Plagiarism checkers
Looking for fast, free and accurate plagiarism checkers? Look no further. Viper is a reliable, accurate and free plagiarism checker that checks your essay, dissertation or coursework against millions of sources including:
- All essays, dissertations and documents that have been previously scanned by our users
- Millions upon millions of online web pages
- Millions of online journals, books and other electronic sources
- Your own document library (optional)
Simply download Viper here and choose your options later.
What about other plagiarism checkers?
There are loads of other plagiarism checkers around and you're probably wondering which one to choose. Why not simply give Viper a try? If you don't want to scan an essay or pay for a subscription just yet, that's okay, just pick the free option and scan an old essay or piece of coursework. Or, copy and paste from a number of websites into a Word file and watch how Viper picks up the plagiarism.
Viper has loads of additional features that other plagiarism checkers don't have - for example, Viper allows scanning against a local database of documents so you can make sure you didn't accidentally include material from a previous essay. Viper also allows resubmission - as many times as you like - whereas services like 'Writecheck' allow only one resubmission, make you pay per paper, and don't actually show you where the plagiarism is. That's because they're not plagiarism checkers, they're just referencing checkers, as their website explains. Download Viper here.
How do you use my essay?
We keep a copy of your essay in our database so other users (including yourself) can check against it in the future. They'll never see your actual essay but just a percentage match if their work includes the same content as yours. This helps make Viper more accurate as you'll include material from books and journals that Viper wouldn't otherwise have access to.
We also ask that you allow other students to read your essay, a minimum of 9 months after you make your scan, to help them with their studies. We're very transparent about how we use essays, unlike other plagiarism scanners who have been found to just take your essay and profit from it - even when you've paid to use the software! Download Viper here.