lizard-complexity

Lizard analyzes source code per function for NLOC (non-comment LoC), CCN (cyclomatic complexity), token count, and parameter count across 30+ languages including C/C++, Java, Python, JavaScript, Go, Rust, TypeScript, Swift, Kotlin (per the [Lizard README]). Default CCN warning threshold is 15.

When to use

• Polyglot codebase where per-language linters give inconsistent complexity metrics.
• Adding a CCN ceiling to CI without buying a commercial scanner.
• One-off audit of "where is the most complex code?" before a refactor.

Step 1 - Install