FiddlerCore
6.2#20 in web debugging proxiesFrom $2,999 a yearAPILinuxmacOSWindows
VisitFiddlerCore suits developers who need programmable traffic inspection and control inside .NET applications. It also fits testing or monitoring workflows involving API replacement, replay, mocking, and simulated network conditions.
Reqable suits professionals working in development, testing, networking, security or web scraping, and others using it under qualified guidance. Mobile users who need rewriting, breakpoints or scripts will need the desktop app for those features.