cloc

Count lines in directory

$ cloc [directory]

$ cloc [file.cpp]

$ cloc --by-file [directory]

$ cloc [archive.tar.gz]

$ cloc --diff [old/] [new/]

$ cloc --csv [directory]

$ cloc --json [directory]

$ cloc --exclude-dir=[test,vendor] [directory]

$ cloc --show-lang

cloc [options] file|directory|archive...

cloc (Count Lines of Code) counts blank lines, comment lines, and physical lines of source code in over 200 programming languages. It analyzes individual files, entire directory trees, and compressed archives, producing summary reports broken down by language or by file.
The tool includes a diff mode that compares two codebases and reports added, removed, modified, and unchanged lines. Output can be generated in plain text, CSV, JSON, SQL, or XML format for integration with other tools and reporting systems.
Written in Perl with no external dependencies, cloc is easy to install and runs on any platform with a Perl interpreter. It correctly handles multi-language files and uses language-specific comment detection rules for accurate counting.

--by-file

Report results per source file

Report per file and per language

Compare two code bases

Output in CSV format

Output in JSON format

Output as SQL insert statements

Comma-separated directories to exclude

Comma-separated languages to exclude

Only count specified languages

Skip files larger than MB (default: 100)

List recognized languages

Suppress progress output

Language, files, blank lines, comment lines, code lines

Does not analyze semantic code complexity. Some edge cases in multi-language files may be miscounted. Supports 200+ languages.

wc(1), sloccount(1)