Plagiarism checker & AI detector trusted worldwide
Your files are never added to any comparative database and are never shared with other plagiarism checkers.
1.6 M Students
Uploads per year
Multilingual AI Detector
- ✓50+ languages supportedDetects AI in local-language texts, not just English
- ✓Full document score — freeGet your overall AI probability score at no cost
- ✓Sentence-level breakdownSee exactly which sentences flagged as AI-generated
- ✓Downloadable PDF reportShare or submit proof of originality instantly
- ✓Upload any formatWord, LibreOffice, Pages, PowerPoint, or plain text paste
- ✓Expert humanization serviceOur team rewrites flagged content to sound natural and polished
- ✓Privacy firstYour documents are never shared with institutions or third parties
Multilingual Plagiarism Checker
- ✓100+ languages supportedDetects plagiarism in local-language texts, not just English
- ✓Full document score — freeGet your overall plagiarism score at no cost
- ✓Downloadable PDF reportShare or submit proof of originality instantly
- ✓Upload any formatWord, LibreOffice, Pages, PowerPoint, or plain text paste
- ✓Translated plagiarism detectionCatches plagiarism even when content is translated across languages — exclusive feature
- ✓Expert plagiarism removalOur team helps rewrite flagged content to make it fully original
- ✓Privacy firstYour documents are never shared with institutions or third parties
How can we help?
Check it. Fix it.Submit with confidence!
Check your paper and get up to three free evaluations: plagiarism, AI, and translated plagiarism. Our team of experts will help you cite sources correctly, fix plagiarism issues, and, if needed, make your text sound more natural.
More sources. More precision.
Our database of scientific articles and web sources, built over many years of work, helps detect text matches more accurately and ensures more reliable plagiarism checks.
Support for 100+ languages
Our app supports not only major languages like English, Spanish, and French, but also 100+ languages for plagiarism checks and 50+ for AI text detection.
Trust and privacy
Plagramme is valued by both students and educators. However, your work remains yours alone: we do not share it with teachers, schools, or anyone else. We have been protecting your privacy since 2011.
Value
For students
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 articlesIn addition to open databases, we offer the option to check documents against our scholarly article database. This database contains more than 80 million scholarly articles from the world's best-known academic publishers.
Value
For educators
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 articlesIn addition to open databases, we offer the option to check documents against our scholarly article database. This database contains more than 80 million scholarly articles from the world's best-known academic publishers.
Testimonials
That's what people say about us
Mustafa Sadiq
December 27, 2025
Robert Tindall
October 21, 2025
Damjan Koneski
October 13, 2025
Siva Ramakrishna
September 2, 2025
Moses Madaki
August 20, 2025
Sjava Mjamero
August 19, 2025
Kyla Cabral
July 28, 2025
Jana Ivanović
May 22, 2025
May Ngariany
March 8, 2025
Тетяна Лисенко
March 7, 2025
FAQ
Questions and answers
What is Plag?
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.
How is the similarity check performed?
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.
How do we count the 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.
Plag text similarity report
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.
What do I get for free?
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.
How can I be sure that my documents will not be leaked, copied or included into comparative databases?
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.
How can I contact customer support?
We offer live chat support staffed by human agents for clients who have paid for our services. Additionally, our helpdesk, accessible through the left navigation menu, collects comprehensive information about all our services. In some markets, an AI assistant is available for support as well.
What is Plag?
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.
How is the similarity check performed?
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.
What free services are available for educators?
By creating an educator's account, you gain the benefit of checking up to 20 documents per month at no cost. It's important to note that there is no limit to the number of documents that can be shared with you by your students. To conserve your allocated limits, you can simply request that students share their papers with you. This way, you can make the most of the free service while efficiently managing your document checks.
How can I get an educator account?
To acquire an educator account, kindly register using your institutional email and upload a supporting document that verifies your position within the institution. Examples of suitable documents include a director's statement, work permit, or any other relevant proof that substantiates your role. This verification step ensures the integrity of our educator accounts and enables us to provide you with the appropriate access and privileges.
Can we create a login for our students?
Indeed, our plagiarism-checking service operates under the principle that user accounts should be created individually by the users themselves. This implies that students are responsible for creating their own accounts. As an educator, you can simply share our link with your students and encourage them to register on the system independently. Once they have registered, they will have full access to the features and benefits offered by our service.
Which databases are included in a teacher's account?
Teacher's account grants the ability to check documents against all of our comprehensive databases.
How can students share with me their similarity reports?
Once a student uploads and checks a document, they can easily share it with you for free. They simply need to click on the share button located on the document card and enter the email address associated with your registration on our platform. This streamlined process allows for seamless document sharing, facilitating effective collaboration between students and educators.
How do I get an invoice for the paid services?
To access your invoices, simply go to your profile settings and click on the "Invoices" tab.
