Turnitin AI Detector - Free AI Checker with Unlimited Words<br>Free AI checker for essays and academic drafts<br>Free Turnitin AI Detector<br>Check essays, papers, and academic drafts for AI-like writing.<br>Paste your text and get an instant AI detection score for free.<br>Free AI checkerNo signup requiredInstant AI scoreSentence highlights

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Submission review<br>Check AI Writing Before Submission<br>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.

01<br>Essay Drafts<br>Check school essays, college papers, and short assignments before turning them in.

02<br>Research Papers<br>Review paragraphs, literature reviews, and academic explanations for AI-like patterns.

03<br>Academic Assignments<br>Scan discussion posts, reports, reflections, and application drafts in seconds.

How it works<br>How the AI Detector Works<br>A simple three-step workflow: paste your text, run the AI detection check, and review your AI score with sentence-level highlights.

Paste Your Text<br>Add your essay, paragraph, report, or academic draft into the text box.

Run the AI Detection Check<br>The checker analyzes writing patterns such as sentence rhythm, repeated phrasing, predictable structure, and AI-like academic tone.

Review Your AI Score<br>Get an instant AI probability score, risk level, and highlighted sentences that may need review.

For students<br>Turnitin AI Checker for Students<br>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.

Check Essays for AI<br>Review essays before submission and find paragraphs that need clearer personal reasoning.

Review Research Papers<br>Scan longer academic sections for generic phrasing and repeated sentence structure.

Scan Discussion Posts<br>Check short responses, reflections, and class forum posts with instant AI scoring.

Check Application Drafts<br>Review statements, scholarship drafts, and application essays for natural flow.

AI score<br>What Your AI Detection Score Means<br>Use the score as a writing review signal. The higher the AI-like percentage, the more your draft may benefit from sentence-level revision.

AI Score<br>Meaning<br>Suggested Review

0–30%<br>Mostly human-like<br>Light review may be enough.

31–60%<br>Mixed writing signals<br>Review highlighted sentences and add more natural variation.

61–80%<br>High AI-like patterns<br>Revise sentence structure, tone, and examples.

81–100%<br>Very strong AI-like signals<br>Rewrite carefully and add more specific reasoning.

Benefits<br>Why Use This Turnitin AI Detector?<br>Built for fast, practical AI writing checks with a simple score and clear sentence-level feedback.

$0<br>Free AI Detection<br>Check your text for AI-like writing without paying for every scan.

No Signup Required<br>Paste your text and run an AI detection check instantly.

A+<br>Essay-Friendly Results<br>Designed for essays, papers, assignments, and academic writing.

Sentence-Level Highlights<br>Find the sentences that may sound too predictable, robotic, or AI-generated.

Writing signals<br>Common AI-Like Writing Patterns We Check<br>The detector reviews common patterns often found in generated or heavily AI-assisted writing.

Repetitive Sentence Structure<br>Repeated sentence shapes can make a draft feel mechanical.

Predictable Phrasing<br>Generic phrases and formulaic wording may raise AI-like signals.

Generic Academic Tone<br>Overly polished academic wording can sound less personal and less specific.

Low Writing Variation<br>Strong writing usually varies rhythm, length, and paragraph flow.

Mechanical Transitions<br>Repeated transition words can make arguments feel template-based.

Unnatural Paragraph Flow<br>AI-like paragraphs may move too smoothly without specific reasoning.

Model coverage<br>Can Turnitin Detect ChatGPT, Claude, or Gemini?<br>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.

ChatGPTGPT-4 / GPT-5ClaudeGeminiPerplexityOther AI writing tools

User feedback<br>What Users Say About This AI Detector<br>Feedback from educators, students, and academic writers who need fast AI writing review before deeper editing.

★★★★★<br>“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.”<br>Dr. Michael Reed<br>University Professor

★★★★★<br>“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.”<br>Emily Carter<br>High School Teacher

★★★★★<br>“I wanted to check my essay before...