Paste up to 500 words. You get an AI percentage for the whole text, a breakdown of human, mixed and AI sentences, and each sentence highlighted by how likely it is to be AI.
The large number is the AI percentage for the whole text: how likely it is that the text as a whole was generated by AI. Under 35% reads as human, 35 to 70% as mixed, over 70% as AI.
The bar below splits your sentences into human, mixed and AI. A text can score as AI overall while still having a few human sentences, which is common when someone edits an AI draft.
In the text itself, each sentence is shaded by how likely it is to be AI. The darker the shade, the more it reads as generated. Hover or tap a sentence to see its number.
AI detectors do not look for particular words. They measure how predictable the writing is and how even it is: whether every sentence is about the same length, built the same way and uses the expected next word.
People write unevenly. They use a short sentence, then a long one, pick a slightly unexpected word, leave a thought unfinished. That unevenness is what reads as human.
The longer version is in how AI detectors work.
People call this tool different things: an AI checker, an AI text detector, an AI content detector, an AI writing checker. It is one job. You paste a text and find out how much of it reads as generated.
It works on any English prose. Use it as an AI essay checker before you hand work in, as a content check before you publish, or to look at something you were sent.
Students check their own work before they submit it, so there are no surprises. Teachers and editors check work they receive. Businesses check content from freelancers and agencies before publishing it.
Because results are sentence by sentence, you know exactly which part to look at instead of guessing from a single number.
The detector is tuned for English writing. Results usually come back in a few seconds.
No AI detector is right every time, and ours is no exception. Very short texts, heavily edited texts, translations and very formal writing are the hardest cases. Treat the result as strong evidence, not proof.
If your own writing is flagged, look at the highlighted sentences. They usually share the same pattern: even length and stock phrasing. Rewriting those few sentences often changes the result.
For what independent studies have found, read are AI detectors accurate?
A plagiarism checker compares your text with existing sources to find copied passages. An AI detector does not compare anything. It reads the writing itself and estimates whether it was generated. A text can be completely original and still read as AI.
The neepora AI humanizer rewrites AI text the way people write, keeps every fact, and scores the result with this detector.
Yes. You can check up to 500 words at a time without an account. With a free account you can check up to 1,500 words.
Yes. AI checker, AI detector and AI content detector are different names for the same kind of tool. This one gives you an AI percentage and a sentence-by-sentence breakdown.
Paste the text into the box above and press Check for AI. You get an AI percentage, a human, mixed and AI breakdown, and each sentence highlighted.
It is built to detect text from the major AI writing assistants and chatbots, including the latest large language models.
Yes. Short texts, translations and very formal human writing are sometimes flagged. Use the sentence highlights to see why a text was flagged.
Yes. It works on any prose: assignments, reports, applications, articles and emails.
It is how likely the text as a whole was written by AI. Under 35% reads as human, 35 to 70% as mixed, and over 70% as AI.
No text is used to train models. Checks without an account are not linked to you.
Look at the highlighted sentences first. To rewrite the whole text so it reads human while keeping its meaning, use the neepora AI humanizer.