Google Chrome Developer Tools The Google Chrome Developer Tools provide an integrated environment for debugging, optimizing, and understanding a web application, or website, running in Google Chrome.... Free Open Source Mac OS X Windows Linux Chrome HTTPS Support Add a feature 134 Like
Firefox Developer Tools Examine, edit, and debug HTML, CSS, and JavaScript on the desktop and on mobile. Free Open Source Mac OS X Windows Linux Firefox Development API Based on Firefox Add a feature 22 Like
Zed Attack Proxy The Zed Attack Proxy (ZAP) is an easy to use integrated penetration testing tool for finding vulnerabilities in web applications. It is designed to be used by people... Free Open Source Mac OS X Windows Linux Penetration Testing Add a feature 17 Like
Live HTTP Headers The goal of this project is to adds information about the HTTP headers in three ways: First by adding a 'Headers' tab in 'View Page Info' of a web... Free Mac OS X Windows Linux Firefox Firefox extension Add a feature 5 Like
HttpRequester A tool for easily making HTTP requests (GET/PUT/POST/DELETE), viewing the responses, and keeping a history of transactions. Free Open Source Mac OS X Windows Linux Firefox Firefox extension REST API Add a feature 5 Like
HttpFox HttpFox monitors and analyzes all incoming and outgoing HTTP traffic between the browser and the web servers. It aims to bring the functionality known from tools like... Free Mac OS X Windows Linux Waterfox Pale Moon Customer Analytics Firefox extension Legacy Firefox Addon Pale Moon Extension ... Static analysis Web log analysis Add a feature 9 Like Discontinued The project is no longer developed. Last version, 0.8.14.1, released in May 2014, is not compatible with Firefox, but the extension still works on XUL-based Firefox forks like https://alternativeto.net/software/waterfox/ and https://alternativeto.net/software/palemoon/
Graphical HTTP Client HTTP Client is a Mac OS X Leopard developer tool for debugging HTTP services by graphically creating and inspecting complex HTTP messages. Commercial Mac OS X No features added Add a feature 4 Like
Live HTTP Headers (Chrome) Monitor all HTTP/HTTPs traffic from your browser. Live HTTP Headers logs all HTTP traffic between Google Chrome and the Internet. This extension can be helpful if... Free Mac OS X Windows Linux Chrome HTTPS Support Add a feature 5 Like Warning Suspected of distribute adwares, even after removing the extension
GraphicalHttpClient Graphical Http Client is a utility to help you test and interact with REST-based web services. It is lightweight, easy-to-use, and has the following features: - Set... Commercial $ $ $ Mac OS X No features added Add a feature 1 Like
Slowy Slowy is an OSX app which simulates custom connection's conditions and limits the network traffic. It is created for web developers that work on a local server, to... Freemium Mac OS X No features added Add a feature 1 Like
Andiparos Andiparos is a fork of the famous Paros Proxy. It is an open source web application security assessment tool that gives penetration testers the ability to spider... Free Open Source Mac OS X Windows Linux No features added Add a feature 4 Like Discontinued No longer developed, as of 2010: https://code.google.com/archive/p/andiparos/source/default/commits
RESTed RESTed allows developers to quickly format and make HTTP requests and view the response. RESTed supports both basic HTTP authentication and OAuth. RESTed shows... Commercial $ $ $ Mac OS X No features added Add a feature 1 Like
Omnibug Omnibug is a plugin for the Google Chrome and Mozilla Firefox browsers to ease developing and debugging web metrics implementations. Each outgoing request (sent by the... Free Open Source Mac OS X Windows Linux Chrome Firefox Google Chrome extension Firefox extension Google Analytics Integration Add a feature 0 Like
Rest Client Rest Client feature rich rest client for developers to debug and test their RESTful web services. It can be used to request a URL using the following HTTP methods: GET... Commercial Mac OS X REST API Add a feature 0 Like
HTTP Headers HTTP Headers allows you to quickly see the HTTP header information for the current URL. Free Mac OS X Windows Linux Google Chrome extension Add a feature 4 Like Warning Suspected of distribute adwares, even after removing the extension
