AI Detector
Chrome Web Store

Browser extension

AI Detector Chrome Extension

Detect AI-generated content on any webpage instantly. Right-click, highlight, and know in seconds whether text was written by ChatGPT, Claude, or Gemini.

Try It Online First

95.2% accuracy and 3.1% false positives in our April 2026 benchmark (500 texts).

Try the same detection engine online

Paste any text below to see our AI detection in action — this is the exact same engine powering the Chrome extension.

Sentence-level reportThird-party verified
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Detection details

AI models detected
ChatGPTGPT-4oClaudeGeminiLlama 3MistralGrok
What we check
  • Perplexity
    How predictable each word is
  • Burstiness
    Variation in sentence length
  • N-gram patterns
    Repeated phrase signatures
  • Stylometric fingerprint
    Author-level writing traits
Privacy-first scanning
We don't store or train on your text. Your scan history and shared reports keep only the score and a short preview.

Powerful AI detection, right in your browser

Everything you need to identify AI-generated content without switching tabs

Instant Detection

Highlight any text on a webpage and get instant AI detection results without leaving your browser.

Real-Time Analysis

Analyze emails, articles, student submissions, and social media posts as you browse.

Benchmark-tested engine

Same detection engine as aidetectors.io — 95.2% accuracy and 3.1% false positives in our April 2026 benchmark (500 texts) — now in your browser.

Works on Any Webpage

Highlight text on Gmail, LinkedIn, WordPress, Medium, or any page where you can select text.

Detailed Reports

Sentence-level highlighting shows exactly which parts are AI-generated.

Private & Secure

Your text is sent only to produce the result and is not used to train our models.

How it works

Three steps to detect AI content anywhere on the web

1

Install the Extension

Add our free extension from the Chrome Web Store in one click.

2

Highlight Any Text

Select text on any webpage, email, or document you want to check.

3

Get Instant Results

See AI probability scores with sentence-level highlighting in seconds.

Built for professionals who need fast answers

For Educators

Check a passage from a student submission without leaving the page you are reading it on.

  • Highlight a passage and right-click to analyze it
  • Open the full sentence map on aidetectors.io
  • Save or share the report link with a colleague

For Content Managers

Verify freelancer submissions and ensure content authenticity before publishing.

  • Scan articles in WordPress or CMS dashboards
  • Check guest post submissions in Gmail
  • Verify content on competitor sites

For Recruiters & HR

Detect AI-written cover letters, resumes, and assessment responses during hiring.

  • Analyze cover letters in your ATS
  • Check writing samples in email
  • Verify assessment responses

Frequently Asked Questions

Is the AI detector Chrome extension free?

Yes, the Chrome extension works with the Free plan — 3 credits at signup plus 1 free credit every day. For unlimited daily credits and longer scans, you can upgrade to Pro at $9.99/month, which also unlocks all features on aidetectors.io.

What AI models can the extension detect?

The extension detects content from all major AI models including ChatGPT (GPT-3.5, GPT-4, GPT-4o), Claude (all versions), Google Gemini, Meta LLaMA, Mistral, and other popular language models.

Does the extension work on Google Docs?

The extension reads text you highlight on a webpage. Google Docs renders text on a canvas, so highlighting may not be picked up there; if it is not, copy the passage and paste it into aidetectors.io, or upload the exported DOCX.

Is my data private when using the extension?

Your highlighted text is sent to our servers only to produce the result and is not used to train our models. Results are displayed in your browser.

How accurate is the Chrome extension compared to the website?

The Chrome extension uses the exact same detection engine as aidetectors.io, which scored 95.2% accuracy with 3.1% false positives in our April 2026 benchmark (500 texts). There is no difference in detection quality.

Can I use the extension for academic integrity?

You can use it to check passages of student work where you read them, then open the full sentence-level report on aidetectors.io and save or share the report link. There are no LMS integrations at the moment, and no detector score should be the sole basis for an academic-integrity decision.

Explore more AI detection tools

AI Detector API Word Plugin Turnitin Alternative GPTZero vs aidetectors.io

Start detecting AI content in your browser today

Check any passage where you read it, then open the full sentence-level report on aidetectors.io.