Web debugging proxy tools are used by developers and testers alike in areas such as capturing HTTP traffic between computer and the Internet, and especially in performance testing to find where site performance bottlenecks are occurring.
Many developers and testers across the Interwebs have praised Fiddler’s free and “open” nature, specifically the ability to add custom rules to modify requests and responses on the fly. However, based on the scarce data we have for these two tools in our Tool Reviews, it’s pretty hard to draw any firm conclusions from our own tester base on which is best in a head-to-head matchup. So we must ask the question: Who wins the web debugging proxy tool showdown: Fiddler or Charles?
Be sure to sound off in the comments below, and/or leave a review of these tools over at Tool Reviews to spread the good (or bad) word to your fellow testers.