Alternatives to Firebug for all platforms with Open Source License

Platforms

Desktop

Browsers

Show 5 less popular platforms
  • 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 website, running in Google Chrome....

    Open Source Mac Windows Linux Chrome

    No features added Add a feature
  • 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
  • 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

    No features added Add a feature