Alternatives to Firebug for all platforms with any license

Platforms

Desktop

Web / Online

Browsers

Indie / Classic

  • Google Chrome Developer Tools icon

    Google Chrome Developer Tools

    The Google Chrome Developer Tools provide an integrated environment for debugging, optimizing, and understanding a web application, or...

    Open Source Mac Windows Linux Chrome

  • Opera Dragonfly icon

    Opera Dragonfly

    Opera Dragonfly is a feature of Opera web browser: it is a full-featured development and debugging tool integrated into Opera. It...

    Free Mac Windows Linux

  • Burp Proxy icon

    Burp Proxy

    Burp Proxy is an interactive HTTP/S proxy server for attacking and testing web applications. It operates as a man-in-the-middle...

    Freemium Mac Windows Linux

  • HttpFox icon

    HttpFox

    HttpFox monitors and analyzes all incoming and outgoing HTTP traffic between the browser and the web servers. It aims to bring the...

    Free Mac Windows Linux Firefox

  • HttpWatch icon

    HttpWatch

    HttpWatch is an HTTP viewer and debugger that integrates with IE and Firefox to provide seamless HTTP and HTTPS monitoring without...

    Free Personal Windows Firefox

  • Live HTTP Headers (Chrome) icon

    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. ...

    Free Mac Windows Linux Chrome

  • HTTP Headers icon

    HTTP Headers

    HTTP Headers allows you to quickly see the HTTP header information for the current URL.

    Free Mac Windows Linux

  • Live HTTP Headers icon

    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...

    Free Mac Windows Linux Firefox

  • Javascript Debugger (Venkman) icon

    Javascript Debugger (Venkman)

    Venkman is the code name for Mozilla's JavaScript Debugger. Venkman aims to provide a powerful JavaScript debugging environment...

    Open Source Mac Windows Linux Firefox

  • Graphical HTTP Client icon

    Graphical HTTP Client

    HTTP Client is a Mac OS X Leopard developer tool for debugging HTTP services by graphically creating and inspecting complex HTTP...

    Commercial Mac

  • HTTPScoop icon

    HTTPScoop Discontinued

    HTTP Scoop is a Mac network sniffer that displays requests to websites along with the response, and makes it fairly easy to see...

    Commercial Mac

  • DOMScope icon

    DOMScope

    DOMScope is an online web inspector and debugger for mobile web apps. Like Chrome's DevTools, it allows developers to navigate...

    Free Web / Cloud

  • SplineTech Javascript Debugger icon

    SplineTech Javascript Debugger

    SplineTech JavaScript Debugger is the fastest independent standalone JavaScript Debugger that enables you to debug JavaScript for IE...

    Commercial Windows

  • HTTP Debugger icon

    HTTP Debugger

    HTTP Debugger Pro - A Professional HTTP Sniffer and Analyzer for Developers

    Commercial Windows

  • Slowy icon

    Slowy

    Slowy is an OSX app which simulates custom connection's conditions and limits the network traffic. It is created for web...

    Freemium Mac

  • Rest Client icon

    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...

    Free Mac

  • GraphicalHttpClient icon

    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...

    Commercial Mac

  • RESTed icon

    RESTed

    RESTed allows developers to quickly format and make HTTP requests and view the response. RESTed supports both basic HTTP...

    Commercial Mac

  • Tiny JavaScript Debugger icon

    Tiny JavaScript Debugger

    TinyJSD is a JavaScript debugger for privileged code running Mozilla products like Firefox, Thunderbird, SeaMonkey. It serves to debug...

    Open Source Mac Windows Linux Firefox

  • Uthrottle icon

    Uthrottle

    Uthrottle is a tool which simulates custom connection’s conditions and limits the network traffic to a specified speed on network...

    Commercial Linux