HTTP Toolkit is described as 'Beautiful, cross-platform & open-source HTTP(S) debugging proxy, analyzer & client, with built-in support for modern tools and automatic interception for clients from Docker to Android to iOS' and is a popular HTTP Client in the development category. There are more than 50 alternatives to HTTP Toolkit for a variety of platforms, including Mac, Windows, Linux, Web-based and Flathub apps. The best HTTP Toolkit alternative is Insomnia REST Client, which is both free and Open Source. Other great apps like HTTP Toolkit are Fiddler, mitmproxy, Hoppscotch and Burp Suite.
A powerful REST API Client with cookie management, environment variables, code generation, and authentication for Mac, Window, and Linux.
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.
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...
Hoppscotch is an open-source API development ecosystem. It helps you create your requests faster, saving you precious time on your development.
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...
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).
Proxyman is a high-performance macOS app, which enables developers to view HTTP/HTTPS requests from apps and domains. Available on macOS, iOS, Windows & Linux.
The Zed Attack Proxy (ZAP) is an easy to use integrated penetration testing tool for finding vulnerabilities in web applications.
RapidAPI for Mac (formerly Paw) is a full-featured HTTP client that lets you test and describe the APIs you build or consume. It has a beautiful native macOS interface to compose requests, inspect server responses, generate client code and export API definitions.
API testing tool. Which allows web developers to create and test custom HTTP requests.
Requestly is a lightweight proxy available as a browser extension & desktop app to intercept & modify network requests. Using Requestly you can Modify Headers, Redirect Url, Mock API response, Delay/Throttle requests, etc.
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Insomnia not is a request interceptor