Download ControlFreak

ControlFreak is freeware - it's free for anyone to use for an unlimited time.


The ControlFreak download is free from adware, spyware, PUP, or any other kind of unwanted extras.


Save the download, unzip, and install by running setup.exe (a short installation instruction is included.) ControlFreak is an Excel template so you will need to have Excel 2007, 2010, 2013 or 2016 (32 or 64 bit) already installed on your Windows computer.

Changes in ControlFreak 1.5 (13-Dec-2015):

  • Added calculations of stability indices
  • Added support for Excel 2016
  • Updated the help file, added a help button to the Excel Ribbon
  • Improved manual re-scaling of charts
  • Fixed language bug affecting computers with non-english settings