Online Rust Compiler & Algorithm Visualizer
Write, compile, and run Rust code instantly in your browser. This free online Rust compiler needs no installation or signup — just type your Rust program, click Run, and see the output. Supports stdin, multi‑file projects, shareable snippet URLs, and AI help to generate, fix, and explain Rust code.
About Online Compiler
Our free online compiler lets you write, compile, and run code instantly in your browser. Supports Python, Java, C++, JavaScript, Go, Rust, and many more languages. No installation required.
Compare Languages Side by Side
Want to see how Rust stacks up against another language? Open the Code Playground to run Rust next to Python, Go, Rust, or any language — each pane picks its own language and version, and you run them together.
Supported Languages
Popular: Python, Java, C++, C, JavaScript, TypeScript, Go, Rust
Web: PHP, Ruby, Node.js, HTML/CSS
Systems: C, C++, Rust, Go, Swift
Functional: Haskell, Scala, Kotlin, F#, Clojure
Features
- Monaco Editor (VS Code) with syntax highlighting
- Real-time code execution with output streaming
- Custom compiler flags support (-O2, -Wall, etc.)
- Share code via unique snippet URLs
- Keyboard shortcuts (Ctrl+Enter to run)
Run & Visualize Rust Online
Compile and run Rust online with stdin and multi‑file support. Plus a built‑in algorithm visualizer: click Visualize to watch vectors, 2‑D matrices, hash maps, sets, stacks, queues and heaps, linked lists (singly, doubly and circular), and binary trees animate line by line — great for learning sorting, binary search, recursion, and tree traversals. It even renders concurrency: threads, channels and mutexes become swim lanes, with send/receive rendezvous and deadlock detection.
FAQ
Does it include a Rust algorithm visualizer? Yes. Click Visualize to step through your code while vectors, 2‑D matrices, hash maps, sets, stacks/queues/heaps, linked lists, and binary trees animate — the visualizer highlights each read and write and the current line.
Which data structures can I visualize? Vec<i32> and arrays, Vec<Vec<i32>> matrices, HashMap/BTreeMap, HashSet/BTreeSet, VecDeque and BinaryHeap, and linked lists & trees built from Box or Rc<RefCell> (singly, doubly and circular). The visualizer renders i32 values.
Which algorithms? Sorting (bubble, insertion), binary search, two‑pointer and sliding‑window techniques, frequency counts, recursion (with a live call stack), and binary‑tree construction and traversal.
Can I visualize concurrency? Yes. Use std::thread::spawn with mpsc channels or a Mutex and the visualizer draws one swim lane per thread, pairs channel sends with receives, and flags deadlocks (lanes parked waiting on each other).
Which Rust versions are available? Stable Rust, including 1.74, 1.75 and the latest releases.
Crates? Prefer self‑contained examples; external crates aren't persisted.
How do I share code? Click Share to generate a snippet URL.
How to Use Online Compiler
Choose from 60+ programming languages including Python, Java, C++, JavaScript, Go, Rust, and more.
Use our Monaco editor (same as VS Code) with syntax highlighting, auto-completion, and error detection.
Click Run or press Ctrl+Enter. Your code executes in a secure sandbox and output appears instantly.
Share your code via unique URL or embed interactive code snippets in your blog, book, or documentation.
For Authors, Educators & Technical Writers
Perfect for programming books, online tutorials, technical documentation, and educational content. Embed interactive, runnable code examples directly in your content.
Click Embed button above to generate embed code for your content!
Example: Hello World in Rust
fn main() {
println!("Hello, World!");
}Copy this Rust snippet into the editor above and click Run to execute it instantly — no setup required.
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