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How to Use the MarkUs Demoserver?

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As of June 18, 2009 we have our new home at On this server there is a MarkUs demo app running which is reachable at: This is our official MarkUs demo instance. Feel free to have a look and play with it.

The database is usually populated with some exemplary data. To log in as an instructor (the type of user with greatest privileges), use ‘a’ as username and any non-empty password. If you’d like to see what student users of MarkUs would see, look up a student username in the “Users” tab and log in with any one of those (again using any non-empty password). Getting to see the view what graders/TAs usually see use the username of some configured TA.

Here is an example CSV-file which could be used to import some student users.

Please note, however, that the demoserver will be reset once a day (usually at 2:00 am EDT). Also, since the running version of MarkUs is most probably still in development, things might break. If that happens, please feel free to file a ticket at

If you have questions, concerns or other feedback please feel free to contact us at or drop by on IRC.  We are in #markus on

Thanks and have fun!

Written by Severin

June 18th, 2009 at 12:05 pm

Posted in Uncategorized

7 Responses to 'How to Use the MarkUs Demoserver?'

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  1. Severin… I’m getting a 404 on the sample csv file. Thanks.


    19 Apr 11 at 12:27 pm

  2. Should be fixed now. Thanks, Dan.


    19 Apr 11 at 2:43 pm

  3. The demo is down for 2 days now. It says “Ruby on Rails application could not be started”.

    I’ve tested it, and found it very usefull. I would like that my colleague give it a try too 🙂


    Paul Chavent

    1 Jul 11 at 3:36 am

  4. Yes, we had several issues last few days due to the number of connections.

    Everything should be fine now.

    Benjamin Vialle

    1 Jul 11 at 3:41 am

  5. There is a strong warning in the documentation
    about displaying pdfs in-browser being very time consuming. I’ve tried to test just how time consuming it is.

    I logged in as 10 different students and submitted the same 11 page, 74KB pdf, to an assignment dropbox I created.

    When I tried to collect the submission of the first student I got the message “Image cannot be displayed. If you are trying to view a pdf file its probably too big to display or you have turned off pdf support.”

    Any idea which it was? Was the pdf too large? Or is pdf support turned off on the demo server? Or do I need to turn it on for a particular assignment dropbox?

    Any help would be greatly appreciated.

    Carrie Howells, Instructional Support Coordinator
    Mathematics Faculty Computing Facility
    University of Waterloo
    MC 3054, 519-888-4567 x36272

    Carrie Howells

    26 Jan 12 at 1:55 pm

  6. PDF support is turned off on the demo server. It’s not a beefy enough to support random PDF conversions of users. Sorry.


    26 Jan 12 at 4:20 pm

  7. Hi, the demo gives ‘bad gateway’ error right now. Why idea?


    17 Feb 16 at 8:06 am

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