CleanDevMac

curl -sSL https://github.com/cleandevmac/cdm/releases/latest/download/cdm | bash

CleanDevMac, cdm on the command line, scans a Mac for what development quietly leaves behind. It shows you each item and its size, then removes only what you approve. There’s nothing to install: the script runs straight from the pipe and leaves nothing on the machine when it exits. Add -s -- -n to the command for a dry run that deletes nothing.

It started as part of setup-zsh and grew into its own project.

What it cleans

• Build and package caches: Xcode DerivedData, Go, npm, pnpm, Yarn, Gradle, Maven, Cargo, pip, uv and more
• Electron and browser caches for VS Code, Slack, Chrome, Brave, Edge, Arc, Firefox and others
• Project junk such as node_modules, dist and target, but only when the repository itself git-ignores it (opt-in with -p)
• Docker and Podman leftovers (opt-in; named volumes are never touched)
• Support files, caches and preferences from apps you’ve already deleted

Safety

• Nothing is deleted without an itemised confirmation.
• Caches are removed for good because they rebuild themselves. Orphaned app data and git-ignored files go to the Trash instead.
• ~/Documents, ~/Desktop, ~/Downloads, ~/Pictures, ~/.ssh and iCloud Drive are never touched, whatever the rules say.
• .env files are never offered for deletion.
• No telemetry. The only network request fetches its own cleaning rules.

Support

Found a bug or have an idea? Open an issue on GitHub.