OpenDiskSee what fills your disk. Free space safely.

An open-source disk cleaner for developers and AI/ML users, and for everyone else too. No telemetry, no accounts, no network.

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Finds the hidden space

Scans ~/Library and dot-folders like ~/.cache, ~/.npm and ~/.gradle, which Finder doesn't show, and draws them on a disk map.

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61 rules for Xcode, simulators, npm, Gradle, Cargo, pip, uv, conda, Hugging Face, Ollama, GPT4All, LM Studio, Docker, Homebrew and more.

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Items go to the Trash with an undo journal. Only caches a tool rebuilds on its own can be deleted directly, and only if you ask.

🛡️

Every item is checked against its rule and a hard denylist, and re-checked right before cleaning. Symlinks are never followed.

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Sizes are real allocated blocks with hardlinks counted once, and the space freed is measured on the disk afterwards.

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No network access, no telemetry. The desktop app can only call a short list of commands, and everything stays on your Mac.

OpenDisk findings