How to Remove All Members in the Facebook Group at Once

Step 1:

Go to facebook.com and then navigate your group. In group click on "members list".

Step 2:

Download the script from here: Its a text file.

https://drive.google.com/file/d/0B9bZgEMHyW2RZ3JiY...

Step 3:

Copy the script and paste it in console box. Use Ctrl + Shift + J in chrome to open console box.

Step 4:

Press enter and it will automatically start removing. Close the window to stop.

Please note that this script is very simple and straight forward and in no way interfere with your facebook account. Anyone with programming knowledge can understand it.