[xeno42]

I've had a license for Charles Proxy for the last 9 years and it's been a seriously useful tool, not just for introspecting http/https traffic (and recording those sessions to attach to tickets), but for dynamically modifying requests and responses.

couple of examples that come to mind:

* Want to test your production/deployed app against a dev/local api server? Have it redirect traffic to a different host and rewrite any headers required (production vs dev api keys for example) - That includes DNS spoofing and re-mapping host names as required.

* Found a bug on a web site and want to test a fix to the javascript without setting up a whole environment? Copy the javascript file in question to your hdd, modify it as desired and have Charles serve that file up when the browser/app requests the original

I don't have any connection to the author; just been well worth its price for me.