About Viper
Viper is an online plagiarism checking and AI detection app that works through any standard web browser. Originally built as software for Windows, Viper moved to an online app in 2017 and was vastly improved and simplified. As one of the first online plagiarism checkers, Viper has become the application of choice for students and institutions looking for a cost-effective solution to make sure their submitted work is plagiarism-free and not AI-generated.
Viper is no longer available as a downloadable software application!
If you have an older version of Viper installed, it will no longer function. We recommend that you uninstall any older versions of Viper as these are no longer supported. Please do not install any "free download" versions of Viper you may find on freeware and shareware sites - none of these applications are supported by Viper and may contain malicious scripts.
Viper Online
In early 2017, Viper transformed into an advanced plagiarism checking and AI detection app, featuring enhanced matching capabilities and significantly improved scanning speed and accuracy. Although Viper was primarily developed for university students, it is equally effective at checking for plagiarism and AI-generated content in SEO material, blogs, speeches, or corporate documentation.
As an online app, Viper is accessible to anyone with an internet connection on any platform. You can access Viper with any standard web browser such as Google Chrome, Microsoft Edge, Firefox or Safari. Once you log into the application, you will see options for free and paid scans. Users of the older Windows software may be familiar with the fact that free scans are published online after a period of time to help other students with their studies. With a paid scan, we guarantee not to publish your work.
Some of the benefits of the new online plagiarism checking and AI detection app are:
- Cross-platform - you can now use Viper on any PC, Mac or Mobile device
- Improved speed - scans now take an average of 10 seconds to complete
- Improved accuracy - Viper checks against more sources and detects AI-generated content more effectively than ever
- Google Drive integration - You can now upload your documents directly from Google Drive
- Online support - Full support available via LiveChat and Email (Paid scans only)
- Support for multiple languages - Document checking for most Western European languages, including English, Spanish, French and German
Log in now to start checking your documents for plagiarism and AI-generated content:
Credits
Viper uses a flexible "credit" based system, with each credit allowing you to scan up to 250 words for plagiarism and AI-generated content. Credit bundles are available in packages of 10, 20, 50, 100, 200, and 500 credits, with bundles of 10 credits (covering 2,500 words) starting at just £1.25 under our introductory pricing. The more credits you purchase, the cheaper each credit becomes. If you require more than 500 credits, please contact our online support staff for a bespoke quotation.
All payments are processed via Stripe, and your confidential payment information is securely held only by these providers—no payment details are stored by our site or application.
Payments are accepted in GBP.