Alternatives to Firebug for all platforms with Free License

Platforms

Desktop

Browsers

Show 5 less popular platforms
  • Firefox Developer Tools icon

    Firefox Developer Tools

    Examine, edit, and debug HTML, CSS, and JavaScript on the desktop and on mobile.

    Open Source Mac Windows Linux Firefox

    • Directly integrated in Firefox, so it is faster. And guaranteed to stay updated as Firefox evolves. Guest • Jan 2017 Disagree   Agree
    • Almost the same functionality as Firebug, with a lot of improvements. yphastosMar 2017 Disagree   Agree
  • 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 supports debugging JavaScript...

    Free Mac Windows Linux

  • 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. This extension can be helpful if...

    Free Mac Windows Linux Chrome

    • Warning Suspected of distribute adwares, even after removing the extension
    • Firebug is specifically DOM based and allows manipulation of it (including dynamic style changes), whereas LIVE HTTP Headers captures traffic but does not offer the ability to manipulate the DOM. This application has more in common with Terlerik's Fiddler application than it does with FireBug. Guest • Feb 2017 Disagree   Agree
  • DOMScope icon

    DOMScope

    DOMScope is an online web inspector and debugger for mobile web apps. Like Chrome's DevTools, it allows developers to navigate through the HTML, list applied CSS...

  • Site Relic icon

    Site Relic

    Site Relic is a FREE toolbox where you can test your website for performance & security in seconds without user registration.

    Freemium Web

  • StatusCake Tools icon

    StatusCake Tools

    StatusCake Tools allows you to check the speed and load time of your website. Simply enter the website URL and check one of the locations from around the world you want...

    Free Mac Windows Web

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  • Flow (type) icon

    Flow (type)

    Flow uses type inference to find bugs even without type annotations. It precisely tracks the types of variables as they flow through your program. Flow is designed...

    Open Source Web Self-Hosted

  • Slowy icon

    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