Hello all - I was looking for such a tool as well. Curious, do some of these tools simply delete from the uploads folder, or are they savvy enough to remove database references to the images. I just assumed that the DB gets a media table record to track the media.
aside: when we look at the unattached images bulk select option... are these simple ones that have no inserted (posts, page, etc) records? I'd be happy to simply use this to select all unattached items and then delete those, but I'm that my custom theme(has custom data types e.g. "portfolio" ) may have items attached that WP can't detect. Is this a valid guess?
Thanks in advance! :)