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Efficient and expressive programming.

Nim is a systems and applications programming language. Statically typed and compiled, it provides unparalleled performance in an elegant package.

  • High-performance garbage-collected language
  • Compiles to C, C++ or JavaScript
  • Produces dependency-free binaries
  • Runs on Windows, macOS, Linux, and more
Install Learn more 
# Compute average line length
var
  sum = 0
  count = 0

for line in stdin.lines:
  sum += line.len
  count += 1

echo("Average line length: ",
     if count > 0: sum / count else: 0)
More examples at RosettaCode…

Recent articles

08 January 2019

Nim in 2018: A short recap

There were several big news in the Nim world in 2018 – two new major releases, partnership with Status, and much more. But let us go chronologically.

31 December 2018

Version 0.19.2 released

The Nim team is happy to announce that the latest release of Nim, version 0.19.2, is now available. Nim is a systems programming language that focuses on performance, portability and expressiveness.

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Featured projects

Karax

SPA framework

Karax is a framework for developing single page applications in Nim. Leverage Nim's macro system to produce a framework that allows for the development of applications that are boilerplate free.

Nimbus

Ethereum client

Nimbus aims to be a sharding client for Ethereum 2.0 Blockchain. Ethereum will potentially be on embedded systems, Nimbus will be designed to perform well on IoT and personal mobile devices.

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Learn Nim today

Build command-line applications, games, web servers, kernels and everything else in between. Nim has a low barrier to entry and offers powerful features you won't find in many mainstream programming languages.

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Now available.

The first Nim book, Nim in Action, is now available for purchase as an eBook or printed soft cover book.* Learn the basics such as Nim's syntax and advanced features including macros, and gain practical experience with the language by being led through multiple application development examples.

  • Teaches the basics including the syntax of Nim.
  • Explains how to use the Nimble package manager.
  • Includes step-by-step instructions and explanations of how to develop various applications, including a chat program, a Twitter clone and more.

* Printed soft cover book is out now!

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Support Nim

Join the 100+ companies and individuals that support Nim

The Nim project is developed globally by a group of volunteers. We welcome recurring donations, which enable us to spend more time working on Nim.

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Looking for the GitHub repository?

The Nim compiler and tools are all written in Nim and licensed under the MIT license, with most development taking place on GitHub. Be sure to watch the repository to get updates on Nim's development, or star it to give us some brownie points.

Source code