How to Use Turnitin Plagiarism Checker: Complete Student Guide

Critical Warning: Students Cannot Check Their Own Papers

Before you continue, this is the most important thing to know:

Students generally CANNOT check their own papers using Turnitin.

Turnitin must be set up by your instructor through their learning management system (Canvas, Moodle, Blackboard, etc.) before you can access it. You cannot simply log into www.turnitin.com and submit your paper independently.

Why this matters: Many students search for “how to use Turnitin” thinking they can check their work before submission. In most cases, this is impossible without instructor setup.

What you CAN do:

• Use your institution’s learning management system (LMS) to submit assignments
• Request early access or draft feedback from your instructor if available
• Use alternative plagiarism checkers for self-review (see alternatives section)

What Is Turnitin and Why Students Use It

Turnitin is a widely-used plagiarism detection software that compares student submissions against:

• Billions of web pages
• Academic journals and publications
• Previously submitted student papers
• Books and other reference materials

Important distinction: Turnitin measures similarity, not plagiarism. It identifies matching text, but it’s up to you and your instructor to determine if the matches are due to:

• Properly cited quotes and references
• Common phrases and terminology
• Unoriginal writing (plagiarism)

Accessing Turnitin: Class ID and Enrollment Key

Since you cannot independently access Turnitin, here’s how you typically join a Turnitin class:

Getting Your Credentials

1. Ask your instructor for:
   • Class ID (a 6-10 digit number)
   • Enrollment Key (a case-sensitive password, 4-20 characters)
2. Important notes:
   • Turnitin support CANNOT provide these credentials
   • Only your instructor or institution can generate them
   • The enrollment key is case-sensitive (uppercase/lowercase matters)

Enrolling in a Turnitin Class

If your instructor has given you access:

1. Log in or create an account at www.turnitin.com
   • Use your student credentials provided by your institution
2. Enroll in a class:
   • Click “Enroll in a class” on the homepage
   • Enter the Class ID and Enrollment Key
3. Access your assignments:
   • Once enrolled, the class name appears on your homepage
   • Click the class to view assignments and submit papers

Common Access Issues

• Enrollment failed? Clear your browser cache and try again
• Wrong credentials? Double-check the Class ID and Enrollment Key with your instructor
• Account not active? Ensure you’ve completed account activation via the welcome email
• Browser problems? Try a different browser or device

Understanding the Similarity Report

When you submit your paper through Turnitin (via your instructor’s LMS), you’ll receive a Similarity Report. Here’s what it means:

The Similarity Score

The similarity score is a percentage showing how much of your text matches other sources. There is no single “good” score because:

• Papers with long bibliographies naturally have higher similarity
• Direct quotes (properly cited) increase similarity
• Common phrases and terminology match across many papers

Color-Coded Score Ranges

While institutions set their own thresholds, here’s a general guide:

Remember: A high percentage doesn’t automatically mean plagiarism. A 30% score could be perfectly fine if most matches are from your properly cited bibliography and quotes.

Interpreting the Report

1. Focus on the content, not the color:
   • Click on the similarity percentage to open Feedback Studio
   • Review highlighted matches one by one
   • Check if each match is properly cited
2. Use the “All Sources” panel:
   • See which sources constitute the majority of matches
   • Identify if a few sources are causing most of the similarity
3. Verify quotation marks:
   • Ensure all directly quoted text is in quotation marks
4. Review paraphrasing:
   • Ensure you’ve rewritten ideas in your own words, not just synonym-swapped
5. Re-submit if allowed:
   • If your instructor permits, correct issues and resubmit for a new report

Turnitin vs Turnitin Detector: Critical Difference

Many students confuse these two completely different tools:

Turnitin (Official Plagiarism Checker)

• Purpose: Compares submissions against internet, journals, and student papers
• Outcome: Provides a “Similarity Score” (e.g., 15% match)
• Access: Requires instructor setup through LMS
• Goal: Identifies copied text and improper citations

Turnitin Detector (Third-Party Tool)

• Purpose: Free online plagiarism checker for students
• Access: Available without instructor setup
• Limitations: Smaller database, less accurate than official Turnitin
• Warning: Not all institutions accept submissions checked with third-party tools

Be careful: Using Turnitin Detector won’t replace official Turnitin checks. Always confirm with your instructor which tool they accept.

Turnitin Features for Students

Draft Coach™

Available in some institutions, Draft Coach allows students to:

• Run similarity reports on drafts before final submission
• Check citations and references as you write
• Get feedback on plagiarism issues early

Feedback Studio Features

When reviewing your report:

• Match Grouping: Categories help identify types of matches
• Flags Panel: Detects irregularities like hidden characters or replaced text
• Source Panel: Shows where each match came from
• Filter options: Exclude bibliography, quotes, or small matches

Turnitin Clarity

Some institutions provide Turnitin Clarity, which:

• Shows your writing process over time
• Identifies pasted vs. typed text
• Tracks revision timelines

Best Practices for Using Turnitin

Before Submission

1. Ask about access: Confirm if you can check your work before final submission
2. Request early feedback: Some instructors allow draft submissions for similarity checks
3. Use your LMS: Submit through your institution’s Canvas/Moodle, not www.turnitin.com directly
4. Check formatting: Ensure your document meets Turnitin’s requirements (supported formats: .doc, .docx, .pdf, .txt)

During Writing

1. Cite as you go: Use citation management tools (Zotero, Mendeley, EndNote)
2. Paraphrase properly: Don’t just swap synonyms; rewrite in your own words
3. Use quotation marks: For any text that isn’t your original wording
4. Keep a paper trail: Save drafts to show your writing process

After Receiving Your Report

1. Review carefully: Don’t just look at the percentage
2. Identify issues: Note matches that aren’t properly cited
3. Make corrections: Fix citations, paraphrase, or add quotes
4. Resubmit if allowed: Get a new report before final submission

What Turnitin Cannot Do

Important Limitations

Turnitin does NOT:

• Detect AI-generated content (separate AI detection feature)
• Automatically flag plagiarism (it flags similarity; instructors determine plagiarism)
• Provide a definitive “pass/fail” judgment
• Replace proper academic writing skills

AI Detection: Turnitin has an AI writing detection feature, but:

• It’s separate from the Similarity Report
• Students often cannot see AI detection results
• AI detectors can have false positives
• Always check your institution’s AI policy

Turnitin Alternatives for Students

If you need to check your work before submission:

Free Options

• QuillBot Plagiarism Checker: Limited free checks
• Grammarly: Basic plagiarism detection (Premium required)
• SmallSEO Tools: Free plagiarism checker
• DupliChecker: Free plagiarism checker

Premium Options

• Grammarly Premium: Comprehensive plagiarism check
• Copyleaks: Advanced plagiarism detection
• Plagscan: Enterprise-grade checker

Important: Always confirm with your instructor which alternatives they accept.

Common Mistakes to Avoid

❌ Mistakes Students Make

1. Trying to access Turnitin without credentials
   • You can’t log in without Class ID and Enrollment Key
2. Confusing similarity with plagiarism
   • High similarity ≠ automatic plagiarism
3. Ignoring the source panel
   • Don’t just look at the percentage; review what’s matching
4. Submitting the same paper twice
   • Your paper becomes part of the database for future checks
5. Using third-party tools without permission
   • Some institutions prohibit unofficial checks

✅ Best Practices

1. Get credentials from your instructor
2. Focus on proper citation, not zero similarity
3. Review each highlighted match
4. Submit original work from your first draft
5. Follow your institution’s policies

FAQ: Turnitin Questions for Students

Q: Can I check my paper on Turnitin before my instructor sees it?

A: Only if your instructor has enabled Draft Coach or allows early submissions. Otherwise, you cannot access Turnitin independently.

Q: What’s a good Turnitin score?

A: There’s no single good score. 0-24% is generally acceptable, but context matters. Focus on proper citation, not the percentage.

Q: Does Turnitin detect AI writing?

A: Turnitin has an AI detection feature, but it’s separate from the Similarity Report. Students often cannot see AI detection results. Check your institution’s policy.

Q: Can I use Turnitin Detector instead of official Turnitin?

A: Only if your instructor accepts it. Turnitin Detector has a smaller database and may not be as accurate.

Q: What happens if I get a high similarity score?

A: Don’t panic. Review the report to see if matches are properly cited. If you have concerns, discuss with your instructor before final submission.

Q: Can I resubmit my paper to get a lower score?

A: Only if your instructor allows it. Resubmitting creates a new Similarity Report, but your paper becomes part of the database.

Related Guides

• How to Avoid Plagiarism: Definition, Examples & Detection Tools
• Citation Management Tools Comparison: Zotero vs Mendeley vs EndNote
• How to Write an Abstract for Research Paper: A Complete Guide with Examples

Next Steps

If you need help with your paper:

• Order from Advanced-Writer: Our team of qualified writers (with Bachelor’s, Master’s, and Ph.D. degrees) can help you write or edit your academic papers
• Free revisions: We offer free revisions within 48 hours of delivery
• Contact us: Our 24/7 support team is available via phone, email, and live chat

Start your order: Order Now | View Pricing: Pricing Page

This guide is based on official Turnitin documentation and university library resources. Turnitin policies may vary by institution—always check with your instructor for specific requirements.