Plagiarism Checker

The Plagiarism Checker in Originality.ai helps you verify whether your content is original or contains text that matches existing material published online. This feature scans your content against a vast database of webpages to identify potential duplication and provide clear source references.

Whether you're reviewing academic writing, blog posts, marketing copy, or AI-generated content, the plagiarism checker helps ensure your work is unique and properly attributed.

What the Plagiarism Checker Does

The plagiarism checker analyzes your text and compares it against publicly available web content to identify potential matches.

During a scan, the tool will:

• Detect exact or closely matching text
• Highlight sections of your content that appear elsewhere online
• Provide links to the original sources
• Display a similarity percentage for the content scanned
• Limited to 10,000 words (platform, Moodle integration, Chrome Extension, and public API)

This makes it easy to identify duplicate passages and revise them if needed.

How to Run a Plagiarism Scan

Using the plagiarism checker in Originality.ai is simple:

1. Log in to your Originality.ai account.
2. Paste your content or upload a document.
3. Select the Plagiarism Scan option.
4. Start the scan.
5. Review the results and highlighted matches.

Matched text will be highlighted so you can quickly see which sections may need editing or citation.

Understanding the Results

After the scan is complete, you will see:

• A similarity percentage showing how much of the content matches other sources
• Highlighted passages that appear elsewhere online
• Source links where the matching content was found

A higher similarity score may indicate that parts of the content should be rewritten or properly cited.

When to Use the Plagiarism Checker

You may want to run a plagiarism scan when:

• Reviewing student assignments or academic work
• Checking freelance or outsourced content
• Publishing blog posts or articles
• Reviewing AI-generated content
• Ensuring marketing or website copy is original

Running a plagiarism check before publishing helps maintain credibility and avoid potential copyright issues.

Updated on: 11/03/2026