The CopySpider is a freeware tool to test documents under the existence criterion of undue copies of other documents available on the internet.
A document has copies undue when it suits or transcribed passages from other documents without showing compliance with the standard citation references (bibliography).
The CopySpider was designed to be nimble and precise in identifying similar documents available on the internet.
CopySpider has a Professional version with resources focused on productivity evaluation of a large number of documents (batch processing).
The freeware version serves mainly students and their demands for certification. If your institution is interested in the Professional version, please contact us by email at email@example.com.