Charles Web Proxy? Not free, but I've been using it very reliably on all platforms for at least 3 years now. :) A nicely polished bit of software. Free 30 min "

Charles Web Proxy? Not free, but I've been using it very reliably on all platforms for at least 3 years now. :) A nicely polished bit of software. Free 30 min "trial mode" and no-cost upgrades, if it helps. Otherwise I've also used mitmproxy, or for some things, the Net panel of Chrome Dev Tools.