GCC for Windows 64 & 32 bits


Mingw-w64 is an advancement of the original mingw.org project, created to support the GCC compiler on Windows systems. It has forked it in 2007 in order to provide support for 64 bits and new APIs. It has since then gained widespread use and distribution.

The development and community are very active and welcoming with new contributors every month and simple installers.

Version 5 has been released

Release: 2016-10-19

  • Fixes to the __mingw_printf family of functions.
  • DirectX updates from Wine.
  • Various updates to support Windows 7 and 10.
  • Various header typo fixes.

You can also look at the full list of versions.

Headers, Libraries and Runtime

  • More than a million lines of headers are provided, not counting generated ones, and regularly expanded to track new Windows APIs.
  • Everything needed for linking and running your code on Windows.
  • Winpthreads, a pthreads library for C++11 threading support and simple integration with existing project.
  • Winstorecompat, a work-in-progress convenience library that eases conformance with the Windows Store.
  • Better-conforming and faster math support compared to Visual Studio's.


  • gendef: generate Visual Studio .def files from .dll files.
  • genidl: generate .idl files from .dll files.
  • widl: compile .idl files.

Friend projects

Mingw-w64 interacts a lot with other projects in order to help everyone move forward. Contributions have been going to and coming from these projects:

Most Recent Activity

Artem Silivanchik posted a comment on discussion Help

Hello! I trying to build MinGW-w64 toolchain for i686-w64-mingw32 target. I used...

Jacek Caban committed [db8f08]

libuuid.a: Added a few missing GUIDs.

Jacek Caban committed [4ec95b]

comutil.h: Include comdef.h.

Jacek Caban committed [eb331b]

stdlib_s.h: Added _itoa_s overloaded helper.

Jacek Caban committed [0356d9]

rpcsal.h: Added __RPC__in_range define.

Jacek Caban committed [835aff]

shlwapi.h: Added SHCreateMemStream declaration.

Robert Gill posted a comment on ticket #532

I was wondering if it would be possible to get commit 9b5c53 pulled into the v5.x...

Jonathan Yong committed [68cc28]

INFINITY defined as double with __GNUC__ define...

niXman modified ticket #582

Unable to install (or download)

Michael Frederick posted a comment on ticket #582

I downloaded the new .exe. It is installed correctly on Windows 10. Thank you.