notepad-plus-plus  7.6.6
About: Notepad++ is a free source code editor and Notepad replacement that supports several computer languages. Source code.
  Fossies Dox:  ("inofficial" and yet experimental doxygen-generated source code documentation)  

Some Fossies usage hints in advance:

  1. To see the Doxygen generated documentation please click on one of the items in the "quick index" bar above or use the side panel at the left which displays a hierarchical tree-like index structure and is adjustable in width.
  2. If you want to search for something by keyword rather than browse for it you can use the client side search facility (using Javascript and DHTML) that provides live searching, i.e. the search results are presented and adapted as you type in the Search input field at the top right.
  3. Doxygen doesn't incorporate all member files but just a definable subset (basically the main project source code files that are written in a supported language). So to search and browse all member files you may visit the Fossies contents page and use the Fossies standard member browsing features (also with source code highlighting and additionally with optional code folding).
What is Notepad++ ?

Join the disscussions at     Join the chat at

Notepad++ is a free (free as in both "free speech" and "free beer") source code editor and Notepad replacement that supports several programming languages and natural languages. Running in the MS Windows environment, its use is governed by GPL License.

Since the release of version 7.6.5 Notepad++ is signed using GPG with the following key:

  • Signer: Notepad++
  • E-mail:
  • Key ID: 0x8D84F46E
  • Key fingerprint: 14BC E436 2749 B2B5 1F8C 7122 6C42 9F1D 8D84 F46E
  • Key type: RSA 4096/4096
  • Created: 2019-03-11
  • Expiries: 2021-03-10

Appveyor build status [GitHub release]()

There are two components that need to be built separately:

  • notepad++.exe: (depends on SciLexer.dll)
  • SciLexer.dll : (with nmake)

You can build Notepad++ with or without Boost - The release build of Notepad++ is built with Boost.

Since Notepad++ version 6.0, the build of SciLexer.dll that is distributed uses features from Boost's Boost.Regex library.

You can build SciLexer.dll without Boost, ie. with its default POSIX regular expression support instead of boost's PCRE one. This is useful if you would like to debug Notepad++, but don't have boost.

  1. Open PowerEditor\\notepadPlus.vcxproj
  2. Build Notepad++ like a normal Visual Studio project.

Here are the instructions to build SciLexer.dll (for both 32-bit & 64-bit) for Notepad++:

  1. Download the Boost source code. v1.55 should be used with VS 2013. Then unzip it. In my case, boost_1_55_0 is copied in C:\sources\
  2. Go to scintilla\boostregex\ then run BuildBoost.bat with your boost path. In my case: BuildBoost.bat C:\sources\boost_1_55_0 If you are compiling a 64 bit Scintilla under your VS2013 x64 Native tool command prompt, add -x64 flag. In my case: BuildBoost.bat C:\sources\boost_1_55_0 -x64
  3. Go in scintilla\win32\ then run nmake -f scintilla.mak

This will work with notepad++.exe, however some functionality in Notepad++ will be broken.

To build SciLexer.dll without PCRE support (for both 32-bit & 64-bit):

  1. For 32-bit, open a command prompt for building (a.k.a. the Developer Command Prompt for VS2013)

    • From the IDE, you can do this by right clicking on a file in Solution Explorer, and clicking "Open Command Prompt". This will open up a command prompt with all the proper environment variables.
    • From the Windows Start screen/menu, type Developer Command Prompt for VS2013, and click/select the result.
    • From an already open command prompt, run vcvarsall.bat (e.g. "C:\Program Files (x86)\Microsoft Visual Studio 12.0\VC\vcvarsall.bat").

    For 64-bit, open VS2013 x64 Native tool command prompt.

  2. Change directory (cd or pushd) to scintilla\win32\
  3. Build SciLexer.dll with one of the following commands:
    • nmake NOBOOST=1 -f scintilla.mak (normal build)
    • nmake NOBOOST=1 DEBUG=1 -f scintilla.mak (debugging build)
  4. Copy SciLexer.dll from scintilla\bin\ to the same directory as notepad++.exe.
    • For the Unicode Release configuration, the output directory (where notepad++.exe is) is PowerEditor\bin\.
    • For the Unicode Debug configuration, the output directory (where notepad++.exe is) is PowerEditor\\Unicode Debug\.

See the Notepad++ official site for more information.

Notepad++ Contributors