CCNA, CCNP, MCSA, CCNA Final Exam, All Answer Test Module With 100/100

I'd like to use JSLint but am wary of tools that have access to my unfiltered source-code. Is there an offline version or is there another similar tool that does " lint error checking" for JavaScript offline? Edit: One with a GUI / shows you a styled list of errors, instead of command line? Source: Tips4all