Notepad++ 5.3.1 is a free source code editor and Notepad replacement that supports several languages. It runs in the MS Windows environment. Based on a very powerful editing component Scintilla, Notepad++ is written in C++ and uses pure Win32 API and STL which ensures a higher execution speed and smaller program size. Its use is governed by GPL License. Now here's a version for U3 users, packaged by dstrout.