Viper

Viper 4.100.5942.23351

Free
Viper is becoming the plagiarism checker of choice with r 10 billion resources
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3.5  (20 votes)
4.1.90 (See all)

To avoid plagiarism, you should always reference correctly according to your institution's guidelines and use Viper. Viper is fast becoming the plagiarism checker of choice, rising over and above other plagiarism checkers, with over 10 billion resources scanned and an easy interface which highlights potential areas of plagiarism in your work. Best of all, it's free!

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