Fiddler Ideas

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Fiddler for Linux (Mono) allow intercept and capture WebSockets Traffic

I'm running the latest Fiddler's mono version and it would be great to be able to capture WebSockets traffic on this version. I know it is possible on the Windows version.

  • Guest
  • Mar 12 2016
  • Future consideration
  • Attach files
  • Clark Sell commented
    March 16, 2016 14:54

    That's great! We're actually working on a new build for Linux and working through what the roadmap should look like for linux. What version of Linux are you running on?

  • Guest commented
    March 27, 2016 14:54

    Hi Clark,

    I've been running Fiddler on Linux Mint and also on Ubuntu. I've been using Fiddler to do research on AppSec. Actually I wrote a blog post about how to run Fiddler on Linux Mint.


    At the moment, there is an issue but it is more likely to be a Mono problem. Some textbox (if not all) throw an unhandled exception.I will post the stacktrace later so you guys have a reference.


    If you need help testing (early adoptions for Linux) let me know, I will be more than happy to help.

  • Eric Lawrence commented
    April 12, 2016 18:56

    If I recall correctly, the WebSockets tab should work just fine in Mono. What build of Fiddler for Mono are you using?

  • Guest commented
    April 15, 2016 22:06

    I'm using the versions pointed on this link

  • Tsviatko Yovtchev commented
    July 20, 2016 16:46

    Hey Michael, are you still willing to do early adoption testing on Linux?

  • Guest commented
    July 20, 2016 17:36

    Hi there!


    Yes count on me for the early adoption. I  have an environment up and running to give it a test and report issues according ly

  • Guest commented
    July 27, 2016 17:03

    Just a reminder that I'm willing to collaborate doing testing on Linux platforms. Just let me know.