I am wondering if there is a ubuntu application that can spell check any text in any application running.
2 Answers
This question is almost a duplicate of this one:Spellcheck in Ubuntu. My answer links to a post that has a workable (if not convenient) implementation to do a system-wide spell-check.
My understanding is that there's a built in spell checker in the form of Aspell, if it's not working everywhere, it may be because some applications don't register their textboxes in a way it can see them.