I have added the Step-by-step debugger via the JMeter plugins manager but I don't have any idea how to start using it. Any suggestions on how I can start using it for debugging purposes?

  • Not sure why this is too broad? Seems there is only a single way to use the debugger in blazemeter tests, not? Jul 10, 2019 at 11:11

2 Answers 2


Given successful installation you should be able to see Step-by-Step Debugger entry under "Run" section of JMeter's main menu:

JMeter Step By Step Debugger

On start you will see debugger window where you will be able to inspect JMeter Variables, JMeter Properties, evaluate expressions and see JMeter log file

JMeter Step By Step debugger

  • Make sure you have latest JMeter version, you can always grab one on JMeter Downloads page
  • Make sure you have latest Step-by-Step Debugger plugin version, JMeter Plugins Manager can be used for installing plugins and keeping them up-to-date

Refer to A Step-by-Step Debugger for JMeter - It’s Not a Dream Anymore for comprehensive usage instructions.


You can move to debugging your script in following way:

Step 1 : Create the script as per your business requirement. Here i have created one sample test plan for the reference where i have setup all required things as mentioned in snap :

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Step 2: If debug plugin has successfully installed then it will appear in the strip right below the menu bar, click on it

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It will open new debug window where you will see the debug options as shown in the below snap :

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Step 3 : Now select the Test Plan and click on the Start button, It will start debugging your script

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Test plan component will display highlighted which is currently being executing , to move the next step click on Step Over Button, Here you can analyze your script the flow and variables, logs and so many things as options are there.


Note: Jmeter 3.0 and 3.1 supports blazemeter step by step debugger plugin version 3.0. blazemeter step by step debugger plugin version 4.0 supported by Jmeter 3.2

  • Thanks! In my case nothing happens on clicking the Blazemeter debug icon, the one you mentioned in step 2. Aug 11, 2017 at 11:55
  • @Rohan Kalia, I'm using jmeter 3.1 and BlazeMeter Step-by-step Debugger 0.3 it wont work with plugin version 0.4 so make sure you have installed correct version, If accediently you have installed wron version then go to plugin manager --> uncheck debugger plugin present in installed plugin tab--> click apply change and restart jmeter button and again install the correct version (select the version from the dropdown comes while click the desired plugin)
    – NarendraR
    Aug 11, 2017 at 12:21
  • @RohanKalia, If answer is helpful for you then don't forget to accept it
    – NarendraR
    Oct 5, 2017 at 10:44

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