CopyCatch
- Compares student documents with those available on the user's computer system or from other electronic sources.
- http://www.copycatchgold.com/

WCopyfind
- Software for comparing specific documents for plagiarism.
- http://plagiarism.phys.virginia.edu/Wsoftware.html

MOSS
- Free Internet service for detecting plagiarism in software code from Berkeley.
- http://www.cs.berkeley.edu/~aiken/moss.html

iParadigms Inc.
- Creator of plagiarism detection software.
- http://iparadigms.com/

Glatt Plagiarism Program
- Software to detect plagiarism.
- http://www.plagiarism.com/index.htm

Plagiarism.org
- Online service for preventing plagiarism, deterring scholarly dishonesty and cheating, and raising academic ethics. Detects plagiarized papers by comparing with submitted papers and papers from online term paper mills.
- http://plagiarism.org/

JPlag
- An on-line plagiarism detection program for Java, C, C++ and Scheme programming code.
- http://wwwipd.ira.uka.de:2222/

EVE: The Essay Verification Engine
- Software to detect plagiarism. Free 15 day trial. Download on site.
- http://www.canexus.com/eve/