Welcome to Moodle CodeRunner

CodeRunner is a free open-source question-type plug-in for Moodle that can run program code submitted by students in answer to a wide range of programming questions in many different languages. It is intended primarily for use in computer programming courses although it can be used to grade any question for which the answer is text. It is normally used in Moodle's adaptive quiz mode; students paste in their code in answer to each programming question and get to see their test-case results immediately. They can then correct their code and resubmit, typically for a small penalty.

For example:

Image of a simple CodeRunner question

  • Demo quizzes

    To see how CodeRunner quizzes behave, try taking the Python3 demo quiz below. You'll be asked to register as a user on the site first, but this is painless and straightforward. Don't worry, we won't spam you as a consequence. 

    The Python quiz is recommended to give you a feel for CodeRunner's capabilities, even if you don't understand Python3; the questions could (for the most part) be written in any of the supported Languages (Python2, Python3, C, C++, Java, PHP, JavaScript, Octave).

    The other quizzes shows a few simple C and Java questions, and demonstrate a few other features of CodeRunner such as SQL, the GraphUI and a Python3 'sandpit' that provides students with a question in which they can test out any code, including code that plots a graph using matplotlib.

  • CodeRunner Authors' Forum

    A forum for exchange of question ideas and suggestions, bug-reports or anything else related to CodeRunner. Subscribe yourself to this forum if you wish to receive such news.

     Enter the forum