Surge for Mac - Advanced Web Debugging Proxy for Mac & iOS
Charles - HTTP proxy / HTTP monitor / Reverse Proxy
LightProxy - LightProxy is a cross-platform designed to perform a debugging proxy and provides full automation with certificates and system proxy settings.
Qustodio - Free parental control software. Monitor and track your child's online activity. Block dangerous sites and protect kids from online bullying.
James - James is a HTTP Proxy and Monitor that enables developers to view and intercept requests made from...
HTTP Headers - HTTP Headers allows you to quickly see the HTTP header information for the current URL.