---
id: mac-storage-basics.does-safe-mode-clear-caches
url: https://storagestudio.us/faq/mac-storage-basics/does-safe-mode-clear-caches
category: "Mac storage basics"
subcategory: "Caches, logs and temporary files"
question: "Does starting in Safe Mode clear caches on a Mac?"
alt_questions:
  - "safe mode clear cache mac"
  - "boot safe mode to free space"
  - "what does safe mode do mac"
  - "safe mode apple silicon"
  - "safe boot clears caches"
short_answer: "It checks the startup disk and clears some system caches, which can fix glitches, but frees little space. On Apple silicon, hold power, select the disk, then hold Shift."
tags: ["safe mode", "caches", "startup"]
related: ["https://storagestudio.us/faq/mac-storage-basics/is-it-safe-to-delete-caches-on-a-mac", "https://storagestudio.us/faq/mac-storage-basics/my-mac-wont-start-because-the-disk-is-full"]
applies_to: "all"
last_reviewed: 2026-10-01
---

# Does starting in Safe Mode clear caches on a Mac?

Starting in Safe Mode checks your startup disk and clears some system caches, such as font caches, which can fix odd behaviour. It isn't a storage cleaner, though; any space gained is usually small.

To start in Safe Mode on an Apple silicon Mac, shut down, press and hold the power button until startup options appear, select your startup disk, then hold **Shift** and choose **Continue in Safe Mode**. On an Intel Mac, hold **Shift** right after turning it on. Restart normally to leave Safe Mode.