Simian is described as 'Identifies duplication in Java, C#, C, CPP, COBOL, JSP, HTML source code and even plain text files' and is an app. There are 2 alternatives to Simian for Windows, Linux and Mac. The best Simian alternative is Checkstyle, which is both free and Open Source.
Checkstyle is a development tool to help programmers write Java code that adheres to a coding standard. It automates the process of checking Java code to spare humans of this boring (but important) task. This makes it ideal for projects that want to enforce a coding standard.
SolidSDD - The Duplicate Code Detector is an application for finding and analyzing duplicate code (i.e., code clones) in C/C++,C# and Java.
