How to add an extra column to Fiddler

Question

Love this debugging tool. It would be great if I could see how long each call takes as a column rather than having to click each individual item and look at its statistics.

I didn't see any options to add this column. Is there a way to do it via a config file or a script?

Thanks

Answer 1

I tried the other answers but none of them give me the actual overall elapsed time, as TTLB is not always what we want. The Fiddler help page @Eric Lawrence mentioned has the better answer. Hit Ctrl+R for the script editor, then add this code to the Handlers class:

public static BindUIColumn("Time Taken")
       function CalcTimingCol(oS: Session){
         var sResult = String.Empty;
         if ((oS.Timers.ServerDoneResponse > oS.Timers.ClientDoneRequest))
         {
           sResult = (oS.Timers.ServerDoneResponse - oS.Timers.ClientDoneRequest).ToString();
         }
         return sResult;
       }

This also has the added benefit of sorting correctly.

Answer 2

UPDATE October 2012 this appears to be built in now.

Click Rules -> Performance -> Show Time-To-Last-Byte

The next request will show the ttlb in the custom column.

UPDATE May 2013 - I upgraded to Fiddler 4.4.4.4 Beta and found that this option is no longer available.