CodeCleaner is a native macOS app that finds hidden developer junk and helps reclaim 50–150 GB of disk space. It scans Xcode DerivedData, iOS Simulators, node_modules, Docker/Colima, Rust/Cargo, Python virtualenvs, Gradle, Go, Homebrew, and IDE caches from VS Code, Cursor, and JetBrains. Includes cleanup tools, build artifact scanning, large file search, duplicate detection, and disk analysis. Free scan, Pro for cleanup.