Notepad++ is a text editor and source code editor for Windows. It aims to be a lightweight and robust editor for a variety of programming and scripting languages. One advantage of Notepad++ over the built-in Windows text editor Notepad, is that Notepad++ supports tabbed editing, which allows working with multiple open files. Notepad++ opens large files significantly faster and can be used as a replacement for Windows Notepad.

Notepad++ is distributed as free software. The project was hosted on, from where it has been downloaded over 27 million times and twice won the SourceForge Community Choice Award for Best Developer Tool. The project is hosted on TuxFamily since June 2010. To display and edit text and programming language source code files, Notepad++ uses the Scintilla editor component.

Notepad++ supports syntax highlighting and code folding for over 50 programming, scripting, and markup languages.[6][8] It attempts to automatically detect the language that a given file uses, using a modifiable list of file extension bindings. Users may also manually set the current language, overriding the extension's default language. The program also supports autocompletion for a subset of the API of some programming languages.

The following languages are natively supported by Notepad++ as of version 6.5:

Ada, asp, Assembly, autoIt
C, C++, C#, Caml, Cmake, COBOL, CoffeeScript, CSS
D, Diff
Flash ActionScript, Fortran
Gui4CLI, Go
Haskell, HTML
Java, Javascript, JSP
Makefile, Matlab, MS-DOS, INI file
NSIS, Normal Text File
Pascal, Perl, PHP, PostScript, PowerShell, Properties file, Python
R, Resource file, Ruby
Shell, Scheme, Smalltalk, SQL
Visual Basic, VHDL, Verilog

Users can also define their own language (for syntax highlighting) and its respective API (for autocompletion) by using the built-in User Language Define System.[6] Users may configure the syntax highlighting's font styles per element, per language, and the resulting formatted script may be printed in full-color (WYSIWYG). Additionally, Notepad++ displays indent guidelines when source code is indented with tab characters, and highlights

Notepad++ has support for macros and plugins.Currently, there are 27 official plugins for Notepad++, 10 of which are included by default in the program.The first plugin to be included in the program was "TextFX", which includes features such as W3C validation for HTML and CSS, text sorting, character case alteration and quote handling. Plugin site lists over 140 compatible of the plugin in notepad++ compare plugin