Direct answer
Turnitin on Canvas is an external-tool (LTI) integration that lets an instructor attach Turnitin's similarity and AI writing detection to a normal Canvas assignment, so a student's uploaded paper is checked and the resulting report opens inside Canvas rather than on a separate Turnitin website [1]. Students do not need a separate Turnitin login; access is authorized through their Canvas course enrollment [2]. What the reader sees in Canvas is a submission confirmation, a similarity percentage, and — when the instructor has enabled it — an AI writing indicator [1][3].
How Does Turnitin Work Inside Canvas?
Turnitin's Canvas integration is built on the LTI standard, which means the instructor first adds Turnitin as an external tool to the Canvas course and then switches it on for individual assignments [2]. Once enabled, the assignment can accept a file upload, typed text entry, or a Google Drive submission, and Turnitin processes whatever the student hands in [2]. The student experience stays inside Canvas: they open the assignment, submit, and the Turnitin viewer loads in the same tab.
Nothing about this requires a second account. Because the tool is authorized through course enrollment, a student's Canvas identity is passed to Turnitin automatically, so there is no separate Turnitin password to create or remember [2]. That is also why a student who has never visited turnitin.com can still see a Turnitin report attached to their Canvas assignment.
The practical consequence is that the instructor, not the student, controls whether Turnitin runs at all. If a Canvas assignment has no Turnitin icon or external-tool link, no similarity or AI check happens on that submission [1][2]. When the link is present, the paper lands in the Turnitin assignment inbox tied to that specific Canvas course and assignment.
What Does the Turnitin Report in Canvas Show?
The Similarity Report displays a percentage of text that matched other sources, plus colour-coded highlighting that points to the exact passages and the sources they match [3]. That number is a match score, not a verdict — quoted material, correctly cited references, and common phrasing all inflate it, which is why a high percentage is not automatically plagiarism [3].
When AI writing detection has been enabled, the report also shows an overall AI percentage and highlights the segments the detector suspects were machine-generated [3]. Turnitin deliberately shows an asterisk in place of a number — *% — when the AI score falls below its 20% confidence threshold, because those low-confidence signals are not reliable enough to report as an exact figure [3].
Instructors and students are looking at the same underlying report, just through different doors. Teaching staff open it from the Canvas assignment inbox or SpeedGrader, while students reach it through the submission details on their own assignment [1][3]. That symmetry matters: a student who understands the report in Canvas understands exactly what their marker will see.
Can a Student Check Their Turnitin Score Before Submitting on Canvas?
Usually not, and this is the single most common misunderstanding about the Canvas integration. Turnitin only generates a report after a submission exists, so unless the instructor deliberately creates a draft, ungraded, or peer-review assignment, there is no official way for a student to run a check on their own draft beforehand [4]. Many courses also disable resubmission, meaning that once a paper enters the Canvas Turnitin inbox it may be locked in place [4].
Because the Canvas report appears only after the fact, students who want to see their AI and similarity signals first have to look outside the LMS. A pre-submission preview service reproduces the same two outputs an instructor would see — an AI detection report and a similarity report — on a draft that has not yet been handed in [4]. That turns an irreversible submission into a reversible one.
The distinction to hold onto is between checking and submitting. Checking a draft is a diagnostic step a student can arrange independently; submitting is the graded event that creates the Canvas record [1][4]. Keeping those two separate is what lets a student fix flagged passages, tighten citations, and arrive at the real Canvas submission with the report they expected.
That is exactly the gap turnitin0 exists to close: it produces the same Turnitin AI detection and similarity reports your instructor will open in Canvas, on a draft you have not submitted yet, so you can see the score before it counts.
※ Turnitin0.com - Actual Turnitin AI Report Cover, Score, Flag And Similarity Summary
FAQ
Does Turnitin on Canvas store my paper permanently?
That depends on the assignment's repository setting, which the instructor chooses. Turnitin0's own pre-submission check is explicitly non-repository — the file is not added to Turnitin's student paper database and reports are not shared with third-party databases [1].
Why does my Canvas Turnitin report show *% instead of a number?
An asterisk replaces the figure when the AI score sits below Turnitin's 20% confidence threshold, meaning the signal is too weak to report as an exact percentage [3].
Do I need a Turnitin account to see my Canvas report?
No. The Canvas integration authorizes access through course enrollment, so no separate Turnitin login is required [2].
Can I submit the same draft twice in Canvas?
Only if the instructor has allowed resubmission on that assignment; many courses disable it, which is why checking a draft before the graded submission matters [4].
Is a high similarity score in Canvas the same as plagiarism?
No. The similarity percentage counts matched text, including properly cited quotations and references, so it is a signal to review rather than a finding of misconduct [3].