AI Code Runner
Run and test generated code directly in your browser
Execute JavaScript and Python code instantly in your browser — no local setup, no installations, no configuration. Write code, hit Run, and see the output immediately. Perfect for testing AI-generated code before you save it.
>>> # Write or paste code, then hit Run
>>> def fibonacci(n):
... a, b = 0, 1
... for _ in range(n):
... print(a, end=" ")
... a, b = b, a + b
...
>>> fibonacci(10)
0 1 1 2 3 5 8 13 21 34 55
# Runs instantly in your browser via
# WebAssembly — no install, no setup.How it works
Write or paste code
Use the built-in editor or paste code from anywhere — JavaScript or Python.
Hit Run
Execute instantly in your browser. Python runs via Pyodide (WebAssembly), JavaScript runs natively.
See output immediately
View results, errors, and console output in real time — no terminal needed.
Debug and save
If something breaks, ask AI to fix it. Then save the working version to your library.
Benefits
No setup required
Run Python and JavaScript directly in your browser — no installations, no config.
Instant feedback
See output, errors, and console logs in real time without switching to a terminal.
Test AI code
Run generated code before saving it to make sure it works.
Safe execution
JavaScript runs in a sandboxed Web Worker, isolated from your session and data.