TL;DR
To clean junk files on Mac:
- Open Storage settings and review large files and apps.
- Delete only personal files you recognize and no longer need.
- Leave system logs, caches, and app-support folders alone unless an app’s instructions say otherwise.
Documentation review ✅: This update was checked against the linked Apple Support procedures; no new hands-on test was performed.
A full drive can leave less room for downloads, updates, and app work. Start with macOS Storage settings, then remove personal files you recognize and no longer need. Deleting caches or logs is not a general speed fix.
What Are Junk Files on Mac?
“Junk files” is an informal label, not a macOS category. Caches, logs, and app resources may still serve a purpose; review files before deciding what to remove.
- 🗂️ Cache files: Apps use these working files; let the app manage them unless its own instructions say otherwise.
- 📜 Log files: Help apps and macOS record events and diagnose problems; avoid deleting them by folder name.
- ⏳ Temporary files: May support downloads or updates. Remove them only through the app or macOS controls that identify them.
- 🌐 Language resources: App bundles may include resources for multiple languages; do not remove .lproj folders by hand.
- 📑 Duplicate files: Copies can use storage, but compare their contents and locations before deleting either one.
Did You Know? Caches are working files that apps may recreate. Clearing them can remove offline data or make an app rebuild files, so there is no need to clear them on a schedule.
How to Clean Junk Files on Mac
How We Check Our Guides We use Apple’s support documents and current developer instructions to check the steps. Screenshots and menu names can differ between versions, so follow the branch for your Mac. Read our editorial process.
Use these methods to review storage and remove files you recognize:
1. Review Storage settings
Open the built-in storage view first. It shows how much space is available and lets you review files by category.
- On macOS Ventura 13 or later, choose Apple menu > System Settings > General > Storage. On macOS Monterey 12, choose Apple menu > About This Mac > Storage.
- Review Recommendations and categories such as Documents and Applications. Open a category and inspect each item; use Show in Finder to confirm its location.
- Delete only files you recognize and no longer need. Move them to the Bin first and empty it only after checking that you do not need to restore anything.
Storage labels and recommendations vary by macOS version. Check each recommendation before enabling it. See Apple’s Storage settings guide.
2. Clean up with MacKeeper (optional)
Optional paid tool
MacKeeper is an optional tool for reviewing files a scan flags; it does not guarantee a speed improvement. MacKeeper offers an easy Safe Cleanup feature to do this in just a few clicks.
Here’s how to use Safe Cleanup to delete junk files and declutter your Mac:
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- Download and install MacKeeper on your Mac.