OriginCheck: AI Text Detector

Understand the structure, origin, and authenticity of any written text with OriginCheck. Whether you are reviewing essays, articles, blog posts, emails, or student submissions, OriginCheck provides transparent, multi-metric linguistic analysis to highlight whether writing exhibits human nuance or machine-generated uniformity. Unlike black-box detectors that give opaque, arbitrary scores with zero explanation, OriginCheck evaluates text through proven computational linguistics and stylistic metrics: 🔍 TRANSPARENT MULTI-METRIC ANALYSIS • Sentence Rhythm & Burstiness (CV): Measures natural variations in sentence length. Natural human writing rhythmically varies short and long sentences, while LLMs lean towards uniform, formulaic structures. • Vocabulary Diversity (MATTR): Computes Moving-Average Type-Token Ratio to assess vocabulary richness and lexical repetition across sliding windows. • Structural Repetition & N-Gram Index: Identifies recurring syntax templates, transition clichés, and artificial phrase loops. • Perplexity & Entropy Heuristics: Scans for statistical predictability and standardized word choice common in generative models. 📊 EXPLAINABLE SIGNAL BREAKDOWN Never guess why a score was generated. OriginCheck breaks down every analysis into transparent, understandable signal facets: - Vocabulary Breadth & Lexical Novelty - Cadence & Sentence Length Variance - Structural Predictability & Transition Frequency - Paragraph Cohesion & Pattern Symmetry ⚖️ SIDE-BY-SIDE DRAFT COMPARISON Compare two versions of an article, essay, or prompt response side-by-side. Inspect how editing, rewriting, or paraphrasing shifts lexical diversity, burstiness, and origin signals in real time. 🚀 SYSTEM-WIDE ANDROID SHARE TARGET Highlight text in any web browser, email client, PDF reader, or notes app and tap "Share > OriginCheck" to receive an immediate forensic breakdown without manual copying and pasting. 📚 LEARN & UNDERSTAND AI DETECTION Access built-in educational modules on how Large Language Models generate text, why statistical burstiness matters, and how computational stylometry identifies AI-generated artifacts. 🔒 100% ON-DEVICE PRIVACY FIRST Your content stays yours. OriginCheck runs all core linguistic evaluations locally on your device. Zero text is uploaded to remote servers, stored in external clouds, or shared with third parties. 📁 HISTORY & INSTANT EXPORT Review past scans, search analyses by keyword, and generate formatted summary reports to share with colleagues, educators, or editorial teams. OriginCheck is designed for educators, students, researchers, content creators, editors, copywriters, and anyone seeking clarity and transparency in the AI era.