Tools against plagiarism

Ouriginal and NoPlagiat are two tools used at Linköping University to counteract plagiarism among students.

As a student, you must reference your sources when writing your student thesis and other academic texts. By properly referencing, you also avoid plagiarizing. At LiU, the plagiarism detection tool Ouriginal is used for checking texts written by students for possible plagiarism. The Library has created a self-study tutorial, called NoPlagiat, to help students learn how to avoid plagiarizing and respect copyright.


Ouriginal (formerly Urkund) can be used by teachers for checking texts written by students for plagiarism and is often found via the submission module in virtual course rooms in the Lisam learning platform. Teachers at LiU also have the option to send individual texts via Ouriginal.

When a text is sent to Ouriginal, the system will analyze the document for similarities with content from other sources. The analysis is presented in a report that is sent to the teacher that requested the analysis, who then makes the judgement if there are grounds to suspect plagiarism.

More information about Ouriginal is available at Ouriginal's website


NoPlagiat self-study tutorial Show/Hide content

To promote students’ knowledge of copyright and abilities in citing and referencing, Linköping University Library has created a self-study tutorial.

NoPlagiat is a self-study tutorial that LiU teachers can incorporate as part of a course in Lisam, Linköping University's learning platform.

The self-study tutorial consists of five sections:

  • What is plagiarism?
  • Referencing
  • Citing
  • Paraphrasing
  • Copyright

After each section, your knowledge is tested with some questions. It will take approximately 30 minutes to complete the whole tutorial.

If you have any questions about NoPlagiat or plagiarism issues in general, don’t hesitate to contact us at

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