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Top 21+ Free Online Plagiarism Checker Tools in 2022

Writen by SATISH KUMAR

31 Jan, 2019

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Online Plagiarism Checker Tools

Are you worried about plagiarizing someone else’s work? If yes, then you should check out these free online plagiarism checkers. They allow you to compare two documents side by side and provide detailed feedback on the similarities between them.

Plagiarism is a serious issue for students and professionals alike. There are many ways to commit plagiarism, from copying entire passages verbatim to paraphrasing or summarising without citing sources.

There are many tools available to detect plagiarism, but they come at a price. Some require registration, some don’t offer enough features, and some even charge a fee. In this article, we’ve compiled a list of the top 21+ free online plagiarism checker tools in 2021. We have included both desktop and mobile versions so that you can use it anywhere, anytime.

Turnitin

Turnitin is one of the most popular plagiarism detection tools. It has been around since 2003 and has over 1 million users worldwide. The website allows you to upload your own text as well as any other document (e.g., PDF) and compares it with another document. You get instant results and detailed feedback.

The tool uses a proprietary algorithm that detects similarities between two documents, including formatting, grammar, spelling, and style. Turnitin’s “Smart Check” feature even suggests possible solutions for problems found in the original source material.

There are three types of checks:

Plagiarize – Suggests words or phrases that may have been copied from another source.

Similarity – Finds sentences, paragraphs, and blocks of text that are too similar to the source.

Citation – Checks if the author cited the source correctly.

You can download the app for iOS or Android devices. 

Grammarly

Grammarly is an award-winning writing tool used by more than 30 million people across the world. This tool offers grammar checks, plagiarism checks, and spellcheckers. It also provides suggestions based on your previous usage patterns.

This software can be downloaded for free from www.grammarly.com/downloads. The app supports both iOS and Android devices. Grammarly has a wide range of features that make it one of the best tools to use when you are writing academic papers or essays.

1. Grammar Checker:

The Grammar checker feature in this application helps you identify if there are errors in spelling, grammar, punctuation, and capitalization. 

2. Proofreader:

The proofreading feature in this application will highlight words that need correction. You can choose to fix all the issues or just those that are flagged.

3. Spell Checker:

The spellchecker feature in this application will help you find misspelled words and correct them automatically.

4. Sentence Correction:

The sentence correction feature in this application will suggest different options to improve your sentences.

5. AutoCorrect:

The auto-correct feature in this application will propose corrections based on your past usage habits.

Copyscape

Copyscape is a web-based plagiarism checking service. It detects copied content within websites, blogs, social media pages, etc. You can enter URLs or keywords and get back a report with all matching instances. Some of the features include:

You can also integrate this tool with your existing CMS to ensure that you are not using any duplicate content on your website (or blog).

Dupli Checker

DupliChecker is a simple yet powerful tool that lets you find duplicate texts in multiple files. It works like a search engine which scans through different types of files such as images, videos, audio, etc. and finds out the duplicates. The main advantage of DupliChecker is its ability to scan through all the files at once without having to open them one by one.

The software supports both Windows and Mac OS systems and it can be used for finding duplicated text across various file formats like PDF, DOCX, PPT, XLS, TXT, RTF, HTML.

Copyleaks

Copyleaks is a free plagiarism detector that helps you identify copied content in your articles. It uses advanced algorithms to analyse your text and return a score indicating its similarity to others.

Plagiarism is the use of someone else’s work, words or ideas without giving appropriate credit. Copying other people’s work is unethical and unprofessional, but it happens all the time. Some writers make mistakes by accident, some intentionally copy their competitors’ content.

The most common mistake is not citing sources when writing an article. This means that they have taken the words from another author’s work and failed to give proper attribution. Other forms of plagiarism include copying entire passages verbatim, paraphrasing without citation, and stealing the idea behind a project.

PaperRater

PaperRater is a web-based software that allows you to perform automatic plagiarism checks on your paper or essay. Unlike TurnItIn, PaperRater doesn’t need any specific formatting. All you need to do is add the URL of the target paper and press “Compare,” and the tool will automatically scan it.

The results are displayed in a table with two columns: one for the text copied from the source paper (the original), and another column for the text copied from other sources. The number of times each phrase has been copied is also shown.

To help users identify which phrases have been copied verbatim, the tool provides a list of the most frequently used words, as well as the percentage of total words in the document that these words represent.

PaperRater is available for Windows and Mac operating systems. A 30-day trial is available.

Plagiarisma

Plagiarisma is a cloud-based plagiarism checking platform that lets you check your papers, essays, reports, presentations, etc. against thousands of databases. It includes various built-in databases such as Wikipedia, Google Scholar, Scopus, Amazon, etc. However, the database updates take time and you might not always be able to compare the original version with the latest version. Plagiarisma also has an option where it compares your paper/essay with other students’ works.

The best part about this tool is its ability to detect plagiarism even if there are minor changes in the text. The tool will highlight all instances of plagiarism so you can easily rectify them. You can then either correct or ignore these errors. If you want to avoid detection, you can choose to ignore all detected issues.

You can download the app directly from the website. There is no registration required. 

Plagiarism Checker

The Plagiarism Checkers comes with a very user-friendly interface which makes it easy to understand. It does not provide any customization options either.

It is available in both free and paid versions. The free version provides basic plagiarism checking functionality while the paid version offers more advanced features like multi-language support, adding custom words/phrases etc.

Plagiarism checker for word documents, PDFs, images and websites. The best way to find out if your content has been copied from somewhere else!

SmartMute

SmartMute is a free plagiarism checking tool that focuses mainly on detecting copied content in emails. You can choose between two modes: live (which checks messages while you type them) and offline mode (for those who prefer to work offline). Both modes support multiple languages.

The program has an intuitive interface and it’s easy to use. The application also provides some useful features such as auto-detection of copied text, highlighting and copying the detected words.

It works with all major email clients including Gmail, Outlook, Thunderbird, Apple Mail, Entourage and others. It’s important to note that SmartMute does not detect copied images or other files.

There is a premium version of the software that allows you to view the full history of the checked messages. This feature helps you better track down potential offenders.

Plagium

Plagium is a free plagiarism checker that supports over 100 languages. It is designed for academic purposes only.

It detects copied content within Microsoft Word, Excel, PowerPoint, RTF, HTML, XML and PDF files. It also checks URLs, email addresses, phone numbers, dates, times, titles, subtitles, bookmarks, footnotes, endnotes, tables, equations, figures, charts, diagrams, graphs, images, videos, audio clips, hyperlinks, stylesheets, JavaScript code snippets, CSS code snippets, external links, and much more.

This tool is quite powerful but it does have some limitations. For example, it cannot detect copied images or media files. Also, it doesn’t allow you to add new text into the document.

The application is simple to use. All you need to do is paste your source material into the provided box and click “Check”. A list of plagiarized items will be generated and displayed below the box. Each item includes a link to the original source. You can then open the link and remove the copied content.

There is also a report option where you can export the results to CSV format. You can also save the report as a PDF file.

PlagScan

PlagScan is a free plagiarism scanner that lets you detect copied content in your documents. You can use this tool to check whether your paper contains plagiarized material or not. Also, you can check the same paper using different citation styles.

PlagScan is an easy-to-use and powerful plagiarism detection software for detecting plagiarism in any text document. The program will scan your files and compare them with thousands of online sources (including Wikipedia) for finding out if they are original or not. It can also be used as a reference manager by providing a list of all the websites where the source was found.

You don’t need to install anything to use this software. Just upload your text document and press “Start Scanning” button. After scanning is finished, the program will provide you with a detailed report which shows all the instances of plagiarism.

In addition, there is a “Remove URLs from Text” function that will help you clean up your text. If you want, you can download the scanned documents as well. 

Plagiator

Plagiator is a free online plagiarism checker that lets you check your written work against plagiarism. You just have to paste the URL of the source file into the box provided. The program returns a list of similar passages along with their sources.

This site will allow you to search for information about any topic or keyword in seconds using Google, Yahoo and Bing. It’s also possible to use it as an alternative to Wikipedia.

The best part of this website is that you can create your own custom searches by adding keywords to the search bar at the top of the page. This way, you can quickly find what you’re looking for.

Another useful feature of this website is its ability to identify duplicate paragraphs and sentences. When you paste the URL of a source file into the box, the program will display a list of similar passages with their sources.

You can choose between two modes: quick mode and full mode. In quick mode, you only see the first few pages of results while in full mode, you get access to the entire database. 

Proofread Anywhere

Proofread Anywhere is a free plagiarism detection tool that analyzes your paper to determine if there are any similarities to other pieces of writing. If you want to know how many times your paper has been cited, Proofread Anywhere can help you out. It also supports PDFs, Word docs, and PowerPoint slideshows.

PlagTracker

PlagTracker is an online plagiarism checking tool that provides several features including plagiarism report generation, word count, and more. You can save your results in.txt format to get access to all the data afterwards. PlagTracker also has a free version available for those who are not interested in saving their results.

The service is very easy to use and it is compatible with most browsers. It works by comparing your text against its database of millions of academic papers. The software will then provide you with a list of citations which have been copied from other sources.

This tool allows you to check your text against over 100 million academic articles. It’s also possible for you to add notes to each citation so you can easily keep track of everything.

There is no limit on the number of references you can enter. However, the time required to analyze your text depends on the size of the file. 

Quetext

Quetext is a free online plagiarist detector that enables you to find similar texts across the web. Quetext is highly accurate and reliable because it uses machine learning technology to analyze the context of words and sentences.

How does Quetext work?

Quetext works by analyzing your text in three different ways:

1\. Detecting word similarities, which helps identify whether two or more words are used interchangeably. For example, if you copy-paste an article from Wikipedia into Quetext and search for “Wikipedia”, then Quetext will detect the word similarity between these words.

2\. Identifying sentence similarities, which helps identify when sentences are too similar to be accidental. For example, if Quetext detects that two sentences contain the same words but they don’t seem like they belong together, then it may indicate that they were written by the same author.

3\. Analyzing the context of words and phrases, which identifies whether a phrase appears in multiple places throughout the web. This helps Quetext distinguish between common phrases and unique ones.

Once Quetext has analyzed your text, it will show you the top 10 matches and highlight them in red. You can click on any highlighted match to view the original text where it came from.

If you’re looking for a simple way to check if your content is plagiarized, then Quetext should do just fine.

Plagiarismhunt

PlagiarismHunt is a free plagiarism detector that detects plagiarism within the body of text itself. There are three main ways to detect plagiarism: by keywords, by sentence structure, and by paragraphs. The search engine works best when its algorithms are trained on a large number of samples. Plagiarism Hunt has been designed as an educational tool for students or anyone who wants to check their own work.

The program will scan your written document for words, phrases, sentences, and even whole paragraphs which have been copied from other sources. It’s easy to use and can be used in any language. You can also choose whether you want to compare just one file or multiple files at once.

The website also offers a variety of features such as highlighting the duplicated parts of the text, showing how many times each paragraph was copied, etc. If you think your paper contains plagiarism, then this tool is definitely worth checking out.

ProWritingAid

ProWritingAid is a free online plagiarization checker that allows you to check your paper for plagiarism. It offers automatic and manual checks. You can also export your result to Microsoft Excel or CSV files.

The tool has been developed by the University of South Carolina, in collaboration with the National Writing Project (NWP).

It uses a variety of resources such as Google Scholar, Scopus, PubMed, ProQuest, EBSCOhost, and others to identify instances of plagiarism.

You can use it on any type of academic writing including thesis, dissertation, research paper, journal articles, book chapters, dissertations, conference papers, magazine articles, blog posts, websites, social media content, etc.

You can use it to find examples of plagiarism, duplicate passages, and plagiarize passages in text.

Whitesmoke

Whitesmoke is a free plagiarism software that scans your document for instances of plagiarism. It includes various tools such as plagiarism report generation, keyword analysis, and more.

The program can be used with Microsoft Word, Google Docs or OpenOffice documents. The developers claim it to be the most accurate tool available on the market today. 

Viper

Viperplag is a free online plagiarizer which helps you identify the source of plagiarism. Viperplag identifies the original author and provides a detailed explanation of why the content was plagiarized.

The site also has an option to provide the user with a custom report that will display all the sites where the copied text has been found, along with the number of times each site has been used. The report can be viewed as a PDF or HTML document.

How does it work?

Viperplag works by running your text through its proprietary algorithm, which compares your text against millions of web pages using advanced natural language processing techniques. This means that it will not only find sites that contain your text but also sites that contain similar sentences or paragraphs.

If you’re looking for a plagiarism checker that can help you spot copy-pasted material without having to manually go through every single page, then Viperplag might be what you need.

CheckForPlagiarism.net

This website claims to be the fastest online plagiarism checker available today. However, it does not provide any information about its accuracy. It is a service that checks for plagiarism in your submitted work and provides you with a list of similar works that have been published before. The idea behind this is that if you are writing something original, then chances are that others have written on similar topics before. Therefore, they will find your article or essay similar to one already existing.

DMCA Scan

The DMCA Scanner is a free online plagiarizing tool that finds copies of copyrighted materials. This tool is very useful for those who need to remove copyright from their own websites.

The DMCA scanner can be used by anyone and will find all the sites where your work has been copied. It can also be used to find other types of infringements such as:

Copies of your website on another site

Other people using your images without permission

People posting content from your website without permission

If you are worried about someone copying your work, then the DMCA scanner could be just what you need.

Dustball

Dustball is a free online plagiaristic tool that helps you spot plagiarisms in your papers. Dustball also supports Word, HTML, and PDF formats. It searches for identical sentences and phrases in your document.

A simple way to check whether or not your paper has been copied from another source without using any software. You simply paste the text into the box provided and click on “Check” to see if it’s plagiarized.

Plagiarism Checker is a free plagiarism detection service which checks your work against over 10 million reference sources including Wikipedia, Google Scholar, and other academic databases.

It uses several methods to detect plagiarism, including the use of algorithms, statistical analysis, and manual checking.

Webconf Tool

Webconf Toolkit is a free online plagiarising tool that helps you detect plagiarism. Webconf Toolkit can scan your paper for multiple types of plagiarism including paraphrasing, reusing ideas, copying, and so on. It also has the ability to compare two versions of a text, which makes it easy to see what changes were made in each version.

The best way to use this tool is to upload your files into the system and let it do its job while you are away from the computer. Once it’s done scanning your document, you will be able to view all the results in an easy-to-read format.

Unicheck

Unicheck is a free online plagiarism checker that enables you to check your paper against thousands of sources. Unicheck will automatically detect duplicated sentences, copied passages, and even entire paragraphs. It will also identify the author of your text, and show how many times your words appear elsewhere on the web.

You don’t need to worry about getting caught because Unicheck won’t store your IP address. All of your data remains anonymous. If you want to make sure that no one is stealing your work, then Unicheck is the ideal solution.

Siteliner

 

Siteliner is a free online plagiarise detector that scans documents for plagiarism. Siteliner is designed to work with academic papers, scientific reports, essays, thesis, book chapters, etc. It is easy-to-use and fast. Just enter the URL of the file you would like to check and sit back while Siteliner does its magic.

It will check for duplicate sentences, similar wording, and even whole sections of text. It will also highlight the original source of the material and tell you where else it appears on the web. This way you can easily determine whether or not your work has been stolen.

PlagSpotter

 

PlagSpotter is a free plagiarism checker that helps you detect plagiarisms in your papers and other written material. It has many unique features like the ability to detect plagiarism in images, videos, and audio files. PlagSpotter also provides an option for users to submit their own paper for plagiarism detection.

Frequently Asked Questions (FAQs)

Which is the best online plagiarism checker?

Plagiarism Checker is one of the best online plagiarism tools available today. This tool helps users detect copied text from other sources and provides suggestions for improving originality. The software also allows users to compare two documents side by side and highlight differences between them.

Which is the best plagiarism checker free?

There are many free plagiarism checkers available on the Internet, but not all of them can be trusted. Some of these sites may even have malware or viruses that could harm your computer. That’s why we recommend using a reputable service like Plagiarism Checkers. You can use this tool without any worries because it has been tested thoroughly.

Is there a free online plagiarism checker?

Yes, there are several free online plagiarism checkers available. However, most of them are not safe enough to use. They could contain malicious code that would damage your PC if you download and install them. So, we only recommend using a reliable service like PlagiarismaCheckers.com. It will help you find out whether your content was copied from another source or not.

Is Grammarly plagiarism checker safe?

Grammarly is an excellent plagiarism checker tool. It checks your work against more than 30 reference databases and compares it with similar texts in order to provide accurate results. Users can also choose to get their reports via email.

Are online plagiarism checkers accurate?

No! Online plagiarism checkers cannot guarantee 100% accuracy. Even though they claim to do so, some of them are just trying to make money off unsuspecting people. We strongly advise our readers to avoid using such services.

Conclusion

In conclusion, there are many different tools available out there that allow you to quickly check your work for plagiarism. However, some of these tools require you to pay money to access them. Others are only useful if you have lots of time on your hands.

If you’re looking for something more user friendly and less time consuming, then we recommend using the ones listed above. They are all completely free to use and they should give you enough information to spot any potential problems with your writing.

If you still feel as though you need something more powerful, then you may want to consider purchasing a premium service instead. These services offer much better functionality than the free alternatives.

We hope you found this article helpful! Remember to share it with others who might find it useful too.

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