explaingit

nim-lang/nim

📈 Trending★ 18,011NimAudience · developerComplexity · 4/5ActiveSetup · moderate

TLDR

Nim is a compiled programming language that combines Python's readability with C-level performance, featuring a powerful macro system for code generation.

Mindmap

mindmap
  root((repo))
    What it does
      Compiled language
      Python-like syntax
      C-level performance
    Key features
      Macro system
      Multiple styles
      Statically typed
    Getting started
      C compiler needed
      Bootstrap build
      Add to PATH
    Ecosystem
      Nimble package manager
      Standard library
      Development tools
    Platforms
      Windows Linux macOS
      x86 ARM support
    Community
      Forums Discord
      IRC Matrix
      Stack Overflow

Things people build with this

USE CASE 1

Build fast, efficient command-line tools and system utilities with Python-like syntax.

USE CASE 2

Write high-performance applications that compile to native code across Windows, Linux, and macOS.

USE CASE 3

Use metaprogramming and macros to generate or transform code at compile time for complex logic.

USE CASE 4

Develop cross-platform software for x86, x86_64, and ARM architectures with a single codebase.

Tech stack

NimCx86ARM

Getting it running

Difficulty · moderate Time to first run · 30min

Nim compiler installation and C toolchain dependency required; compilation step adds overhead vs interpreted languages.

License could not be detected automatically. Check the repository's LICENSE file before use.

In plain English

Nim is a statically typed, compiled programming language designed to combine the readability and ease of Python with the performance and control of lower-level languages. The language aims to be efficient (producing fast, lean programs), expressive (easy and pleasant to write), and elegant. It supports multiple programming styles and includes a powerful macro system for metaprogramming, the ability to write code that generates or transforms other code at compile time. This repository contains the Nim compiler itself, the standard library, development tools, and the official documentation. To build the compiler from source, you first need a C compiler (since the Nim compiler is itself written in Nim and the build process bootstraps by compiling older C sources). The build process produces a compiler you add to your PATH. The language runs on Windows, Linux, and macOS across x86, x86_64, ARM, and other architectures. Nim comes with a package manager called Nimble for managing third-party libraries. The project has an active community across forums, Discord, IRC, Matrix, and Stack Overflow. It is open source and accepts contributions.

Copy-paste prompts

Prompt 1
How do I install Nim and set up the compiler on my machine?
Prompt 2
Show me a simple Nim program that demonstrates the syntax and how to compile it.
Prompt 3
How do I use Nimble to install and manage third-party packages in a Nim project?
Prompt 4
Explain how Nim's macro system works and give me an example of writing a macro.
Prompt 5
What are the performance differences between Nim and Python for a CPU-intensive task?
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Generated 2026-05-18 · Model: sonnet-4-6 · Verify against the repo before relying on details.