Online Nim Compiler
Nim is a systems programming language that compiles to C, C++, or JavaScript. Run Nim code instantly in your browser.
# Online Nim compiler
# Write Nim code in this online editor and run it
proc greet(name: string) =
echo "Hello, ", name, "!"
greet("Tutorsbot")
Nim is a systems programming language that compiles to C, C++, or JavaScript. Run Nim code instantly in your browser.
What is Nim?
Nim is a statically-typed, compiled systems language whose syntax resembles Python but whose compiler emits C, C++, Objective-C, or JavaScript. You get near-C performance with significantly less ceremony than C itself — no header files, no manual memory management, and a powerful metaprogramming system that runs at compile time.
Why run Nim in the browser
Nim compiles to a native binary, so every "run" cycle involves invoking the compiler (one-to-three seconds for small files). A browser sandbox skips the compile step and runs your snippet via Nim's interpreted VM, ideal for learning the syntax, validating a function, or sketching logic before committing to a build.
Common Nim tasks
Game scripting (Nim is a popular choice for embedded scripting in game engines), parsers and combinators, numerical code with the math and complex modules, network services (Jester, Prologue), and bindings to C libraries without writing glue code. The sandbox runs Nim 1.6.2.
Getting started with Nim 1.6.2
Paste a snippet — proc greet(n: string) = echo "hi, ", n; greet("Tutorsbot") — hit Run, see stdout. The highlighter recognises Nim's significant indentation, type inference, proc/func for routines, and the var/let/const trio. Nim's ..< half-open ranges are a distinctive syntax highlight.
Why use the Nim online compiler?
- Nim 1.6.2
- Systems programming
- Compiles to C/JS
- Metaprogramming
Frequently Asked Questions
- Is the Nim online compiler free?
- Yes — Tutorsbot's Nim compiler is completely free. No account required, no installation, and no usage limits.
- Do I need to install Nim?
- No. The Nim compiler runs entirely in your browser. No runtime, no SDK, no PATH configuration. Open the page and start coding.
- Is my Nim code saved between sessions?
- Yes — your code autosaves to your browser's local storage so you can resume where you left off. You can also generate a shareable URL.
- Can I share Nim code with others?
- Yes. Click the Share button to copy a URL that encodes your script. Anyone with the link can open and run it instantly — no account required on their end.
- Is the Nim compiler safe to use?
- Absolutely. Every program runs in an isolated sandbox. Your local system is never exposed to the executed code, and nothing is persisted after the execution window.