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The JSON/JS-Beautifier extension is used to modify JSON and JavaScript output to make the body parameters human-readable.

Steps to Install

  1. Download the Jython jar file from
  2. Start Burp Suite.
  3. Go to the Extender tab.
  4. Navigate to the Options tab.
  5. Install the packages jsbeautifier and six using pip install (Jython pip install).
  6. In the Python environment, click on the select file option and upload the downloaded jar file.
  7. Specify the folder (for Windows - C:\jython2.7\lib\site-packages or for Linux /opt/jython/Lib/site-packages), then select the folder option.
  8. Download the JSBeautifier file from
  9. Go to the Extension Tab, click on Add option, and select the file.