The University of Iowa

Respondus Lockdown Browser

The Respondus LockDown Browser is a custom browser that locks down the testing environment within Canvas. 

How LockDown Browser Works:

  • Assessments are displayed full-screen and cannot be minimized
  • Browser menu and toolbar options are removed, except for Back, Forward, Refresh and Stop
  • Prevents access to other applications including messaging, screen-sharing, virtual machines, and remote desktops
  • Printing and screen capture functions are disabled
  • Copying and pasting anything to or from an assessment is prevented
  • Right-click menu options, function keys, keyboard shortcuts and task switching are disabled
  • Assessments that are set up for use with LockDown Browser cannot be accessed with other browsers


Respondus LockDown Browser Application

Click the links below to read more detailed information.


    Information and detailed instructions for students on how to install the LockDown Browser on their personal computers can be found here.

    Students can download the LockDown Browser here.

    The Respondus LockDown Browser can be installed on personally owned computers and is currently installed on all campus ITC computers.


    System Requirements:

    The Respondus LockDown Browser can be installed on computers with the Windows operating system, Macs with OS 10.15 to 10.12, OS X 10.11, or OSX 10.10, and iPads.

    The LockDown Browser is currently not supported on Chrome Books. More detailed information can be found here.


    Status Error in macOS devices

    If you get an error that says CERT_STATUS_AUTHORITY_INVALID on your macOS device, you need to upgrade your operating system.

    Visit for steps for upgrading to macOS 10.12. 


    For general information on updating Windows, visit 

    For general information on updating Mac, visit 


    Licensing Information

    • Available for use by Students, Faculty and Staff of the University.


      • Enable in ICON through the navigation tab in your course settings menu.

      Support for Respondus Lockdown Browser