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A free online editor for students. Write and run Python, JavaScript, HTML and Python Turtle graphics instantly — nothing to install.

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Code in your browser

Runs in your browser

No installs, no setup, no accounts. Hit Run and your Python, JavaScript or HTML executes instantly on your own device.

Share with a link

Every project saves into a link. Send your code to a friend or teacher, or paste it into a class — they open it and it just works.

Get AI help

Stuck on an error or a tricky concept? Create a free account and ask a Genie to explain or debug your code, line by line.

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Stuck? Ask a Genie

Create a free account and an AI tutor trained on the UK curriculum can explain your errors, walk through tricky concepts, and help you debug — right alongside your code.

  • Explain what an error means
  • Debug your code step by step
  • Save and sync projects across devices
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Why does my loop only run once?
Your return is inside the loop, so it exits on the first pass. Move it outside the loop and it'll run all four times.

FAQs

FAQ

Yes. Writing and running code in the playground is completely free and needs no sign-up. A free account adds saving across devices and AI help, but you can start coding right now with nothing.

No. Everything runs in your browser. Python runs via WebAssembly, JavaScript and HTML run directly — there is nothing to download or configure.

Python, Python Turtle graphics, JavaScript, and HTML/CSS/JS with a live preview. There is also OCR Exam Reference Language for GCSE Computer Science students.

Your code is kept in your browser automatically, and clicking Share turns the whole project into a link you can bookmark. For permanent saving and syncing across devices, create a free account.

Only if you share the link with them. Nothing is public by default — your work stays in your browser until you choose to share it.

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