Sapling Tree Gen adds a parametric tree to Blender scenes through the View3D → Add → Curve menu. The add-on was created by Andrew Hale (TrumanBlending), Aaron Buchler and CansecoGPC, and documentation is available from the developer's page.
This extension was part of Blender 4.1's bundled add-ons and is now offered as-is with limited support. Version 0.3.7 updated the add-on to action slots for Blender 4.4 and newer. It requires no special permissions and is released under the GNU General Public License v3.0 or later, listed here as free.
On the blender_extensions library, Sapling Tree Gen holds a popularity rank of 13 and has been downloaded over 257,000 times. It is compatible with Blender 4.4 and newer, with a download size of 35.4 KB. For current licensing and download details, see the developer's page.