Could anybody show me how to install fiddler on Ubuntu? I need to use it for web development.

  • What is "fiddler"? It's not a Ubuntu package. Is there a .deb available? Does the "fiddler" website mention Linux? – waltinator Jun 5 '17 at 16:22
  • fiddler is a web debugging tool and it is not a ubuntu package. As far as I know, fiddler is indeed supported by linux. – dullboy Jun 5 '17 at 16:40
  • Is it the telerik version? – George Udosen Jun 5 '17 at 17:03

First things first:

  1. Install mono:

    sudo apt install mono-complete
  2. Download fiddler for Linux by clicking here and extract it.

  3. Then with mono installed run it with from the extracted directory:

    mono Fiddler.exe
  4. Or run with mono /path/to/extracted/fiddler/Fiddler.exe

enter image description here




  • Does not work. Getting this error and Fiddler is crashing. [1] 8102 abort (core dumped) mono /home/curtis/Desktop/vjbl/fiddler-linux/Fiddler.exe Unable to attach: program terminated with signal SIGABRT, Aborted. No threads. – kwoxer Jul 10 at 11:40

To install Fiddler on Ubuntu, use this link Fiddler Everywhere. You will be directed to download the AppImage file. Once the AppImage file is downloaded, the only thing you require is to make it executable by changing its permissions (Right-click on the file and selected properties. On the permissions tab, select Allow executing the file as program). To run the application, right-click on the file and select Run.


Fiddler develop for Mono framework.

  1. Add the Mono repository to your system http://www.mono-project.com/download/#download-lin
  2. Download Fiddler for linux https://www.telerik.com/download/fiddler
  3. Extract archive with Fiddler and run Fiddler.exe (press right button and run with Mono)

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.