mitmproxy is an opensource, interactive SSL/TLS-capable intercepting HTTP proxy, with a console interface fit for HTTP/1, HTTP/2, and WebSockets. It's the ideal tool for penetration testers and software developers, able to debug, test, and make privacy measurements. It can intercept, inspect, modify and replay web traffic, and can even prettify and decode a variety of message types.
Web debugging proxy based on Chrome DevTools network panel
Betwixt will help you analyze web traffic outside the browser using familiar Chrome DevTools interface. Download the latest release for your operating system, build your own bundle or run Betwixt from the source code. In order to capture traffic, you'll have to direct it to the proxy created by Betwixt in the background.