Best Plagiarism Detection APIs in 2024

What is Plagiarism Detection API?

Plagiarism Detection, also called Plagiarism Checker, is the process of identifying instances where individuals present someone else's work, ideas, or words as their own, typically without proper attribution. It works by evaluating supplied text content and comparing it to a database of existing texts, indicating similarities or instances of plagiarism, and providing the user with a report.

Plagiarism Detection is useful for educational institutions, publishers, and companies seeking to assure the originality and integrity of information in a variety of situations such as: academic papers, articles, or online platforms.  Plagiarism Checker APIs can also be smoothly integrated into a variety of software tools and services.

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Plagiarism Detection APIs Use Cases

You can use Plagiarism Detection in numerous fields, here are some examples of common use cases:

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1. Academic Institutions: Educational platforms and institutions can use plagiarism detection APIs to ensure the integrity of student submissions, such as essays, research papers, and assignments, promoting academic honesty and maintaining the quality of education.
2. Content Creators and Publishers: Content creators, bloggers, and publishers can employ these APIs to verify the originality of articles, blog posts, and other online content before publication, protecting their reputation and avoiding legal issues.
3. Writing Assistance Tools: Writing assistance software can integrate plagiarism detection APIs to provide real-time feedback to users, helping them avoid unintentional plagiarism and improve the quality of their writing.
4. Research and Academic Journals: Academic journals and research publications can use these APIs to ensure the originality of submitted research papers, maintaining the integrity of their publications.
5. Legal and Compliance: Legal professionals and organizations can utilize plagiarism detection APIs to verify the originality of legal documents, contracts, and regulatory submissions.

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Best Plagiarism Detection APIs on the market

While comparing Plagiarism Detection APIs, it is crucial to consider different aspects, among others, cost security and privacy. Experts at Eden AI tested, compared, and used many Plagiarism Detection APIs of the market. Here are some actors that perform well (in alphabetical order):

• Copyleaks
• OriginalityAI
• PlagiarismCheck
• PlagiarismSearch
• ProWritingAid
• SmallSeoTools
• Smodin
• Unicheck
• Winston AI

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1. Copyleaks

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Copyleaks' plagiarism checker utilizes AI technology to accurately detect various types of plagiarism, including text that has been potentially plagiarized or paraphrased. With a high confidence rate of 99.1% and a false positive rate of 0.2%, it provides detailed and precise findings within seconds.

With its simple API, you can detect several types of paraphrasing, perform image-based text plagiarism, and detect source code plagiarism. It generates extensive reports, noting similarities and providing links to the sources, allowing users to take appropriate action to maintain the quality and originality of their content.

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2. OriginalityAI - Available on Eden AI

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Originality.ai is designed by a team of content marketing and AI professionals who have a thorough understanding of the requirements. By focusing their solution on the world of Web Publishers, they are able to provide the most accurate AI content detector and Plagiarism Checker that your team will want to use. You may scan your complete website to determine the likelihood of your site being included in future Google AI upgrades.

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3. PlagiarismCheck

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PlagiarismCheck.org's plagiarism checker is a tool for comparing texts for similarities and obtaining an exact originality percentage result. You may upload the document in any format (PPT, PDF, TXT, DOC, and others). Following the submission of the document, the similarity checker will swiftly evaluate each sentence of your text for plagiarism issues.

They have over 200000 users and over 15000000 checks. In addition to the API connectivity, they offer ready-made solutions for Google Classroom, Moodle, and Canvas to make plagiarism detection more accessible and simple to use.

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4. PlagiarismSearch

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PlagiarismSearch's plagiarism checker utilizes advanced algorithms to accurately detect instances of plagiarism in your text. It supports multilingual plagiarism detection, making it suitable for a wide range of languages. It compares your content against a vast database of over 25,000 magazines, newspapers, journals, ensuring comprehensive coverage.

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5. ProWritingAid

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ProWritingAid's plagiarism checker compares your work against a vast database of over a billion web pages, published works, and academic papers. This comprehensive search helps ensure the originality of your content.

It highlights all your content that is an identical replica of someone else's work and allows you to see where you've used it. It displays your proportion of similarity to another's work to assist you in determining where you need to improve your paraphrasing or use of quotations.

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6. SmallSeoTools

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SmallSeoTools plagiarism checker employs Deep Search Technology to determine the authenticity of the text. They provide immediate findings and a full analysis of plagiarized words, sentences, or sections that will enlighten you on the specks of duplication in your text.

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7. Smodin

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Smodin's plagiarism checker is one of the world's most popular multi-lingual plagiarism checkers, supporting more languages than any other plagiarism checker in existence. It works by searching the internet database for potential plagiarised sources to determine if the content is unique or plagiarized. The API has a million users and also includes citations and bibliography information for plagiarized sources automatically.

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8. Unicheck

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The Unicheck Plagiarism Checker allows for the easy integration of powerful plagiarism detection into websites, educational systems, and applications. Users can scan various forms of content, receive complete reports, and ensure content validity. It's a critical tool for academic institutions and enterprises to avoid plagiarism and maintain content integrity because it has access to a large database.

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9. Winston AI - Available on Eden AI

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Winston AI's plagiarism detection service is a highly accurate solution, boasting a 99.98% accuracy rate. With an advanced AI detection system, it provides precise assessments and a detailed sentence-by-sentence AI prediction map to effectively highlight potential instances of plagiarism. The platform supports various file types and formats, making it a versatile tool for content creators, educators, and students.

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Performance variations of Plagiarism Detection API

Plagiarism Detection API performance can vary depending on several variables, including the technology used by the provider, the underlying algorithms, the amount of the dataset, the server architecture, and network latency. Listed below are a few typical performance discrepancies between several Plagiarism Detection APIs:

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• Accuracy: The accuracy of plagiarism detection can vary among different APIs. Some APIs may have more sophisticated algorithms and larger databases, leading to higher accuracy in identifying instances of plagiarism or content duplication. Lower-quality APIs may produce more false positives or false negatives.
• Supported Languages: The languages supported by the API can vary. Some APIs are specialized in certain languages, while others offer broader language support. Choose an API that aligns with the languages used in your content.
• Security and Privacy: Consider the security and privacy features provided by the API provider. Ensure that the API complies with data protection regulations and offers secure data transmission and storage, especially if you are handling sensitive or confidential content.

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Why choose Eden AI to manage your Plagiarism Detection APIs

‍Companies and developers from a wide range of industries (Social Media, Retail, Health, Finances, Law, etc.) use Eden AI’s unique API to easily integrate Plagiarism Detection tasks in their cloud-based applications, without having to build their solutions.

Eden AI offers multiple AI APIs on its platform among several technologies: Text-to-Speech, Language Detection, Sentiment Analysis, Face Recognition, Question Answering, Data Anonymization, Speech Recognition, and so forth.

We want our users to have access to multiple Plagiarism Detection engines and manage them in one place so they can reach high performance, optimize cost, and cover all their needs. There are many reasons for using multiple APIs :

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• ‍Fallback provider is the ABCs: You need to set up a provider API that is requested if and only if the main Plagiarism Detection API does not perform well (or is down). You can use the confidence score returned or other methods to check provider accuracy.
• ‍Performance optimization: After the testing phase, you will be able to build a mapping of providers to optimize performance by selecting the right provider for each field (one provider for the payer, one for dates, one for amount, etc.) Each data that you need to process will then be sent to the Best Plagiarism Detection API.
• ‍Cost - Performance ratio optimization: You can choose the cheapest Plagiarism Detection provider that performs well for your data.
• ‍Combine multiple AI APIs: This approach is required if you look for extremely high accuracy. The combination leads to higher costs but allows your AI service to be safe and accurate because Plagiarism Detection APIs will validate and invalidate each other for each piece of data.

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How Eden AI can help you?

‍Eden AI has been made for multiple AI APIs use. Eden AI is the future of AI usage in companies.

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• Centralized and fully monitored billing on Eden AI for all Plagiarism Detection APIs.
• Unified API for all providers: simple and standard to use, quick switch between providers, access to the specific features of each provider.
• Standardized response format: the JSON output format is the same for all suppliers thanks to Eden AI's standardization work. The response elements are also standardized thanks to Eden AI's powerful matching algorithms.
• The best Artificial Intelligence APIs in the market are available: big cloud providers (Google, AWS, Microsoft, and more specialized engines).
• Data protection: Eden AI will not store or use any data. Possibility to filter to use only GDPR engines.

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You can see Eden AI documentation here.

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Next step in your project

The Eden AI team can help you with your Plagiarism Detection integration project. This can be done by :

• Organizing a product demo and a discussion to better understand your needs. You can book a time slot on this link: Contact
• By testing the public version of Eden AI for free: however, not all providers are available on this version. Some are only available on the Enterprise version.
• By benefiting from the support and advice of a team of experts to find the optimal combination of providers according to the specifics of your needs.
• Having the possibility to integrate on a third-party platform: we can quickly develop connectors.

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