looking for a UTF-8 text editor

Question

I am looking for a (simple) text editor that can handle text in different encodings in the same document.

I need to develop some sites with mixed Japanese and Englis

Answer 1

You can use just Notepad.exe with the "Arial Unicode MS" font (if all of your text is left-to-right, given the English windows version). Just Save as, select UTF-8.

In general, use your favourite editor with a font like "Arial Unicode MS". I mention this one because is the font with the greatest Unicode coverage I have seen,