Plagiarism checker & AI detector trusted worldwide

Explore bravely, try new things, learn from mistakes, improve, and grow. Excellent academic writing is our promise to you.
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Multilingual
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Artificial Intelligence technology
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4.5 on Trustpilot
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Trustpilot
Why choose us?

Confidential. Precise. Fast.

Plag invites academic community to avoid plagiarism, correct their papers, and achieve the best results without being afraid to experiment.

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Trusted globally

Our plagiarism checker is loved by our users. Therefore, we have more than 6,000 reviews on Trustpilot, with the overall evaluation being ‘Excellent’.

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Database of scholarly articles

Our users can compare their documents with the largest database of scholarly articles from the best-known academic publishers.

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Supporting 129 languages

We are fully multilingual and so are our algorithms. Our plagiarism checker supports 129 languages.

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Free for educators

We are happy to offer our plagiarism checker for free for education purposes. We invite teachers, lecturers, professors from schools and universities worldwide to use our plagiarism checker pro bono.

Features

All features in one plagiarism detector

We detect almost all types of plagiarism
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Copy-paste plagiarism
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Improper references
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Paraphrasing
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Benefits

For students

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Achieve outstanding papers effortlessly with our service. We go beyond simply identifying instances of plagiarism in your work at no cost. Our team of skilled editors is also available to provide the necessary improvements, ensuring your paper reaches its full potential.

  • Free plagiarism check & similarity scoresDistinguish us from the rest of the plagiarism checkers by our commitment to a complimentary initial plagiarism detector service. With us, you can effortlessly evaluate the plagiarism scan results before making a decision on whether to invest in a comprehensive originality report. Unlike many others, we prioritize your satisfaction and provide transparency in the process.
  • Text similarity report with sourcesWith our plagiarism tool, you'll receive convenient source links that correspond to the highlighted sections in your document. These links enable you to carefully review and rectify any inappropriate quotations, words, or paraphrasing.
  • Database of scholarly articlesAlongside our expansive open database, we provide you with the option to cross-reference your files against our extensive collection of scholarly articles. Our database boasts over 80 million articles sourced from renowned academic publishers, ensuring comprehensive coverage and access to a wealth of scholarly knowledge.
Benefits

For educators

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Embrace authenticity and originality as the defining qualities of your teaching style. Count on our unwavering support as we provide you with free, cutting-edge plagiarism prevention software. Together, let's empower your students through education.

  • Free plagiarism check for teachers, professors, and lecturers Recognizing the limited access to professional plagiarism checkers among teachers, lecturers, and professors worldwide, we have developed a free plagiarism checker exclusively for educators. Our comprehensive offering not only includes essential plagiarism checking but also provides various methods to proactively prevent plagiarism. We aim to empower educators globally by equipping them with the necessary tools to maintain academic integrity and foster originality in scholarly work.
  • Real-time search technology Our plagiarism scanner possesses the remarkable capability to identify similarities with papers published as recently as 10 minutes ago on popular websites. This highly valuable feature empowers users to effectively compare their documents with newly published articles, ensuring up-to-date and comprehensive plagiarism detection. Stay at the forefront of academic integrity with our cutting-edge technology.
  • Database of scholarly articlesAlongside our expansive open database, we provide you with the option to cross-reference your files against our extensive collection of scholarly articles. Our database boasts over 80 million articles sourced from renowned academic publishers, ensuring comprehensive coverage and access to a wealth of scholarly knowledge.
Testimonials

That's what people say about us

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Muhammad Nesar Ahmed

March 15, 2024

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this tool is very useful.also, the name is very attractive. these guys are doing really good job
Joelle Zakaria Baroud

March 12, 2024

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great engine and such an efficacy tool
E Yokesh

March 12, 2024

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This site is solely helpful for me to identify the plagiarism in my thesis.
Sõlõmôñ Múshîlí Sãlãmbâ

March 11, 2024

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This is amazing and very helpful educational wise, easy to use and less time consuming
Űñįqűę Bőỹ Ñįț

March 9, 2024

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its really good tool to use to detect our plagiarism
Abhinav Venkataramani

March 9, 2024

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it is good and very helpful
Alhamdu Jax Funom

March 4, 2024

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Programme is an efficient tool for checking plagiarism. It has made my writing work easy and fast.
Subramanian Natarajan

February 23, 2024

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Good checker , user friendly , easy understand
Sabutay Seferov

February 23, 2024

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I used your program and I think it is good
Mustapha Khalid Gama

February 14, 2024

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Programme is an excellent tool that can help academic researchers to carry out their responsibilities and researches efficiently.
Ankit Acharya

February 14, 2024

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A really useful tool for students and researchers. It helped me avoid plagiarism in my thesis report.
Fanni Miklósy

January 23, 2024

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Plag really helped me during my thesis, where it was essential to check my work beforehand. Plag pointed out my mistakes and possible similarities, that's why I could hand in my work without worrying.
Marc Rams I Ríos

January 19, 2024

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pretty useful!!
Mohamed Tarawally

January 15, 2024

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Plag.ai is the best tools to use
Lilla Ábrahám

January 15, 2024

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Plag helped me with plagiarism checking. With this contribution I was able to spare time regrding my university work and convincing my professors of my writing skills.
Ganindu Deshapriya

January 14, 2024

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this is a good application
Mahinoor Islam Remel

January 11, 2024

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This is a good way to help student ..
Tira Diandra

January 8, 2024

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i like that it easy to use. its very intuitive and the process it self does not take a lot of time.
Jess Deeley

January 7, 2024

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the best plagiarism checker online at the moments. It is easy to use and cheap, even when you haven't paid anything yet it will tell you what percentage your similarity it is, better than most.
Mahesh Raj Chaudhary

January 3, 2024

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I found it very useful.
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FAQ

Questions and answers

Plag is a leading online platform dedicated to detecting and preventing plagiarism, ensuring the authenticity and originality of written content. Powered by advanced algorithms and extensive databases, our platform scans texts for similarities to internet sources and published materials. We offer a comprehensive set of features, including plagiarism removal and grammar checking, designed to enhance the quality and precision of your writing. Widely trusted by students, teachers, writers, and businesses, our service safeguards against potential legal complications associated with plagiarism, making it an indispensable tool for maintaining integrity in your work.
Our process begins by extracting the text from your file, which is then meticulously compared using our advanced text-matching algorithms. These algorithms conduct thorough scans across diverse databases containing both public and paid access documents. As a result, any text similarities found between your document and the source documents are highlighted for your convenience. Additionally, we calculate the percentage of similar text, known as the similarity score, along with other relevant scores. Finally, an insightful originality report is generated, providing a comprehensive overview of the similarity matches found in your document and the corresponding source documents, accompanied by the associated scores.
Upon uploading your document, it undergoes a comprehensive comparison with our extensive database of publicly accessible documents and scholarly articles. Throughout this process, our text-matching algorithms diligently identify similarities between the words in your document and those present in other texts. The algorithm calculates the percentage of similarity by tallying all the matches, which is referred to as the similarity score. The text matching algorithms not only identify exact matches but also account for matches that may be fragmented across the text. To assess the risk of plagiarism, we focus on the presence of larger continuous blocks of similar text in your document. Even a single significant block of similar text can indicate potential plagiarism. Hence, it is crucial to note that documents with a relatively low percentage of similarity can still be deemed as high risk based on the presence of substantial textual matches.
The detailed report provides two essential features that facilitate a comprehensive analysis of your document. Firstly, it highlights the similarities and matches in different colors, allowing for easy identification and differentiation. This visual representation aids in understanding the extent and nature of the matched text within your document. Secondly, the report grants you the ability to inspect and directly access the original sources of the matched text. This valuable feature enables you to delve deeper into the sources and verify the context and accuracy of the matched content. By effortlessly accessing the original sources, you gain a deeper understanding of the textual connections and can make informed decisions regarding appropriate attribution or necessary revisions.
By utilizing the free check option, you will receive a comprehensive text similarity range, ranging from 0-9%, 10-20%, or 21-100%. This provides you with valuable insights into the level of similarity detected in your document. Additionally, you have the opportunity to easily share the generated similarity report with your educator, facilitating transparent communication and fostering academic integrity. Furthermore, our service offers a real-time plagiarism check, ensuring that you can promptly assess the originality of your content. With this feature, you can proactively identify and address any potential plagiarism concerns, enabling you to make necessary revisions or properly attribute external sources.
We place the highest emphasis on safeguarding the privacy of your personal data and documents. Our commitment revolves around the principle that what belongs to you remains exclusively yours. We strictly prohibit the use of any uploaded documents for copying or distributing purposes in any form. Moreover, your documents are not included in any comparative databases. Your data, along with the contents of your documents, is fully protected by legal measures. Access to this information is limited to you and our authorized employees, solely for the purpose of providing customer support. We adhere to stringent confidentiality guidelines to ensure that your data remains secure and confidential at all times. Your trust in our service is of utmost importance to us, and we take all necessary steps to maintain the privacy and integrity of your personal information.
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Let's perfect your paper together

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Multilingual
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Artificial Intelligence technology
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4.5 on Trustpilot
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