GCC for Windows 64 & 32 bits

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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 9 has been released

v9.0.0: 2021-05-22

Notable changes: * UCRT updates by Biswapriyo Nath * Wine updates by Jacek Caban * Various new and updated API headers by Biswapriyo Nath and Liu Hao * Various UCRT and MSVCRT fixes by Martin Storsjö * at_quick_exit implementation by Martin Storsjö * dism API by Biswapriyo Nath * idl fixes by Steve Lhomme * Winpthreads fixes by Liu Hao * gettimeofday precision increase by Christian Franke

And many other additions thanks to, but not limited to (in Alphabetical order)

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

Amit Bhandari posted a comment on discussion Open Discussion

i am not able to install mingw w64 please hep me i urgently need it to complete my collage assignment

Jonathan Yong committed [eac8c3]

Remove accidentally added binary file

LH_Mouse committed [4fc526]

headers: Add missing names in windns.h

Jonathan Yong committed [75d4fe]

Add status and error codes for case sensitive dirs

Jonathan Yong committed [0f647f]

crt: Add new APIs to lib32/user32.def

Jonathan Yong committed [ce4936]

crt: Remove two duplicate symbols in lib32/user32.def

Jonathan Yong committed [4fbf7d]

crt: Update the decoration of the EditWndProc symbol to EditWndProc@20

Jonathan Yong committed [ae5b3b]

crt: Remove commented out ordinal symbols from user32.def

LH_Mouse committed [e82b94]

crt: Add fontsub in lib32