Interactive Playground

Try Fenrir code directly in your browser. Write Python code, click Run, and see the output instantly. Powered by Pyodide (Python via WebAssembly).

Python Code
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 How it works

        
    
            
  • Code runs in your browser using Pyodide (Python via WebAssembly)
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  • Examples simulate Fenrir framework behavior with pure Python
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  • First run may take 5-10 seconds to load Python runtime
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  • For real Fenrir code, see the Quick Start Guide
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