Originality.ai Chrome Extension

Originality.ai Chrome Extension

The Originality.ai Chrome Extension delivers the most accurate AI detection and plagiarism checks directly within Google Docs and your Chrome browser, making it a seamless part of your core workflow for writing and reviewing content.

Designed for writers, students, educators, editors, and publishers, the extension helps you maintain transparency, prove authorship, and reduce false positives with advanced writing replay and auto-typing detection.

What You Can Do with the Chrome Extension

• Scan Google Docs for AI-generated text and plagiarism
• Scan any web page or selected text in Chrome
• Watch a character-by-character replay of how a document was written
• Detect non-human typing behaviour (auto-typing tools)
• Generate shareable read-only reports
• View AI score, plagiarism score, word count, paste activity, contributors, and revisions

Proven Accuracy

Originality.ai is backed by internal testing and third-party studies:

• 99% AI detection accuracy
• Up to 99.5% plagiarism detection accuracy
• 97.8% multilingual AI detection accuracy (30 languages)
• Tested on the latest LLMs including GPT-5.2, Gemini 3, and Grok 4.1 Fast

Note: No AI detector is 100% accurate. AI scores should always be reviewed with human judgment.

How It Works

In Google Docs

1. Install the Originality.ai Chrome Extension from the Chrome Web Store.
2. Click the Originality.ai icon and log in.
3. Open a Google Doc.
4. Click Scan to analyze for AI writing and Plagiarism.
5. (Optional) Click Video to watch Writer Replay.
6. Review the Auto-Typing (Human Typing) Score for additional insights.

On a Web Page

1. Install and log in to the extension.
2. Navigate to any web page in Chrome.
3. Click the extension icon.
4. Choose to scan the full page or selected text.

Shareable Reports

Generate read-only reports that include:

• AI score
• Plagiarism score
• Writing replay
• Typing behaviour insights

Reports can be shared with instructors, editors, managers, or clients to support transparency.

Key Features Explained

AI & Plagiarism Detection in Google Docs

Scan content directly inside Google Docs without disrupting your workflow.

• AI score
• Plagiarism score
• Model auto-selection for non-English text
• Shareable reports
• Synced results with the web app

Writer Replay

Writer Replay provides a character-by-character video of the writing process using Google Docs revision history.

You can see:

• Writing replay (sped-up)
• Paste counts and paste locations
• Word count and character count
• Contributors and contribution ratios
• Revision history

Why It Matters

False positives can happen across any AI detection system. Writer Replay allows students, writers, and professionals to demonstrate how the document was created, providing transparency and context beyond a simple score.

Auto-Typing Detection (Human Typing Score)

Auto-typing detection analyzes typing behaviour patterns, not content.

It evaluates:

• Inter-keystroke timing
• Typing cadence
• Burst patterns
• Paste behaviour
• Correction patterns

The system produces:

• A Human Typing Score
• Supporting behavioural insights

What It’s Used For

• Academic integrity reviews
• Authorship verification
• Identifying automated typing tools
• At-scale document screening

Important: The Auto-Typing Score is a supporting signal, not a final verdict. Always review alongside AI and plagiarism scores.

Who Is It For?

✍️ Writers

Prove your work is your own and confidently address AI accusations.

🎓 Students

Demonstrate academic integrity and show your assignment was naturally written.

🧑‍🏫 Teachers

Identify AI-written, auto-typed, or human-written work with greater transparency.

📰 Editors & Publishers

Protect your brand and reduce AI-generated or low-quality submissions.

🏢 Businesses & Agencies

Validate freelance work and maintain quality control at scale.

Updated on: 18/02/2026