Code Plagiarism Checker | Code Playback

Code Plagiarism Checker for Programming Courses

Codio's class monitoring and code plagiarism detector tools allow you to check for code copying and potential cases of cheating between class members. With a click of a button, Codio’s code plagiarism checker will compare the code projects of all students within a class for a specific teaching unit. You can also include other reference codes for comparison. Results are available at any time and last forever, so you can run a plagiarism check and always access results.

Time Savings for All

Mateen Rizki

Chair of the Department of Computer Science & Engineering at Wright State University

The VM technology, integrated IDE and class monitoring tools are a killer combination. The time savings for students and faculty are huge.

Ready to get started?

Learn more about how Codio’s anti-plagiarism tools can save your CS Department and faculty time, money, and headaches!

Watch Demo

Prevent Plagiarism & Cheating with Evergreen Curricula

Create many unique programming assessments for a large course in minutes with parameterized assessments. Or assign a bank of pre-existing assessments to students at random to individualize each student's assignments.

In just a few clicks, you can create and assign different assessments to each student, individualizing their course materials and saving you countless hours in course maintenance and configuration. By giving each student unique programming assessments, you can avoid plagiarism or cheating altogether while saving countless hours reconfiguring course materials each semester.

Cheating Prevention

How is Plagiarism Detected?

To check for plagiarism, code checker software is built to identify similar matches in content. The software scans a database for similar code content, identifies its components, and then compares it to the content of other work. The software will then build a report that showcases any similarities between the submitted code and other source code.

According to the creators of the plagiarism detection tool MOSS, the software checks code for plagiarism through keyword analysis and by looking at groups and sequences of words.

However, in some cases, paraphrasing is not detected because the duplicate content in the text may be different enough that it doesn’t get identified as a match. The software also scans for matches by comparing the style of writing and identifying the order of words. This creates a “fingerprint” of the document, making it easier to detect plagiarism.
This combination of methods to detect copied code is the best method to ensure original content.

Can Codio detect cheating?

Your students learn by completing original work and submitting that work for grading and feedback. Codio can help prevent plagiarism and detect cheating. To help ensure academic integrity, Codio’s platform offers the following code plagiarism checking and cheating prevention tools.

Plagiarism Checker

Playback Student Code

Code Playback is built into Codio’s integrated development environment (IDE). This feature is available to all teachers and is extremely easy to use. With a few clicks, teachers can access all of the files that students produce in Codio.

Now, when teachers want to see how a particular code file was built, they can simply select Tools → Code Playback and Codio will open the history of the in-focus code file. For a multi-file project, click on the folder icon to pull up the history of other project files too.

Code Playback

Prevent & Detect Plagiarism at Scale

Plagiarism detection systems available such as MOSS and JPlag were not developed for university programming courses. Therefore, they can require considerable effort to submit large files of student code projects and to interpret the results.

Codio integrates the Etector plagiarism detection system developed by CS educators for programming courses, providing instructors with enough data and analysis for a lecturer to make a conclusive, final decision. The burden of project data preparation and submission to remote systems such as Moss and JPlag is removed, resulting in a single-click process for the lecturer or teacher.

Plagiarism Checker

Keystroke Autosave-Enabled Insights

Codio automatically logs all student keystrokes, enabling advanced algorithmic exploration of learner behaviors, easy identification of skill gaps, and previously inaccessible insight into student performance and programming behaviors.

Learning Insights

Code Plagiarism Checker & Academic Integrity Tools