Apps similar to PolarProxy include Fiddler, which has a free version. Other options are mitmproxy, Burp Suite, Charles and InterceptSuite . You can choose from more than 10 HTTP(S) Debuggers like PolarProxy for Mac, Windows, Linux, iPhone and iPad.
Web Debugging Proxy that logs all HTTP(S) traffic for comprehensive analysis. It allows manipulation of traffic, supports scripting, and extends with .NET. Debugs virtually any application, implementing man-in-the-middle interception with self-signed certificates. Freeware, ideal for developers.
United States
mitmproxy is an SSL-capable man-in-the-middle proxy for HTTP. It provides a console interface that allows traffic flows to be inspected and edited on the fly. It also features mitmdump, a commandline tool that provides a tcpdump-like interface for saving, viewing and...
Burp Suite is an integrated platform for performing security testing of web applications. Its various tools work seamlessly together to support the entire testing process, from initial mapping and analysis of an application's attack surface, through to finding and exploiting...
United Kingdom
Charles is an HTTP proxy / HTTP monitor / Reverse Proxy that enables a developer to view all of the HTTP and SSL / HTTPS traffic between their machine and the Internet. This includes requests, responses and the HTTP headers (which contain the cookies and caching information).
New Zealand
InterceptSuite is a cross-platform (Windows, macOS, Linux) man-in-the-middle proxy for intercepting, inspecting, and modifying non-HTTP network traffic in real time. Unlike Burp Suite, Fiddler, or mitmproxy - which focus on HTTP/HTTPS - InterceptSuite works at the transport...
India
Monitor, intercept and debug HTTP/HTTPS and WebSocket traffic on macOS, iOS, Windows, and Linux. Includes advanced features such as Breakpoint, Map Local/Remote, scripting, filtering, reverse proxy, DNS spoofing, and automation for backend development.
United States
Open-source native macOS HTTP debugging proxy — intercept HTTPS, inspect APIs, mock responses, debug WebSocket & GraphQL. Community-driven. For developers, by developers.
Easy, intuitive yet powerful HTTP(S) debugging proxy for macOS, Windows and Linux — capture, inspect, mock, break and replay traffic.
Germany
EU
Free native HTTPS debugging proxy for Mac (Linux beta) with a built-in API client and an MCP server for AI coding assistants.
India
Modern HTTP debugging tool, Debug, mock, and rewrite HTTP/HTTPS traffic with composable rules.
United States
