Viper is described as 'is the plagiarism checker of choice! It scans over 10 billion resources, has an easy-to-use interface and highlights areas of plagiarism - totally free!'. There are more than 10 alternatives to Viper for a variety of platforms, including Online / Web-based, Windows, Google Chrome, Google Drive - Docs and SaaS. The best alternative is plagramme, which is free. Other great apps like Viper are Unicheck (Paid), iThenticate (Paid), PlagiarismSearch (Paid) and Oxsic - Oxford plagiarism checker (Paid).
Novus Scan is a tool for teachers, editors and writers, enabling you to find text that has been copied between documents. Novus Scan will compare text to the documents in your database and show you any matching text.
Plagiarism is a plague for website owners. Its scale is overwhelming. PlagiaShield protects full websites from content theft, not individual documents. Whether your site has dozens or thousands of pages, enter your domain URL and discover all websites copying your content.