  1. Download the zip file you got with your purchase of UDON (no need to unzip it)
  2. Open Blender and go to Edit ⏵ Preferences...
  3. Select the Add-ons tab
  4. Press the Install... button from the top bar
  5. Navigate to the UDON zip file, select it, and press Install Add-on
  6. Enable UDON by checking the box in the add-on list

Updating Process

  1. Follow the installation process steps 1-5 (step 6 is not necessary, if UDON was already enabled)
  2. Restart Blender!