HttpFox has been discontinued. Similar apps include Fiddler, which has a free version. Other options are Google Chrome Developer Tools, Charles, Proxyman and Firefox Developer Tools. You can choose from more than 10 Web Debuggers like HttpFox for Windows, Mac, 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
The Google Chrome Developer Tools provide an integrated environment for debugging, optimizing, and understanding a web application, or website, running in Google Chrome. The developer tools are developed partly through the WebKit open source project, where the tools are called...
United States
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
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
Examine, edit, and debug HTML, CSS, and JavaScript on the desktop and on mobile.
United States
The Web Developer extension adds various web developer tools to a browser. The extension is available for Chrome, Edge, Firefox, and Opera, and will run on any platform that these browsers support including Windows, macOS and Linux.
United States
Open-source native macOS HTTP debugging proxy — intercept HTTPS, inspect APIs, mock responses, debug WebSocket & GraphQL. Community-driven. For developers, by developers.
HTTP Debugger captures and decrypts HTTP/HTTPS from any Windows app without proxy setup — HTTP/2, WebSocket, SSE, gRPC and localhost included. Edit and replay requests, modify traffic on the fly, and let an AI assistant read the session over the built-in MCP server.
HTTP Headers allows you to quickly see the HTTP header information for the current URL.
The goal of this project is to adds information about the HTTP headers in three ways:
Canada
HttpWatch is an HTTP viewer and debugger that integrates with IE and Firefox to provide seamless HTTP and HTTPS monitoring without leaving the browser window. It's available as a free edition and a PRO version that cost money and has additional features.
United Kingdom
Working quietly on the Menubar, Surge is a high-performance HTTP/SOCKS5 proxy server. It is capable of intercepting and logging the summary of HTTP traffic, and meanwhile transmitting the traffic to other proxy servers according to the flexible rule system.
