How Do I Capture the HTTP Log on a Mac Using Fiddler?

How do I capture the HTTP log on a Mac using Fiddler?

How do I set up Fiddler to capture logs on a Mac?

To capture HTTP logs on Mac using Fiddler:

  1. Download Fiddler for Mac at
  2. Drag the Progress Telerik Fiddler DMG file to the Applications folder.
  3. Open the Progress Telerik Fiddler app from the Applications folder, then authenticate either using your Touch ID, or your password.
  • Note: Authentication is required as Fiddler is installed as a proxy server on your Mac, and it makes changes to the proxy settings. The changes to the proxy settings revert once you close the Fiddle application.
  1. Go to Settings > HTTPS, then enable Decrypt HTTPS traffic.
  2. Go to your desktop, then click on FiddlerRootCertificate.crt.
  3. In Keychain Access, click on DO_NOT_TRUST_FiddlerRoot certificate to open the Trust dialog
  4. Choose Always Trust in the When using this certiciate drop-down menu.
  5. Restart the Fiddler app and ensure there is a Capturing... button at the bottom left of the window.
  6. Replicate the issue, then go to File > Save archive > All sessions to save the log file.

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