Javascript minimizer and profiler

Hi,

I'm interested in two applications for javascript. A profiler and a minimizer. I found several, but I am hoping to hear with which applications some of you guys have a good experience. I prefer open source projects.

The minimizer should make the javascript small. Not just removing white-space and comments, but also make object names very small. This will probably obfuscate things, but the goal does not have to be obfuscation.

The profiler should show all functions, how much time was spent inside it (percentage and absolute time), with and without calls to other methods, etc. Just like another "real language" profiler.

Any suggestions?

Robert.
.

Relevant Pages