Mozilla details Pyodide, which brings Python to browsers caught my eye.

However, it is not quite stable, according to the article.

Is there a gratis, stable, popular and well supported means of running Python as Web Assembly?

Obviously, without a good IDE, including debugger, it won't be of much use.

  • Not WebAssembly, but Brython is another setup for using Python in the browser.
    – BrenBarn
    May 11, 2019 at 5:41

1 Answer 1


You should not expect any Python runtime in Wbassembly production-grade stable yet. Webassembly came out 2 years ago. Pyodide (supported by Mozilla) is the most well supported Python AFAIK.

BTW, have you actually tried Pyodide? It runs quite well in my computer.


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