# Accurate Plagiarism Checker

Detect plagiarism from your text quickly and accurately. Our free plagiarism checker scans essays, research papers, or code, highlights matches, and provides easy-to-read plagiarism percentage reports.

## How does our plagiarism check work?

### 01
#### Enter text into GPTZero’s plagiarism software
Simply copy and paste text or upload a file into our plagiarism detector, and click ‘Scan’ to check for similar texts.

### 02
#### Evaluate your text for potential plagiarism
Get a similarity score and determine what percent of the text matches original sources from online.

### 03
#### Review plagiarism report
Find citations to avoid accidental plagiarism and preserve academic integrity.

## What is plagiarism?

[“Presenting work or ideas from another source as your own, with or without consent of the original author, by incorporating it into your work without full acknowledgement.”](https://www.ox.ac.uk/students/academic/guidance/skills/plagiarism)

GPTZero’s online plagiarism checker helps you identify plagiarized content by determining how much of the inputted text is original, which was found online and from what sources.

## Who uses our plagiarism checker?

### Writers and Authors
Safeguard your originality and avoid accidental plagiarism by verifying the uniqueness of your content before publication.

### Educators and Academic Institutions
Foster academic integrity in your classroom and teach students the importance of source citation.

### Researchers and Scholars
Validate the authenticity of your research findings and avoid unintentional plagiarism by cross-referencing your work with existing literature.

### Business and content creators
Maintain credibility and avoid copyright infringement by guaranteeing the originality of your marketing materials, website content, and creative assets.

## Identify AI-generated content.
Encourage originality with downloadable reports featuring in-depth analysis of AI vs. human text and classroom writing statistics.

## How to avoid accidental plagiarism
Use GPTZero’s plagiarism checker to find similar content from online sources and make sure all work is properly cited.

## Integrate with your existing classroom tools.
Add AI plagiarism detection seamlessly to Canvas, Google Classroom and other learning management systems.

## FAQs about our Plagiarism Checker
Everything you need to know about our Plagiarism Checker.

### What is a plagiarism checker?
A plagiarism checker scans your text and compares it against content that already exists, typically against a wide database of online sources including academic papers and articles. It shows how much of the inputted text is original, and highlights any overlaps with existing sources.

### How accurate is GPTZero’s plagiarism checker?
GPTZero’s plagiarism checker is built for accuracy and transparency. We are able to detect plagiarism from over 100M scholarly articles, research papers, websites, and books with confidence. Presenting AI-generated text as your own can also count as plagiarism in many cases.

### Is the plagiarism checker free?
Yes. GPTZero offers a free plan that covers up to 10,000 words per month. If you need more, you can upgrade to a paid subscription for higher limits.

### How do I use a plagiarism checker or detector?
It’s very simple: either paste the text into the tool or upload a file. The plagiarism checker scans it against a database of sources and quickly returns a similarity score, showing the percentage of overlap with existing content.

### What is the best plagiarism checker?
GPTZero’s plagiarism checker is the best in terms of accuracy and transparency. We don’t just give you a score: we show you which specific parts of the text might be flagged and link you to the original source.

### Is using AI considered plagiarism?
It can be. If you use an AI tool to create text and then present it as entirely your own, that can be considered “AI plagiarism.” The best practice is to be transparent and learn to cite AI as a source.

### What does the similarity score on this plagiarism checker mean?
The similarity score shows how much of your text matches existing sources. Our software compares vocabulary, sentence structure and phrasing, and alerts you when passages sound too much like other sources.

### How do I avoid plagiarism?
The simplest way to avoid plagiarism is to be transparent, and always give credit when you have used someone else's words or ideas. Add citations when you use someone else’s research and use quotation marks if you’re copying a phrase directly. Running your work through a plagiarism detector is also a good idea as it can ensure your writing is truly original.