I want advanced tools for debugging minified code

Submitted by Maxim Tsoy

We are developing a content-rewriting proxy at my company, so we are re-generating HTML, CSS, and JavaScript on the fly. When debugging issues, I often have to trace through someone else's JS code, and most of the time it is minified. In this use case sourcemaps are mostly useless, because 1) most projects don't use them in production; 2) re-generated code cannot use them anyways.

At the moment, Chrome Dev Tools work the best for interactive debugging. Firefox is not as good in beautifying, and is especially quirky when tracing eval-ed JavaScript. However, even Chrome provides only basic tools for analysis. It would really help if we could:

This kind of advanced tool would be super useful for security researchers and for library authors who have to deal with minified code.

JavaScript DevTools