"Hierarchy Tree" is an asset package for Unity. The package renders a tree view in Unity's hierarchy window. Just add the package to your project, and that's all; no further steps required. The project is free and open source. You can find the source code and further details in the project repository.
Motivation: Unity's hierarchy tree doesn't render any edges by default, which makes it hard to understand the depth of the nodes and the parent-child relationships between them. This really bothered me; the hierarchy view just felt incomplete. So I decided to implement this feature myself. The package renders the tree and highlights the subgraph of selected nodes.
Here, I want to share this small package with you. I think it's one of the few packages I add to almost every project I work on. I hope it helps you to improve your editor, and it makes you as happy as it makes me when I interact with the hierarchy. :)
Install the Package: If you want to have a tree view in your hierarchy, then you just have to add the package to your project. That's all. You can find instructions on how to install the package in the project repository.
Support & Contribute: If you want to support me and my projects, you can follow me on GitHub and Mastodon. Just come by and say hello. I would love to hear how you are using this project. If you want to contribute to this project, you are welcome to do so. Leave me a message and we will find a way to collaborate.