Free Anti-Plagiarism Software

Viper is an easy to use, accurate and free plagiarism scanner for students

Viper will scan through your essay and check it against billions of online sources including:

  • Newspapers
  • Articles
  • Web pages
  • Journals
  • Books

Plagiarism (whether accidental, or intentional) in your work will soon be a thing of the past!

Why should I use a plagiarism checker on my essay?

Any plagiarism found in your work is classed as cheating, and this is taken extremely seriously in the eyes of academic institutions.

Even if you accidentally left something in that wasn't in your own words or forgot to quote a reference, it could jeopardise your studies and possibly your future career.

Our plagiarism software, Viper, will put an end to any traces of plagiarism from entering your work. It's free to use and only takes a few minutes for a plagiarism report to be generated.

Viper is free to use by students and teachers alike. If you're a teacher, then our plagiarism software will also check your students' work against billions of online sources to ensure that your students’ are producing original work.

Want to know more? Check our terms and conditions

Why use Viper's plagiarism software and not Turnitin's?

With Viper's plagiarism software, you'll never have to pay a fee to use it. That's right, being a student can be expensive so this is one less expense you'll have to worry about. Have a look at the table below to see all the benefits that Viper has to offer.

Over 10 billion scanned documents

Experience and improvements built up over time providing improvements to our products



Work never resold

Your work is never sold to other students



Unlimited Resubmissions

Submit your revised work as many times as you like no matter the length or size



Links to matching resources

Links to the articles that your work shows matches with. See the problem for yourself



Completely Free

All the scans you could need, absolutely free



Viper Anti-Plagiarism Software