[_nalply]

I skimmed the article and tried to find out whether StageXL needs a plugin but it was not conclusive for me. Does StageXL need a plugin?

[markdog12]

No, it doesn't. But there are some that add functionality. They're listed in the article.

[bp74]

To be clear, those added functionality is not a plugin in the sense of that you need to install it. They are just libraries that are compiled to JavaScript. In the end you just need a browser that supports HTML5.