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Nim (formerly known as "Nimrod") is a compiled, garbage-collected systems programming language which has an excellent productivity/performance ratio. Nim's design focuses on efficiency, expressiveness, elegance (in the order of priority).
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Merge pull request #2674 from Xaseron/patch-1

fixed typo in threadpool.nim
latest commit 45b6082c12
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Nim Compiler

This repo contains the Nim compiler, Nim's stdlib, tools and documentation.


Compiling the Nim compiler is quite straightforward. Because the Nim compiler itself is written in the Nim programming language the C source of an older version of the compiler are needed to bootstrap the latest version. The C sources are available in a separate repo here.

The compiler currently supports the following platform and architecture combinations:

  • Windows (Windows XP or greater) - x86 and x86_64
  • Linux (most, if not all, distributions) - x86, x86_64, ppc64 and armv6l
  • Mac OS X 10.04 or higher - x86, x86_64 and ppc64

In reality a lot more are supported, however they are not tested regularly.

To build from source you will need:

  • gcc 3.x or later recommended. Other alternatives which may work are: clang, Visual C++, Intel's C++ compiler
  • git or wget

If you are on a fairly modern *nix system, the following steps should work:

$ git clone git://
$ cd Nim
$ git clone --depth 1 git://
$ cd csources && sh
$ cd ..
$ bin/nim c koch
$ ./koch boot -d:release

koch install [dir] may then be used to install Nim, but lots of things don't work then so don't do that. Add it to your PATH instead. More koch related options are documented in doc/koch.txt.

The above steps can be performed on Windows in a similar fashion, the build.bat and build64.bat (for x86_64 systems) are provided to be used instead of

Getting help

A forum is available if you have any questions, and you can also get help in the IRC channel on Freenode in #nim. If you ask questions on StackOverflow use the nim tag.


The compiler and the standard library are licensed under the MIT license, except for some modules where the documentation suggests otherwise. This means that you can use any license for your own programs developed with Nim, allowing you to create commercial applications.

Read copying.txt for more details.

Copyright (c) 2006-2015 Andreas Rumpf. All rights reserved.

Build Status

Build Waterfall

Linux Windows Mac
x86 linux-x86 windows-x86 mac-x86
x86_64 linux-x86_64 windows-x86_64 mac-x86_64
arm linux-armv5
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