OpenDisk

What is OpenDisk?

OpenDisk is a utility app for macOS that helps you understand what is using space on your Mac. It scans a drive or folder and presents the results as an interactive sunburst map alongside a sortable file list, making large files and space-heavy folders easy to spot. The app is designed for people who want a clearer view of storage usage before cleaning up caches, downloads, development files, or other bulky data. It also lets you collect files for deletion and review how much space you will free before removing them. OpenDisk is available for Mac, supports both Apple Silicon and Intel systems, and is published as an open-source app with a privacy-focused local workflow.

Key features

• Scan drives and folders to see where disk space is being used.
• Explore storage with an interactive sunburst map of files and folders.
• Browse a sortable file list with live size details.
• Search scanned results to find large or unwanted items quickly.
• Collect files for deletion and review reclaimable space before removing them.
• Surface cache and purgeable space to help with storage cleanup.
• Show scan results as they load so you can start exploring immediately.

Safety overview

Status: Mostly safe

OpenDisk is a legitimate disk analysis tool for macOS. It may request Full Disk Access so it can measure storage use more completely across your Mac, which is normal for this type of app. Because it can see file and folder sizes across much of the system, only grant that access if you want full-drive analysis, and review anything you choose to delete before confirming removal.

Recommendation: Keep OpenDisk if you use it to manage storage or regularly check what is filling your disk. If you no longer use it, you can remove it like other Mac apps; doing so only affects its scanning and cleanup features.

Common paths

• /Applications/OpenDisk.app

Related apps

• DaisyDisk

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