Which is the best plagiarism Checker? It might be your question of concern. If you’re a writer, student, blogger, editor, researcher, or someone in the vicinity of academics. Then, You have landed on the right page.
Plagiarism could be a little burdensome to tackle as it’s considered to be an unethical practice of imitation which can lead to some serious consequences. At such points of plagiarism, checkers come in handy to smoothen your writing process whenever there’s the suspense of duplicity.
In this post, I’ve handpicked a few free and paid plagiarism checkers after using almost every plagiarism checker available out there. Metrics used to assess a particular plagiarism checker are the degree of accuracy, performance, and ease of use.
It is a list crafted solely with the purpose and experience to lighten your hassle of finding the best plagiarism checker.
9 Popular Plagiarism Checkers (Handpicked)
An efficient plagiarism checker must be able to accurately identify plagiarized content, even if it has been altered or paraphrased.
In this post, I’ve handpicked 9 plagiarism checkers for you after conducting a comparative survey based on their performance, accuracy, and ease of use.
| Sr No | Best Plagiarism Checkers | Rating |
| 1. | Grammarly | 4.8/5 |
| 2. | ProWritingAid | 4.6/5 |
| 3. | Copyscape | 4.9/5 |
| 4. | Quetext | 4.7/5 |
| 5. | Duplichecker | 4.6/5 |
| 6. | Copyleaks | 4.7/5 |
| 7. | Plagscan | 4.5/5 |
| 8. | Unicheck | 4.4/5 |
| 9. | Plagium | 4.3/5 |
If you’re on the go & can’t spare the time to go through the complete list of tools. To make a decision on which one to choose. Then, don’t worry, I got you covered. You can quickly look up CopyScape & Quetext.
1. Grammarly
Overview
If you’ve indulged in any kind of writing whether it be professional, academic, or otherwise. Then, surely you must have heard of Grammarly. It’s basically an AI writing tool that analyzes your writing for grammar and spelling errors. Grammarly enhances your writing by providing writing and proofreading assistance. In addition to it, Grammarly has also embedded a plagiarism checker which comes off as a part of Grammarly Premium.
Grammarly works with amazing convenience as a plagiarism checker. All you have to do is copy-paste the content into the dashboard of Grammarly & it’ll generate a report of your document. Since it isn’t a dedicated plagiarism checker we cannot rely heavily on it in terms of reliability.
Key Features:
- With Grammarly, you can easily give a certain tone and style to your writing & it’ll make your suggestions accordingly to improve upon it.
- Grammarly plagiarism checker allows you to batch your content as per your convenience and categorization.
- It gives you alerts and notifications if it detects something under the suspension of duplicity while you’re writing or editing your document.
Pricing
To access the Grammarly plagiarism checkers you’ve to buy the subscription plan of Grammarly Premium which costs $30 per month. If you’re someone who requires it often then you can go with their quarterly & annual subscription plan of $60 & $144 respectively.
2. ProWritingAid
Overview
If you’ve been a keen user of Grammarly. But if you want to upgrade to a tool with more reliability and features then ProWritingAid would be a great replacement. It gives you an array of tools to add uniqueness and a certain style to your writing in addition to assistance with spelling and grammar errors.
The plagiarism checker of ProWritingAid is more efficient and reliable than Grammarly. It enlists the document into original and non-original subsections & also directs you to the original source of plagiarized content.
Key Features:
- With ProWritingAid you can specify the degree of a certain tone, and remove sticky words, filler words, overused words, etc.
- It works in integration with your browser, Google Docs, Gmail, etc.
- The plagiarism checker of ProWritingAid can check your content in multiple languages & shows different aspects of the report with color distinction.
Pricing
You can use the ProWritingAid plagiarism checker in one of two ways. Either you can buy the ProWritingAid Premium Plus subscription or you can buy the ProWritingAid plagiarism checker individually.
ProWritingAid Premium Plus comes with a bunch of functionalities in addition to its plagiarism checker. It costs $24 monthly & $90 annually. Whereas the independent plagiarism checker is billed based on the number of checks.
3. Copyscape
Overview
If you’re someone who’s on the lookout for a reliable plagiarism checker then CopyScape is for you. Let me tell you why Copyscape is one of the most premium plagiarism checkers available out there. It is a cloud-based plagiarism checker which uses an identification algorithm to check your content for plagiarism against numerous web pages available on the web.
CopyScape works smoothly as a plagiarism checker. All you have to do is copy-paste the URL of the document that you want to check & click on search. It’ll generate the report for you where you can see how much portion is being plagiarized and from where.
Key Features:
- When you open CopyScape, the first thing you’ll notice is the utterly convenient interface.
- CopyScape can check your content against plagiarism in 5+ languages.
- You can download the report of your search & share it with your team members.
- One thing I’ve found interesting in CopyScape is the distinction of color in highlighting different aspects of the report. CopyScape makes it very easy to read the report to improve upon it.
Pricing
CopyScape falls slightly on the expensive side of the spectrum. So, if you’re someone who’s looking for a reliable plagiarism checker and has the budget for it. Then only, you can go for CopyScape. It costs around 20 cents per 1000 words
4. Quetext
Overview
If you’re someone who doesn’t wanna use those popular & commonly used plagiarism checkers but also want a tool with reliability and accuracy. Then, you might want to check out Quetext.
Quetext is a plagiarism checker and citation assistance that uses deep search algorithms to scan your content for plagiarism against numerous content available. It uses contextual analysis, smart algorithms, and word replacement analysis to pick out plagiarized portions of your document and suggest some actionable recommendations.
To check a document for plagiarism all you need to do is copy-paste the content or you can drag & drop the file as well and click search. It’ll generate a report of plagiarism for you stating the instances and sources of plagiarism.
Key Features:
- The interface of Quetext is simple and easy to use. When you open Quetext, it’s one of the few things you’ll notice. I bet.
- Along with a report. Quetext also shows the percentage of plagiarized content in your file. You can download the report into a pdf file & share it with your team.
Pricing
Quetext is available in both free and paid versions. In the free version of Quetext, you can check up to 2500 words. Whereas in the paid version, you get citation assistance and Snippet text in addition to the plagiarism checker. Quetext Pro costs $9.99 per month.
5. Duplichecker
Overview
In the list of ‘not-so-popular yet reliable’ plagiarism checkers, Duplichecker is another versatile tool. It uses deep search algorithms to thoroughly scan your content for plagiarism against the plethora of content available on other pages.
Duplichecker works with simplicity and efficiency as a plagiarism checker. In order to check your writing for plagiarism in Duplichecker. You can copy-paste the content, and the URL of the document or upload the document into it and click on search to generate the report of the document which tells you about the specifics of the content such as percentage of plagiarism, which portion of the document is plagiarized, source of plagiarized content, number of matches, etc.
Key Features:
- Duplichecker allows only 1000 words to check at a time. Unfortunately, you cannot exceed the limit of words.
- Duplichecker is simple to use with a user-friendly interface.
- Duplichecker is an operational plagiarism checker in several different languages.
- Duplichecker Pro removes the limit of words up to 10k.
Pricing
You can access Duplichecker in both free and paid versions. Whereas the paid version of Duplichecker starts from as low as $10 and goes up to $200.
Duplichecker gives you a unique feature through which you can customize your subscription plan as per convenience based on several aspects such as the number of words, number of searches, and many more features.
6. Copyleaks
Overview:
The next on our list is Copyleaks which is a plagiarism checker that is designed to help educators, publishers, and content creators detect plagiarism and copyright infringement. The platform uses advanced AI algorithms and machine learning techniques to scan text-based content and identify instances of text matching, similarity, and duplication.
The platform supports over 100 languages, including English, French, Spanish, German, and many more.
Users can simply upload their content to the platform and initiate a plagiarism scan with just a few clicks. The platform provides detailed reports that highlight instances of plagiarism and similarity, making it easy for users to identify potential issues and take appropriate action.
Copyleaks also provides a range of tools to help users protect their intellectual property and prevent copyright infringement. These include an API for integrating the platform with other applications, a content protection service for monitoring the web for unauthorized use of content, and a legal support team for resolving copyright disputes.
Key Features:
- Plagiarism Scan against the extensive database.
- Compare text allows users to upload and compare two files against each other.
- Monitor the web for any plagiarized content from your website.
- It can scan documents in over 100+ languages.
- Provides AI Grader.
Pricing
Students and individual plans cost you around $9.16/per month while the work plan costs $8.33 per month.
7. Plagscan
Plagscan is a great plagiarism checker that helps businesses within education and various industries that need to ensure text is original and authentic.
It can be accessed by using any web-enabled device and it supports all the common file formats. This tool provides some exceptional features like data access, drag-and-drop file, side-by-side text comparison and downloadable reports, and more.
Plagscan offers various LMS integration options with third-party tools like Canvas and Moodle which helps in data import and export and streamline workflows.
It also helps in assignment grading and feedback management through the commenting tool.
Key Highlights:
- Priced API
- Complete content scan
- Provides document management.
- Offers reporting and statistics
- Third-party integrations.
- Complete Plagiarism report
Pricing
PlagScan charges $5.99 for 17,500 words. The price increases as per the words.
8. Unicheck
Unicheck is quite a simple plagiarism checker that is designed for educational, personal, and business use. This tool provides individuals to make sure what they are writing is original.
It can scan multiple languages, making it a valuable tool for institutions and businesses operating in multilingual environments. The platform supports over 100 languages, including English, French, Spanish, German, and many more.
The platform provides detailed reports that highlight instances of plagiarism and similarity, making it easy for users to identify potential issues and take appropriate action.
You can directly upload your documents as a starting point and then this platform can give a full rundown on similarities, citations, and references.
Key Features:
- Integrations with the office software and LMSs.
- API to build your own integrations.
- AI-driven authorship verification
- Third-party plugins
Pricing
Unicheck charges as per the page. For 100 pages uncheck charges $15.
9. Plagium
Plagium is one of the best plagiarism detection tools that supports educational institutions by ensuring text is cited correctly or it is originally detecting any cases of content duplicated from anywhere on the web.
Users can simply copy and paste their content into the tool, initiate a scan, and receive a detailed report highlighting any instances of plagiarism or similarity. The tool also supports file uploads in various formats, including PDF, Word, and text files.
This tool is capable of scanning content in over 190 languages, making it a valuable tool for users operating in multilingual environments. This ensures that the tool can detect plagiarism across a wide range of content.
Plagium’s reporting feature provides a comprehensive overview of the flagged content, including the percentage of matching text, the source of the text, and a side-by-side comparison of the original and matching content. The report also includes a color-coded similarity index that allows users to quickly identify potential issues.
Key Features:
- Supports over 190 languages.
- provides a detailed report highlighting any instances of plagiarism or similarity in the content.
- Offers to improve their writing skills and avoid plagiarism in the first place.
- Provides a legal support team to help users resolve copyright disputes.
Pricing
The Plagium pricing starts at $9.99 per user per month.
Related Read:
Final Thoughts: Grammarly is the Best Plagiarism Checker In 2025
Finally, we’ve come to the end of this article. I hope you have found what you’ve been looking for. Which is the best plagiarism checker? If not then no issues we won’t let you go without giving you the best plagiarism checker. After which all you have to do is log in to your account and check some of your writings in it.
My Suggestion
- Grammarly: Grammarly combines reliable plagiarism detection with premium writing tools, checking millions of web pages to ensure content originality while improving style.
- CopyScape: It’s a premium plagiarism checker and one of the best available in the market. If you’re a new blogger and want to have a reliable plagiarism checker and have a budget to afford it. Get it, you won’t regret it.
- Quetext: Quetext is a plagiarism checker and citation assistance that uses several methods and algorithms to keep the originality of your document intact.
Let’s consider another scenario. If you’re a new blogger and want to have a reliable plagiarism checker but don’t have a budget to afford premium tools. Then, you can begin your journey with Quetext. Without a second thought.
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