PlagScan Plagiarism Checker

Plagiarism ::: plagiarism_plagscan
Maintained by Ruben Olmedo, Markus Goldbach, Jesus P.L.
Plagiarism checker for discerning originality from copy and paste. PlagScan detects plagiarism in assignments from web pages as well as other students' work.
Latest release:
228 sites
22 fans
Current versions available: 2

PlagScan Plagiarism Checker

PlagScan is a web-based service software to investigate the authenticity of content. Submitted documents will be checked against web sources and internal submissions within the institution.

The software employs a highly advanced two-step algorithm, which is based on the latest research in computer linguistics and constantly updated. The rigorous copyright and data security regulations protect all data from third parties and enables the users to regulate their own settings according to their needs.

PlagScan is subscription-based and can be tested in a free trial on Organizations and institutions can contact the support team for a quote.


Screenshot #0
Screenshot #1
Screenshot #2


Ruben Olmedo (Lead maintainer): Developer
Press Communication: Infomation
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  • David Mudrák
    Wed, Jul 9, 2014, 9:49 PM
    Thanks for sharing this plugin with the Moodle community. Some formal issues were detected and reported by our automated plugin checker tool. Please review all the plugin checker results and fix the issues mentioned, if possible. These changes are typically pretty easy to make but if you have any questions just let us know.

    Please provide the plugin description into the text fields in the form, instead of providing a link to an external PDF file.
  • David Mudrák
    Fri, Jul 11, 2014, 5:59 PM
    Thanks. Can you please edit the upload version details and select the supported Moodle versions? Without that, we are unable to review the plugin and integrate this fully into our infrastructure.
  • David Mudrák
    Wed, Jul 23, 2014, 6:49 PM
    Hi guys. Thanks for sharing this plugin with the Moodle community. I believe the file php_errors.log is included in the package by mistake. You may consider to get rid of it. I am going to approve the plugin now. You are cleared to land, welcome to the Plugins directory!
  • Thanuci Silva
    Wed, Sep 16, 2015, 11:41 PM
    Hi guys.
    Is this plugin able to check plagiarisms between two documents written in Portuguese?
  • Cati Mayer
    Thu, Aug 3, 2017, 5:07 PM
    Hello Rose,

    Thanks for your interest of PlagScan. Our goal is to improve academic intergrity and promote originality. You test our software you can click on the following link: You will recieve free credit and test directly the software on our browser.
    We will be pleased if you would write a review of our software. If you need more information, or have questions, please feel free to contact us. You can reach us on the following E-Mail:
  • Ruben Olmedo
    Mon, Jan 7, 2019, 9:56 PM
    We do what we can to keep customers happy!
    Please check out the new repository on github.
    The new stable version will be soon release with the new API implementation that brings new funtionalities.

    Thanks you the comments!
  • Oleksandr Szpinkowski
    Thu, Apr 9, 2020, 8:02 PM
    What is the cost of the plugin for educational organizations?
    Can a plugin work only for internal anti-plagiarism?
  • Oleksandr Szpinkowski
    Thu, Apr 9, 2020, 8:04 PM
    Is it possible to check internal files muddle? What formats work?
  • Jacqueline Gardner
    Fri, Nov 20, 2020, 2:32 PM
    Hi there David Mudrák,
    Do you plan to release the next version PlagScan Plagiarism Checker to the Plugins directory !
  • Richard Richard
    Fri, Feb 5, 2021, 11:56 AM
    When we made plagiarism checker, we try to make it as simple as possible and help the community to get the content, which is unique and original. If for instance, you think that, the content has been used maliciously and should be reported to the authorities. To use this plagiarism checker, please copy and paste your content in the box below, and then click on the big red button that says “Check Plagiarism!” then sit back and watch as your article is scanned for duplicated content. Recaptcha requires verification.
  • Helen Foster
    Fri, Oct 29, 2021, 7:23 PM
    Just noting a bug if you install this plugin on a 3.11 site: When editing an activity or resource, the 'Save and display' button takes you to the course page rather than displaying the activity or resource.

    The bug is reported as

    Please see MDL-72401 for more details.
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