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From: JJ <jaejunks@nah.meh>
Newsgroups: comp.lang.javascript
Subject: Reversible JS compressor?
Date: Fri, 25 Jan 2013 17:59:27 +0000 (UTC)
Organization: A noiseless patient Spider
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Of all JS compressors like packers, uglifiers and minifiers, which one can 
produce reversible result?

i.e.: doesn't obfuscate nor rename any identifiers such as 
variable/function names, so I could revert the compression back to (nearly) 
original formatting using a JS beautifier.

Also, what's the difference between uglyfier and minifier?