editor script memory leak

i have sort of bigger project and we are using many custom memory scripts, mostly our tools but also some editor extensions from asset store

the problem is, that when i am in one scene longer time then save and close takes almost 3 minutes and actually whole unity is stuck and looks like it will crash soon so i think maybe i have memory leak somewhere in some of our scripts and i'd like to find it, but i have no idea how to do it. because profiler works in runtime but probably not in editor