Notepad++ is a versatile and powerful source code editor that also serves as an excellent replacement for the default Notepad text editor in Windows. It's a very lightweight application that loads quickly.Its an open source software having features like Line Numbering, Zoom in and Out,Search and Replace. It supports detection of Modified Files When detected, the software will prompt whether the user would like to reload the source file, or overwrite the changes. It also upports syntax Highlighting a useful feature to have, whether doing a quick edit or viewing of source code.
It also gives the extra functionality to define a user's own language for the syntax folding and syntax highlighting. You can print your source code in color. It allows a user to edit the different document in the same time, and even to edit the same document synchronizely in 2 different views. It supports full drag and drop.
Notepad++ has the mission to offer a greener environment. By optimizing its routines, it results in reducing CPU power consumption then reducing the world carbon dioxide emissions
Visit - http://notepad-plus-plus.org