Notepad++ is great, my only complaint is that I don't like how heavyweight the ctrl+f process is, where you have a full-on popup window rather than just a little area for the search box somewhere along the edge of the window, like most apps do.
There are so many options!
I need these options!
That's how Android Studio works, for example. Ctrl+f brings up a find-replace subwindow at the top of the screen that works for that one file, but you can also do a "search across entire project" or "search across subdirectories" that comes up in a popup.