How to use this free plagiarism checker
- Paste your text into the box — essays, research papers, articles, blog posts, or anything you want to check.
- Click Check Plagiarism & AI Score.
- Review your AI likelihood score, originality risk, and specific style flags.
- If the AI score is high, use our AI Humanizer to rewrite the text so it reads more naturally.
What does this checker detect?
This tool runs two analyses at once. The AI score estimates how likely the text was generated by tools like ChatGPT, Gemini, or Claude — based on writing patterns: sentence rhythm, vocabulary choices, structural habits, and formulaic phrases that AI models overuse. The originality risk score reflects how templated or generic the writing feels — high-risk text tends to be composed of phrases anyone might write, making it harder to prove originality.
Neither score is based on a web crawl. For a database comparison against indexed web pages, you would need a tool with a search index (like Copyscape or Turnitin). This checker is best used as a fast first-pass before submitting anywhere that matters.
When should you use a plagiarism checker?
- Before submitting a research paper or essay to check your AI score and writing originality.
- When editing AI-generated content — run a check, then humanize the flagged sections.
- Before publishing a blog post written with AI assistance.
- When reviewing student submissions or freelance writing for suspicious patterns.
Frequently asked questions
Is this plagiarism checker really free?
Yes. No signup, no credit card, no word limit per check. Paste your text and get results instantly.
Does this tool detect AI-generated text?
Yes. The checker analyzes writing patterns to estimate the likelihood that text was written by AI tools like ChatGPT, Gemini, or Claude. It returns a percentage score and specific style observations that explain the rating.
How accurate is the plagiarism score?
The tool analyzes writing style, structure, and patterns — not a web search database. It is best used as a quick first-pass check. For academic submission, always verify with your institution's approved tool (Turnitin, iThenticate, etc.).
Is my text stored or shared?
No. Text is sent to the analysis engine for processing and immediately discarded. Nothing is saved, logged, or used for training.