WebFiddleWebFiddle
    💎
    Ruby Playgroundruby.wasm
    Terminal Output
    About This Ruby Online Compiler
    Experience the power of Ruby in your browser. Our Ruby Playground is an advanced online Ruby interpreter powered by WebAssembly (ruby.wasm). Write, test, and run Ruby online without any server setup.
    Key Features
    • check_circleRuby 3.2+ via WebAssembly
    • check_circleOOP: classes, modules, and metaprogramming
    • check_circleStandard library: Math, Date, StringIO, and more
    • check_circleShareable code via unique URLs
    • check_circleClient-side execution — fully private
    How to Use
    1. 1Write Ruby scripts in the editor.
    2. 2Click 'Run' to execute via WebAssembly.
    3. 3See results instantly in the output console.
    4. 4Share your code with the Share button.
    Frequently Asked Questions
    The playground uses Ruby 3.2+ compiled to WebAssembly via ruby.wasm.
    Built-in standard library modules are available. External gems requiring native extensions are not supported in the WASM environment.
    Absolutely! It's perfect for beginners to practice Ruby syntax, classes, blocks, and iterators without any setup.
    Embed this sandbox
    Drop this into any page and readers can run code without leaving it. The snippet travels in the URL, so there is nothing to host and no account to create. Open the sandbox, write your example, press Share, then paste that link’s query onto the embed URL to preload it.
    <iframe src="https://webfiddle.xyz/embed/ruby" width="100%" height="480" loading="lazy"
        style="border:1px solid #ddd;border-radius:8px"
        title="WebFiddle ruby sandbox"></iframe>
    Preview the embed