Predictability
Language models pick the most likely next word, so their text is smooth and expected. People choose surprising words, idioms and local references.
AI detector + writing coach
AI content checker that explains every sentence
Paste any text to see how AI-like it reads, which sentences give it away and why, and exactly what to change so it sounds like a real person wrote it. Free, private and instant.
- Sentence-levelhighlights with the reason
- Burstiness& rhythm, like GPTZero measures
- Writing improverone-click plain-English edits
- Privateruns in your browser
How AI detectors tell machine writing from human writing
Burstiness
AI keeps sentences at a similar length and rhythm. People mix three-word sentences with long, winding ones. We measure the variation directly.
Stock phrases and templates
"It is important to note", "plays a crucial role", "Not just X, but Y", "Here is how". We track around 200 of these tells and patterns.
Voice and specifics
Real writers say "I", use contractions, name places and people, quote numbers and ask questions. Their absence is a strong AI signal.
An honest AI detector
No detector can prove who wrote a text, and some, including well-known ones, wrongly flag students who write in a careful, formal style or in a second language. So we show why each sentence was flagged, not just a number, and we tell you when the text is too short to judge.
The writing improver does not spin words or add typos to fool detectors. It points to what makes writing sound generic and helps you put more of yourself into it, which is what readers, teachers and Google reward.
- Free every day5 checks a day without an account, 20 with a free account.
- Long documentsPlus checks up to 15,000 words, Pro up to 50,000.
- Pairs with plagiarismRun the plagiarism checker for copied text and a verifiable report.
Questions people ask
Is this AI content checker free?
Yes. Without an account you get 5 checks a day of up to 1,500 words. A free H View account gives 20 checks a day of up to 3,000 words and unlocks the writing improver. Plus and Pro check long documents.
How does the AI checker work?
It measures the patterns AI detectors look for: how much your sentence lengths vary (burstiness), how even your paragraphs are, words and sentence templates AI models overuse, repeated openings, lists of three, and whether there is a personal voice with specific names, numbers and experiences. The weights were fitted on human-written English and AI-written articles.
Can it prove that a text was written by AI?
No tool can. AI detection is a probability, not proof. Formal, formulaic human writing, including writing by people for whom English is a second language, can score high. Use the result as a prompt to review, never as the only evidence.
Is my text stored?
No. The check runs inside your browser. Only the word count and the final score are counted for your daily limit; the text itself is never sent to or saved on our server.
How do I make my writing sound less like AI?
Write from what you know: add your own experience, real names, places and numbers, your honest opinion, and the questions your reader would ask. Mix short sentences with long ones and cut stock phrases such as "it is important to note". The writing improver points to each of these in your text.
Does it detect ChatGPT, Gemini and Claude?
It looks for writing patterns shared by today's large language models rather than one model's fingerprint, so it works across them. Heavily edited AI text, or AI text written to imitate a person's style, may score lower.
Share it with your class or team
Free, private and explains every result.
AI-writing scores are estimates based on writing patterns, not proof of authorship. Do not use them as the only evidence in academic or employment decisions.
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