SLOCCount consists of a set of tools for counting physical Source Lines of Code (SLOC) in a large number of languages of a potentially large set of programs.

SLOCCount includes a number of heuristics, so it can automatically detect file types, even those that don't use the "standard" extensions, and conversely, it can detect many files that have a standard extension but aren't really of that type.

The SLOC counters have enough smarts to handle oddities of several languages.

For example, SLOCCount examines assembly language files, determines the comment scheme, and then correctly counts the lines automatically.

It also correctly handles language constructs that are often mishandled by other tools, such as Python's constant strings when used as comments and Perl's "perlpod" documentation.