How do I find files with no extension in Finder? I'm trying to find all files that have no extension in a Finder folder.  I know how to search by extension and exclude a specific extension but what do I type in the box if I want no extension at all?
You can set up a Finder search like this:

- None of the following is true:
- - Filename contains .
- - Kind is Folder


The Finder does however exclude some system items from search results. The same search criteria produced 19'077 search results in Finder and 131'666 in HoudahSpot.