Notepad++ is a free software , You can use it free for coding .
Notepad++ is a text editor and source code Editor.
Notepad++ which allows working with multiple open files in a single window.
Current software Version is v7.7.1 , you can download it by Click here
You can use it for Html , Css , php , SQL , java , java-script , jqury , c , c++ , Json , xml
Notepad++ have more than 77+ version