Plagiarism Checker
Check originality signals, repeated passages, cliches, exact-search phrases, and document-to-document similarity.
Your Text
How This Originality Checker Works
This tool analyzes originality signals by detecting common cliches, overused filler words, repeated sentences, repeated 5-word phrases, and document-to-document overlap. It also generates exact-match search queries from distinctive sentence fragments so you can check whether a passage appears in indexed sources.
What Is Included in the Plagiarism Report?
The generated plagiarism report summarizes word count, uniqueness score, repeated passages, overused wording, optional two-text similarity, and exact-match search phrases. It is designed for quick editorial review before you run a database-backed plagiarism scan or submit final work.
What Is Cosine Similarity?
Cosine similarity measures the angle between two word-frequency vectors in multi-dimensional space. A score of 100% means the texts use identical words in identical proportions. A score near 0% means the texts share almost no vocabulary. This metric is widely used in natural language processing and information retrieval for document comparison.
Tips for More Original Writing
Avoid cliches by finding fresh ways to express common ideas. Replace overused adverbs like "very" and "really" with more specific adjectives. Use concrete examples instead of generic phrases. Read widely to develop a diverse vocabulary. Revise your drafts specifically to eliminate formulaic expressions.
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Frequently Asked Questions
Does this tool check my text against the internet?
No. This tool performs local text analysis — it checks for cliches, overused words, and compares two texts you provide using cosine similarity. It does not search the web or any database of published content. For full web-based plagiarism detection that compares your text against online sources, professional tools like Turnitin or Copyscape are recommended. Our tool is best for improving originality and comparing specific documents.
What does the uniqueness score measure?
The uniqueness score reflects how free your text is from common cliches, overused filler words, repeated sentences, and repeated 5-word phrases. This measures phrase-level originality and self-repetition, not full source originality across the web.
How does the text comparison feature work?
The comparison uses cosine similarity, a standard natural language processing technique. It converts each text into a word-frequency vector and measures the angle between them. A similarity of 100% means identical word usage in identical proportions. Scores above 70% suggest significant overlap. This method catches paraphrasing better than exact-match comparison but may miss semantically similar content expressed with different vocabulary.
Can this detect AI-generated plagiarism?
This tool detects writing quality issues common in both AI-generated and plagiarized content — cliches, formulaic expressions, and overused words. However, it is not specifically an AI detector. For AI content detection, use our dedicated AI Text Detector tool. Combining both tools gives you a more complete picture of content originality and authenticity.
Is this tool suitable for academic use?
This tool is useful for students and researchers who want to improve their writing originality before submission. It helps identify cliches and overused words that weaken academic prose. However, it does not replace institutional plagiarism checkers like Turnitin that compare against databases of published papers and student submissions. Use it as a writing improvement tool alongside your institution's required checking systems.
Is my text stored or shared when I use this tool?
No. All analysis runs entirely in your browser using client-side JavaScript. Your text is never sent to any server, indexed, or stored in any database. This means your unpublished work, drafts, and research remain completely private. You can verify this by using the tool with your network connection disabled after the page loads.