Plagiarism: Turnitin plagiarism plugin

Maintained by Picture of John McGettrick John McGettrick, Picture of Dan Marsden Dan Marsden, Picture of Paul Dawson Paul Dawson, Picture of Alex McLarty Alex McLarty, Picture of David Winn David Winn, Picture of Caroline Westgarth Caroline Westgarth, Picture of David Hatton David Hatton
Turnitin is a commercial plagiarism detection system which requires a paid subscription to use - This Plugin integrates with the existing Moodle Assignment module.
1006 sites
10 fans
WARNING: This plugin replaces Dan Marsden's plugin with a new version developed by Turnitin 

The plugin developed by Dan Marsden has been deprecated for the version now available here.
This plugin shares code with the new mod_turnitintool2 plugin which must be installed at the same time.

The new version has a number of major benefits compared with Dan's including:
  • Fully supported by Turnitin for all issues that occur.
  • Uses a new improved API to connect to Turnitin.
  • Better support for the rest of Turnitin's product range (Grademark, Writecycle etc)
  • Works with the new Moodle block developed by Turnitin

Dan Marsden's original plugin
Dan Marsden's plugin is supported for all versions up to Moodle 2.7 to allow people time to migrate to the new version but will not be supported past Moodle 2.7 - Dan's plugin is still available from his github account here: along with documentation here:


Screenshot #0
Screenshot #1


Picture of John McGettrick
John McGettrick (Lead maintainer)
Picture of Dan Marsden
Dan Marsden: Previous plugin maintainer
Picture of Caroline Westgarth
Caroline Westgarth
Please login to view contributors details and/or to contact them

Comments RSS

Show comments
  • Picture of Mathieu Pelletier
    Tue, 23 Feb 2016, 3:02 PM
    Is anyone else getting errors with the latest version 201611103? I am seeing this in php_errors.log:
    PHP Parse error: syntax error, unexpected '=', expecting ')' in /storage/www/moodle/plagiarism/turnitin/lib.php on line 2387

    I had to disable the conditional checking for the empty value and revert to the method used in 201611102. Am I missing something in my configuration perhaps?
  • Picture of John McGettrick
    Tue, 23 Feb 2016, 5:16 PM
    Hi @mkpelletier, as per our conversation on github that seems to only occur with PHP versions < 5.5.

    We'll replace the offending line with:

    $textcontent = $file->get_content();
    if (empty($textcontent)) {

    And release a patch for that today.
  • Picture of Maria Pérez
    Wed, 9 Mar 2016, 7:38 PM
    Maybe I have found a mistake on version 3.0, component "plagiarism_turnitin", string "pp_digital_receipt_message". There you can read "from from", twice. Is that correct?
    Thank you,
  • Picture of David Winn
    Wed, 9 Mar 2016, 7:46 PM
    Hi Maria,
    You are correct, thanks for pointing it out. Small typing error on our part. we'll get it changed.
  • RabNawaz
    Thu, 10 Mar 2016, 1:59 PM
    I am installing the plagiarism_turnitin on 2.6+ moodle, it gives an error the following error. Please help
    "Oops! It did it again
    Moodle deployment utility had a trouble with your request. See the docs page and the debugging information for more details.
    exception 'checksum_exception' with message 'MD5 checksum failed' in E:\wamp\www\mdeploy.php:770
    Stack trace:
    #0 E:\wamp\www\mdeploy.php(1535): worker->execute()
    #1 {main}"
  • Picture of John McGettrick
    Fri, 11 Mar 2016, 8:27 PM
    Hi RabNawaz, I've just tried this out on a local install and it worked fine. Is there more information in your server logs or just the checksum exception?
  • Picture of Muhammad Nur Aziz
    Fri, 18 Mar 2016, 11:57 PM
    Hi John.. I already installed turnitin and mod plugin on my moodle, but i've got problems when i try to enter the password on turnitin shared key. I already put the right password that the administrator gave. Could you please help me?
  • Jim Judges
    Fri, 20 May 2016, 8:37 PM
    A suggestion for future development is "smart filtering".
    Is it possible that the Turnitin options are only available if appropriate submission types are used (i.e. File submissions) . This would prevent any confusion over expectation that Turnitin could check other submission types (e.g. text, video, mahara)
  • Picture of Oswaldo Rojas
    Thu, 16 Jun 2016, 5:40 PM

    Do you have an estimate about when this plugin will be available to Moodle 3.1?


    Oswaldo Rojas
  • Picture of Corey Gheesling
    Sat, 10 Sep 2016, 2:58 AM
    We are having issues with Moodle 3.1 timing out student attempts to access their feedback from the oline grader tool. Any thoughts as to what is causing this error? Teachers can still grade and access their feedback, but students cannot. It is not a permission issue.
  • Picture of John McGettrick
    Mon, 12 Sep 2016, 8:35 PM
    Hi Corey, what plugin version are you using? Is it happening consistently?
  • Picture of Corey Gheesling
    Mon, 12 Sep 2016, 9:27 PM
    Hey John it's build Turnitin Assignment 2.6+ 2016030101 . It happens continuously for all students, but not the teachers.
  • Picture of John McGettrick
    Tue, 13 Sep 2016, 6:30 PM
    Hey Corey, it is strange that this is affecting only students. Can you contact product support and we'll get some details off you?
  • Picture of Iñigo Zendegi Urzelai
    Fri, 30 Sep 2016, 5:50 PM

    We're using this plugin (2.6+ 2016091401) on Moodle 3.1.2 and it throws this message to the admin:

    The following plugins in your system are using Events 1 API deprecated handlers: 'plagiarism_turnitin'. Please, update them to use Events 2 API. See

    I don't know if it make some trouble, but just in case.
  • Picture of John McGettrick
    Fri, 30 Sep 2016, 5:55 PM
    Hi Iñigo, it shouldn't affect the functionality but you will end up with a lot of notices like that if the debugging level is high. We are looking to rectify this for compatibility with Moodle 3.2.
1 2 3 4 5 6 7 8 9
Please login to post comments