Features

Viper offers advanced plagiarism checking and industry-leading AI detection, scanning trillions of resources and supporting over 100 languages. With unmatched accuracy, a user-friendly interface, and detailed, easy-to-understand reports, Viper helps ensure your documents are free from plagiarism and AI-generated content—protecting your integrity and reputation.

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Plagiarism & AI Detection Made Easy

Ready to discover more? Explore our powerful Features now and learn how Viper ensures your work is free from plagiarism and AI-generated content.

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Sources

Scan trillions of resources

Viper scans through an unmatched database of resources for every plagiarism scan, including 16,000+ open-access journals, 60 trillion websites and search engines, 1M+ internal documents (optional), and 20+ code data repositories.

Speed & Accuracy

Rapid scanning with award-winning accuracy

Experience lightning-fast scans averaging just 10 seconds, combined with 99.12% accuracy—the highest standard for plagiarism and AI detection.

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Precise Matching

Detailed plagiarism & AI detection reports

Clearly highlighted matches with full URLs and easy-to-read scores. Detects identical text, paraphrased content, and AI-generated text from Claude, Gemini, GPT-4, ChatGPT, and more.

Simple Interface

Easy-to-use, intuitive design

Our clear and user-friendly interface simplifies your scanning process, giving you easy-to-interpret results instantly.

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Downloadable Reports

Detailed PDF reports

Download easy-to-understand, detailed reports in PDF format, perfect for submission or sharing.

Multilingual Detection

AI & plagiarism checks in 100+ languages

Cross-language detection examines your document for matching text not only in its original language but also across other supported languages. This function allows comparisons against content in more than 30 languages, identifying cases where text may have been translated from another source. For instance, an English document can be checked for overlaps with material originally written in Spanish.

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Multiple File Types

Supports numerous file formats

Scan html, htm, txt, rtf, xml, md, pdf, docx, doc, pptx, ppt, odt, epub, odp, ppsx, pages, xlsx, xls, and many more file types.

Adjustable Sensitivity

Flexible scan sensitivity settings

Choose your preferred sensitivity level to achieve faster reports or deeper analysis, perfectly tailored to your needs.

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Viper Feature Summary

Viper combines industry-leading plagiarism and AI detection features to offer a superior, comprehensive, and easy-to-use checking experience.

Plagiarism Checker Features

  • Scans 60 trillion websites & search engines, including Google & Bing
  • Scans 16,000+ open-access journals
  • Award-winning plagiarism detection API trusted by 1,000+ universities
  • Supports 100+ languages, foreign language cross-checking included
  • Supports various file formats including PDF, DOCX, PPTX, HTML, and more
  • 100% confidential – choose to add or exclude your document from our database
  • Exclude references, quotes, citations, and table of contents from scans
  • Adjust sensitivity for faster or more thorough scanning
  • Option to scan against 1 million+ internal documents and 20+ code repositories
  • Detects identical text, near-identical, and paraphrased content
  • Easy-to-read downloadable PDF report
  • Bulk scan up to 5 files at once

AI Detector Features

  • Best-in-class AI detection accuracy (99.12%)
  • Powered by the world's leading AI-based text analysis company
  • Detects Claude, Claude Opus, Gemini, GPT-4, ChatGPT, and more
  • AI detection supports 30+ languages
  • Simple and intuitive user interface
  • Highly competitive pricing, starting from just 12p/250 words
  • Pay only for what you use – no subscriptions required
  • Bulk and institutional pricing available
  • Ideal for students, schools, universities, businesses, and more
  • Instant quotes for your exact document length and chosen features
  • Ad-free browsing experience
  • Guaranteed confidentiality; your work is never published online