Notepad ++ 4.9.1

Notepad ++ is a very powerful free text file editor with syntax support for a large number of programming languages.

Of all the possibilities worth paying attention to:
Highlighting text and the possibility of folding blocks
WYSIWYG
Auto-completion of the word being typed
Simultaneous work with multiple documents
Zooming in and out
Notes
Highlighting brackets when editing text
Macro recording and execution

Download installation
Official site in Russian