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Free AI Detector Chrome Extension

Stop copy-pasting paragraphs into a separate checker. Our free AI detector Chrome extension works right from the page you're reading. Select your text, click to detect, and get flagged results from ChatGPT, Claude, and Gemini in under five seconds.

50 plus languages supported
50+
Languages Supported
AI detection results in under five seconds
<5 sec
Typical Result Time
Sentence level AI text highlights
Sentence-level
Highlights

Why Choose Our AI Detector Chrome Extension

AI detection directly in Chrome

AI Detection in Your Browser

Select text on the page you are already reading and check it without opening a separate detector. The extension brings AI detection into your existing review workflow.

Accurate AI text detection

99% Detection Accuracy

Built to catch more than obvious AI phrasing, including paraphrased and lightly edited text that can slip past basic checkers.

Free AI detector extension with no sign-up

Free and No Sign-Up

Install the extension and start checking selected text without entering payment details or creating an account first.

Sentence level AI detection results

Sentence-Level Results

Go beyond a single percentage. Flagged sentences show which wording contributed to the score, so you know where to review more closely.

Fast AI detection results

Results in Seconds

Selected text returns a score in under five seconds, helping you keep moving through essays, applications, listings, and drafts.

AI detector extension across websites

Works Across the Web

Use the same select-and-check workflow in grading portals, applicant tracking systems, CMS platforms, email, and general webpages.

How to Use Lynote AI Detector Chrome Extension

Step 1

Install and Pin

Add Lynote from the Chrome Web Store, then pin it to your toolbar so it stays one click away.

Step 2

Select the Text

Highlight the text you want to check on any webpage, such as an email, article, essay, application, or listing.

Step 3

Check the AI Score

Choose AI Detector and get a score in seconds, with sentence-level highlights showing which lines contributed to the result.

Who Can Benefit From This AI Detector Chrome Extension?

AI detector extension for students

Students

Check your own drafts before submitting and review wording that may be flagged as AI-generated.

AI detector extension for teachers

Teachers and Professors

Scan submitted essays directly in a grading portal without exporting every file to a separate checker.

AI detector extension for hiring managers

Hiring Managers

Review cover letters and application answers for AI-written patterns while assessing candidates in an applicant tracking system.

AI detector extension for content editors

Content Editors

Check freelance or AI-assisted drafts before publishing, directly inside the CMS or webpage where you review them.

AI detector extension for recruiters

Recruiters

Screen resumes and outreach responses for AI-generated language without leaving your recruiting platform.

AI detector extension for marketplace sellers

Marketplace Sellers

Review listing descriptions and customer-facing copy before they go live on your storefront.

What People Say About the Lynote Plugin

Rachel teacher review
Rachel D.

High School Teacher

starstarstarstarstar

I grade essays through our school portal, and this catches things without me exporting every file somewhere else first.

Marcus recruiter review
Marcus T.

Recruiter

starstarstarstarstar

It runs right on LinkedIn and our ATS. Cover letters that read a little too smoothly get flagged before I spend time on a call.

Sofia editor review
Sofia L.

Freelance Editor

starstarstarstarstar

The sentence-level highlights are why I kept it installed. I can see exactly which line triggered the result instead of getting only a percentage.

Ben student review
Ben K.

College Student

starstarstarstarstar

I check my own drafts before submitting anything. It gives me another signal before the school's checker sees the work.

Priya ecommerce seller review
Priya M.

E-commerce Seller

starstarstarstarstar

I used it on listing copy from a freelancer I was unsure about. It gave me a quick reason to review the draft more closely.

Owen content manager review
Owen R.

Content Manager

starstarstarstarstar

I check drafts all day and used to keep a separate detector site bookmarked. Now the check is available from the page I am already reviewing.

Frequently Asked Questions

Using the Lynote AI detector extension in Chrome.

Yes. You can install the extension and start with free access. Paid options are available if you need more consistent use.

The extension can review multilingual text, although result quality can vary by language and writing style.

It can flag patterns that may remain after AI text has been paraphrased or edited. Treat the result as a review signal rather than proof of authorship.

Anywhere Chrome allows you to select webpage text, including email, student portals, job boards, CMS platforms, and general webpages.

No. You can install the extension and start checking selected text without creating an account.

It is designed to review text produced by common AI writing tools, including ChatGPT, Claude, and Gemini, as well as edited or paraphrased AI-assisted text.

Use it as a review signal alongside context, source checks, and your own judgment. An AI score should not be treated as proof of authorship by itself.

Yes. The result includes sentence-level highlights so you can review the specific wording that contributed to the score.