How to run Python online without installing anything

Open the Python runtime

Go to the CodeLab compiler and select Python. The pinned Python 3.13 runtime loads with an empty editor — nothing to download, and it works on Chromebooks, tablets and lab machines where you cannot install software.

If you arrived from the languages hub, the per-language Python guide has a starter program you can copy.

Paste code and press Run

Type or paste your script into the editor, then use the Run button inside the editor. Output, tracebacks and the exit code appear in the result pane below the code.

Tracebacks reference your exact lines, so debugging works the same way it does locally — read the last line first, then scroll up for the call chain.

Feed input with stdin

Programs that call input() need piped stdin. Open the stdin panel inside the editor, type each input on its own line, then press Run. Match the order your program reads values.

A common beginner mistake is pressing Run with an empty stdin panel and watching input() raise EOFError. Fill stdin first, then run.

FAQ