Embed a free AI detector on your site

A one-line iframe that estimates how likely a piece of text is to be AI-generated. Built for teachers, writing centers, editors and blogs that want a free check without sending readers to a signup wall.

What it does

• Paste up to 3,000 characters, get an AI score plus the three strongest signals.
• Same model as the full AI detector.
• No API key, no signup, no tracking pixels. Nothing is stored — text is discarded after each check.

Live preview

Snippet (fixed height)

Simplest option — pick a height that fits your layout.

<iframe
  src="https://gpt-undetectable.com/embed/detector"
  title="Free AI detector"
  style="width:100%;max-width:520px;height:330px;border:1px solid #e5e7eb;border-radius:12px"
  loading="lazy"
></iframe>

Snippet (auto-resize)

The widget reports its own height, so the iframe grows and shrinks with the result card. Paste both the iframe and the listener.

<iframe
  id="ai-detector-widget"
  src="https://gpt-undetectable.com/embed/detector"
  title="Free AI detector"
  style="width:100%;max-width:520px;height:330px;border:0"
  loading="lazy"
></iframe>
<script>
  window.addEventListener('message', function (e) {
    if (e.origin !== 'https://gpt-undetectable.com') return;
    if (e.data && e.data.type === 'ai-humanizer-detector') {
      var el = document.getElementById('ai-detector-widget');
      if (el) el.style.height = e.data.height + 'px';
    }
  });
</script>

Notes

• The widget is free to embed, including on commercial sites. No attribution required — the "Powered by" line is part of the widget.
• Each visitor gets a fair-use daily quota; heavy automated use will be rate-limited.
• Scores are estimates from a language model, not a verdict. Do not use them as the sole basis for academic misconduct findings.

Questions or a different embed size? Contact.