AI Essay Checker
Check whether an essay reads as AI-written, with a sentence-level breakdown of every flag. Free and unlimited.
Tested against
Turnitin
GPTZero
Originality.ai
Copyleaks
ZeroGPT
Winston AI
Scribbr
Writer
Sapling
Crossplag
Content at Scale
The checker reports an overall risk figure, a projection of how the major detectors are likely to read the text, and a per-sentence heatmap. Click any highlighted sentence for the specific signals behind it.
The overall score comes from a live AI-detection model. The per-detector verdicts are estimates of how tools like GPTZero, ZeroGPT and Copyleaks are likely to read your essay. We do not query Turnitin, whose AI detector is only available to schools.
How to check an essay for AI: paste the full essay, not one section, so each sentence is scored in context. Press Detect AI, then start with the red sentences. Most flagged essays share two or three habits, such as every sentence running the same length or paragraphs opening with "Furthermore" and "Moreover".
If you wrote the essay yourself and it still scores high, that is a known false-positive pattern, most common in formal academic prose and in writing by non-native English speakers. Keep your drafts and notes, and use the heatmap to see which sentences drove the score.
FAQ
No AI checker is accurate enough to accuse someone on, including the paid ones. Treat every reading, ours included, as a prompt to look at the writing, never as proof of anything.
Almost certainly not. Different detectors disagree with each other constantly, which is itself the strongest argument against treating any of them as evidence.
You can, and we would ask you not to use the result as a basis for an accusation. It is not built for that and nothing currently sold is.
The writing analysis and your Style DNA run in your browser. For a real AI score, the text you check is sent to an AI-detection provider, and we never store it. When you rewrite on a paid plan, the draft is sent to our server, rewritten and sent back without being stored. AI features (rewriting, humanizing and Copilot) send the text to Cloudflare Workers AI, which processes it and doesn't keep it.
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