Plagiarism Checker
Detect plagiarism and AI-generated content, remove em-dashes and AI clichés, humanize text and rewrite for originality all in one tool, up to 5000 characters.
Plagiarism Risk
AI Detection
🧹 Cleaned Text
Em-dashes & AI markers removed✨ Humanized Text
Natural & human-like🎯 Final Rewritten Text
Original & plagiarism-safe📊 Before vs After
About This Tool
This Plagiarism Checker is a complete content-cleaning workspace built for bloggers, students and content writers. It estimates plagiarism risk using n-gram overlap analysis, detects AI-generated patterns using sentence-burstiness and cliché-density signals, strips em-dashes and hidden Unicode that AI writers leave behind, then humanizes and rewrites the text into a natural, original version you can publish.
Everything runs directly in your browser. No text is sent to any server, no account is needed, and nothing is stored. Paste up to 5000 characters and get a full breakdown in seconds.
🔍 Plagiarism Detection
Uses trigram and 4-gram repetition analysis to estimate how much of your text matches common phrasing patterns found in published content.
🤖 AI Content Detection
Analyzes sentence-length variance (burstiness), cliché density, transition-word frequency and em-dash usage to estimate the probability that text was AI-generated.
🧹 AI Marker Cleaning
Removes em-dashes, en-dashes, smart quotes, zero-width Unicode characters, double spaces and a 200+ phrase blocklist of AI-typical openers and clichés.
✨ Humanizer Engine
Varies sentence length, injects natural contractions, swaps formal vocabulary for everyday words, and adds the slight imperfections that real writers use.
🎯 Originality Rewriter
Restructures sentences, reorders clauses and applies a 600+ word synonym dictionary to produce a version with low textual overlap to the original.
📊 Before & After Stats
Every output is re-analyzed so you can see your plagiarism score, AI score and readability improve in real time.