Finding assets not in use

Question

Is there a way to know what is of all my GO, textures, sounds, etc, are not in use in all scenes, to delete it? When i tested my game, I have inserted some textures, sounds, GO etc and some of them are not in use. I'm using Unity 5.1.1.

Answer 1

2018 ..

The modern solution is simply ..

Click on your scene(s) and select "Select Dependencies".

It will show you what is used; the rest is unused. Really it's that easy.

---

As with many things in Unity pipeline, it is very common to use an asset, virtually every project uses a few well known assets. "A+ Assets Explorer" (link) is very common.