An AI detector for SEO and content teams

IsThisAiWritten is a free AI detector for SEO and content teams who review freelance articles, briefs and landing pages. There are no credits or seat licences to manage, a 6,000-word pillar page goes in whole, and drafts under NDA stay in your browser. Paste a draft below and see which passages read most like AI before the page goes live.

What content teams get

• Free for the whole team, with no sign-up. No accounts, seats, credits or daily cap, no paywall and no premium tier. Writers, editors and clients can all use the same page.
• No word or character limit. Pillar pages, long guides and a writer's full batch of articles go in as one check.
• Nothing is uploaded. The check runs in your browser, so client drafts and unreleased pages never leave your device.
• Your text is never stored, shared, sold or used to train anything. We never receive it.
• Every word is scanned, never a sample, so the FAQ block at the bottom of a page gets the same attention as the introduction.
• A report that explains itself: an AI-likeness score, sentence-by-sentence highlights, style notes with one-click plainer wording and a hidden-character and look-alike-letter cleaner.
• Opens .txt and .docx files right in the browser, so a writer's Word file needs no copying.
• No ads where you paste text.

Pillar pages and long guides in one check

Long-form content is where per-check caps hurt most, and here there are none. A 6,000-word guide goes in whole, with no splitting into chunks and no stitching results back together. The sentence map then shows whether the higher-scoring passages cluster in one section, such as an introduction, a comparison table write-up or an FAQ block, which tells an editor exactly where to start reading.

Using an AI detector for SEO content reviews: a workflow

1. Agree an AI policy with writers up front, in the brief or contract: what's allowed, and what must be disclosed.
2. When a draft comes in, paste the full article into the box above or open the .docx. Long pages don't need splitting.
3. Check the hidden-character notes first, and copy the cleaned text if the report found zero-width characters or look-alike letters.
4. Read the outcome and its confidence word, then the AI-likeness line.
5. For an AI or Mixed result, read the highest-scoring passages and ask the writer how those sections came together.
6. Keep a record if your team logs editorial checks: download the result as JSON, save it as a PDF or copy a short summary into your content tracker.
7. Decide on quality and accuracy first. A well-sourced, useful piece is still that, whatever the score.

Clean up generic phrasing before you publish

Much of what makes copy feel machine-made is a handful of stock phrases. The report's style notes mark them: phrases such as “in today's fast-paced world” and “plays a crucial role”, words such as “leverage”, “streamline” and “harness”, and em dashes. Each note says why it was marked, and where a plainer wording is safe you can apply it with one click (“matters” for “plays a crucial role”, “use” for “leverage”, “simplify” for “streamline”). You can edit the text in place, undo any change, and press Re-scan to check the revised version. Style notes are editing help and never feed the verdict.

Hidden characters before you publish

Zero-width spaces and look-alike letters can arrive in copy pasted from chat tools, documents and content management systems. They're invisible on the page but can interfere with exact-match search and with readers copying your text. The report's cleaner shows where they are and gives you a cleaned copy. If you only need that step, the standalone invisible character remover does it without running a detection check.

Search rankings and AI content

How Google treats AI content is its own question, and our article does Google penalize AI content? covers it. What an editor controls is whether a page is accurate and genuinely helpful to the person searching. The detector helps with the part of that review that is hard to do by eye on a long page: finding the passages that read most like generic AI copy, so you know where a rewrite will do the most good.

Working with freelancers

Put your AI policy in the brief and say exactly which uses are fine, for example research help or an outline but not finished paragraphs. When a draft is flagged, share the report with the writer. The sentence map and style notes point to specific passages, so the writer can explain how those sections came together or rework them, and the conversation stays short. Writers who keep drafts and research notes can usually show their process quickly. Our post on signs of AI writing covers editorial checks you can run alongside the detector.