CommonJS module tree shaker. common-shakeify analyzes your project's CommonJS module dependencies during a browserify build to eliminate dead code. By tracing import and export relationships, it finds unused code and removes it from the final bundle, shrinking the overall size, especially beneficial for large libraries or when only using parts of a module. Greatly improves performance by ensuring that only required modules are included in the final output. Optimizes by statically analyzing the code before compilation.