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Show HN: Turnitindetector.ai – Free AI checker for essays, no sign-up

Turnitindetector.ai launched a free AI checker for essays that requires no sign-up, allowing students and educators to paste text and receive an instant AI detection score with sentence-level highlights. The tool analyzes writing patterns such as sentence rhythm and repeated phrasing to identify AI-like content, aiming to help users review academic drafts before submission.

read4 min views1 publishedJun 30, 2026

Check essays, papers, and academic drafts for AI-like writing.

Paste your text and get an instant AI detection score for free.

The AI detection result will appear here.

Submission review

Before submitting an essay, research paper, or academic draft, review whether your writing may look AI-generated and identify the sentences that need more human reasoning.

Check school essays, college papers, and short assignments before turning them in.

Review paragraphs, literature reviews, and academic explanations for AI-like patterns.

Scan discussion posts, reports, reflections, and application drafts in seconds.

How it works

A simple three-step workflow: paste your text, run the AI detection check, and review your AI score with sentence-level highlights.

Add your essay, paragraph, report, or academic draft into the text box.

The checker analyzes writing patterns such as sentence rhythm, repeated phrasing, predictable structure, and AI-like academic tone.

Get an instant AI probability score, risk level, and highlighted sentences that may need review.

For students Students use AI writing tools for brainstorming, outlining, editing, and grammar support. This AI checker helps review academic drafts and identify sentences that may sound robotic, repetitive, or AI-like.

Review essays before submission and find paragraphs that need clearer personal reasoning.

Scan longer academic sections for generic phrasing and repeated sentence structure.

Check short responses, reflections, and class forum posts with instant AI scoring.

Review statements, scholarship drafts, and application essays for natural flow.

AI score

Use the score as a writing review signal. The higher the AI-like percentage, the more your draft may benefit from sentence-level revision. Benefits

Built for fast, practical AI writing checks with a simple score and clear sentence-level feedback.

Check your text for AI-like writing without paying for every scan.

Paste your text and run an AI detection check instantly.

Designed for essays, papers, assignments, and academic writing.

Find the sentences that may sound too predictable, robotic, or AI-generated.

Writing signals

The detector reviews common patterns often found in generated or heavily AI-assisted writing.

Repeated sentence shapes can make a draft feel mechanical.

Generic phrases and formulaic wording may raise AI-like signals.

Overly polished academic wording can sound less personal and less specific.

Strong writing usually varies rhythm, length, and paragraph flow.

Repeated transition words can make arguments feel template-based.

AI-like paragraphs may move too smoothly without specific reasoning.

Model coverage

AI writing tools such as ChatGPT, Claude, Gemini, and other language models can produce text with recognizable patterns. This AI detector checks for common AI-like signals across different types of generated or AI-assisted writing.

User feedback

Feedback from educators, students, and academic writers who need fast AI writing review before deeper editing.

“I use this AI detector as a quick reference when reviewing student drafts. The sentence-level highlights are especially useful because they show which parts may sound overly polished, repetitive, or AI-like.”

“This tool helps me quickly review essays and written assignments before having a deeper conversation with students. The AI score is easy to understand, and the highlighted sentences make the result more practical.”

“I wanted to check my essay before submitting it. The tool was simple: I pasted my text, got an AI score, and could immediately see which sentences needed more revision.”

“I used it for a research paper draft. The result helped me find paragraphs that sounded too generic, so I could add more specific reasoning and examples.”

“The AI detection result gave me a useful reference point. I liked that it did not just show a score, but also pointed out sentences that felt too predictable or mechanical.”

“I like how fast it is. No signup, no complicated settings, just paste the text and check the AI writing score. It is useful when I want to review my draft quickly.”

FAQ

Common questions about AI detection, essay checking, and AI writing scores.

Yes. You can paste text and run an AI detection check for free.

Yes. The tool is designed for essays, academic papers, assignments, and other student writing drafts.

AI detection systems may review patterns often associated with AI-generated or AI-assisted writing, including text from ChatGPT and similar tools.

A high score means the text contains more AI-like writing signals, such as predictable phrasing, generic tone, or repeated structure.

AI detection should be used as a writing review reference. Results can vary depending on text length, writing style, and editing history.

Yes. You can check research drafts, literature review sections, reports, and other academic writing.

The checker is designed to review AI-like signals across modern AI writing tools, including GPT-style text.

Review highlighted sentences, add specific examples, vary sentence structure, and make sure the writing reflects your own thinking.

Paste your draft, get an instant AI score, and review highlighted sentences before submission.

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