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PlagiarismCheck.org — check for plagiarism & AI with an accurate tool and be sure your texts are safe. Use grammar checker to fix grammar mistakes.
Listing updated:May 20, 2025
Works with:
33M+
Overview
Check ✅ your texts for plagiarism & AI fast and easy right in Google Docs™!  Enhance your writing skills by making sure your texts are original, and using a built-in powerful grammar checker.

A modern user-friendly tool to check plagiarism and detect AI in your documents in no-time. 
See what sentences are potential plagiarism with a source or potentially AI-generated. Correct the findings and polish your writing with a grammar checker to submit your best work.

How to check for plagiarism in Google Docs:
- Install PlagiarismCheck add-on for Google Docs
- Launch it in Extensions → PlagiarismCheck → Start
- Click “Proceed” to get your text checked in a few moments
- Should you need to compare similarity to a source or download a pdf report - click “Open report” 

⚠️ Important
- If an add-on doesn’t start, and you see an error related to a Google Drive — probably you are signed in in many Gmail accounts which block the add-on. Consider signing out to use the one you installed our add-on from, or open the document in an Incognito.
- If you see the “Not enough pages” message, it means that to check your text, you need to top up your balance in our tool. Every check withdraws pages from your balance (1 page = 275 words). To add more pages, click “Buy more pages” or follow this link  https://plagiarismcheck.org/prices/?individual=.

PlagiarismCheck.org service was created in 2011 as an assistance tool designed for college students and teachers. Since the day it was launched, PlagiarismCheck.org has served hundreds of thousands users worldwide.

An accurate plagiarism check Google Docs is a useful tool that helps you to make sure you didn’t use someone else’s words. AI detector google doc allows you to see if a document contains AI-generated text. Get the most from your work by keeping it original and authentic, and brush-up your writing skills.

The Mechanics: How It Works

Upon scanning an uploaded document for plagiarism, our service provides users with detailed reports, containing detailed information about the sources which might be plagiarized, or were cited incorrectly. With such reports, you will be able to easily eliminate plagiarism from your paper.
Mission Statement

PlagiarismCheck.org was founded by the idealists believing that every person creating written content — be it for school, work, or for fun — should have equal opportunities in accessing anti-plagiarism software.
We keep updating our products to meet the expectations of our users. We are dedicated to excellence and always make sure that our anti-plagiarism engine provides only the most accurate results for a fair fee. This way, we maintain our reliability and usefulness to our customers.

We believe that deliberate plagiarising is unethical and unacceptable. Unfortunately, there is always a chance of unintentional plagiarizing. We believe that any person in the academic environment should have the possibility to insure themselves from it. In order to protect yourself from unnecessary accusations and always stay on the safe side, we recommend you using our anti-plagiarism software.

Ethical Statement

PlagiarismCheck.org neither respects, nor promotes academic dishonesty in any way. Be it academic environment or elsewhere, our engine is meant to be used for ensuring the originality of written content, and for preparing it for submission. If our engine is used for cheating purposes, all responsibility rests on the user.

We respect the privacy of our users, so we guarantee that none of the information you as a customer provide us is ever disclosed to third-party individuals or companies.

We strive to make our services helpful in the matter of improving the quality of education.Therefore, we fully appreciate and respect PlagiarismCheck.org being used for academic assistance at schools, universities, colleges, and other educational institutions.
Additional information
PricingFree of charge with paid features
Developer
Privacy policy
Terms of service
Check Plagiarism Online in Google Docs will ask for the permissions shown below. Learn more
Check Plagiarism Online in Google Docs will need access to your Google account
This will allow Check Plagiarism Online in Google Docs to :
View and manage documents that this application has been installed in
Display and run third-party web content in prompts and sidebars inside Google applications
Connect to an external service
See your primary Google Account email address
See your personal info, including any personal info you've made publicly available
Reviews
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Amelia Winslow
June 27, 2025
This tool really helping me to show students what is wrong. The PDF report is very easy to understand and show exactly what text is copied. I like that it saves the format of work so I can see the wronged highlighted parts just by a quick look. It even links sources right in file. I recommend for other teachers to try it also.
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fiaz ahmed qamar
June 28, 2025
NEBOSH INTERNATIONAL GENERAL CERTIFICATE UNIT IG1 Week 1: Elements 1 REVIEW QUESTIONS Guide to Review Questions The Review Questions provided as a student resource are designed to test students’ knowledge and understanding of each topic (element by element). They can be used to stimulate discussion in the classroom or provided as a take-home exercise to be completed individually. The Review Questions are based on the Study Questions contained in the RRC Course Book. Element 1: Why We Should Manage Workplace Health And Safety 1. Why might health and safety not be seen as a priority by the management of an organisation? • Competes with other business aims: Managers aims to meet targets and increased output causing safety practices overlooked • Require time and resources: Long term safety improvements may postpend in favour of short-term achievements or goals • Seen as a cost to business: Management may see Health and Safety Investment equipment training is non-essential expenses especially in tight budget • Ignorance of true cost of injury or illness: Managers did not aware from the true cost of injury or illness which may be bear after occurrence of an accident (compensation, legal penalties, loss of production etc) • Ignorance of legal duties: some managers believe to just meet the minimum legal requirements Ignorance of hazards • Lack of external enforcement if there is not scheduled or recent audit or inspection from enforcement agency safety might or not seem urgent or necessary from the management • Absence of worker engagement or feedback: without employee complaints or reports management might believe there are no safety concern to address. • Pressure from the clients or deadlines: the tight deadlines of production or order may push manager to cut concerns, compromising safety to deliver faster, • Absence of Safety culture: in organization leadership where doesn’t promote safety it’s not valued or enforced at all level • Neglect of safety due to low history of accident or incidents: if there has not been recent accident occurrence in organization management might assume everything is safe and not consider to proactive approach. 2. Define: a) Health The absence of illness or disease particularly in relation to work activities, and may say a state of complete mental physical and social wellbeing is known as health for example asbestos create a health risk, if you inhale asbestos dust, you may cause
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Michael Mangrove
June 13, 2025
As a literature teacher, I’ve seen every creative excuse in the book. PlagiarismCheck.org lets me verify work without judgment. The PDF reports are easy to share with students and parents, and the formatting highlights issues clearly. I especially appreciate being able to open original sources directly from the report itself.
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Daniel Prescott
June 18, 2025
wrote my whole assignment thinking “this is genius” only for this tool to tell me I kinda smashed together three journal articles without properly formatted citations. strict but fair. also, loved that I could open every source right in the report when checking. highly useful, even if humbling.
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Steven Fondren
June 16, 2025
Although it only allowed me 275 words in my 1 trial "page", all 275 words were 100% AI generated. As a Technology Coordinator, I am continually looking for easier solutions for my teachers to help combat the growing misuse of AI tools by students. I was very hopeful for this one at first. However, the report told me that my document had 0% AI generated content. Quillbot gave it an 85%. I am really looking for something that integrates with Google Workspace well AND works. Unfortunately, this just isn't that tool.
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sonia rai
April 4, 2025
This is reliable and fast that accurately detects both direct and paraphrased plagiarism. It's easy to use and great for academic or professional work. They offer a free tier so that's great for users who want to try first before buying.
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Gene M.
June 24, 2025
Really solid tool. It’s fast, easy to use, and gives clear results. Helped me catch both plagiarism and AI-generated content I would’ve missed otherwise. Definitely worth it if you care about originality.
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Maya
April 8, 2025
I’ve been using this plagiarism checker extension for Google Docs, and it’s been a game-changer for my workflow. It integrates seamlessly into Docs, so I don’t have to copy and paste content into another platform. Definitely a must-have for anyone who wants to ensure originality and avoid accidental plagiarism.
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Aanya Mehra
July 2, 2025
Ever try explaining plagiarism to a freshman who thinks rewording Wikipedia is original thought? this plagiarism checker saved me from losing my mind. The side-by-side source view in the PDF makes it foolproof. Now students self-check before submission, and I spend less time playing detective and more time actually teaching
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umar saleem
March 4, 2025
Tried their free page, and it worked great! It’s perfect for a final check on any text with lots of quotes, references, or a bibliography. It catches typos and accidental plagiarism while recognizing adequately formatted citations, so nothing gets flagged unfairly. My writing feels next-level now, 100% unique, and way better. Think of it like Grammarly but with a much stronger plagiarism checker. Worth it!
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