Where Does Dropbox Store Cache on Mac? Find and Clear the .dropbox.cache Folder (2026)

Dropbox silently stashes gigabytes of data in a hidden folder inside your Dropbox directory, and macOS Finder keeps it invisible by default. If your System Data balloon looks inexplicably large, or your Dropbox folder itself is consuming far more space than your actual files should explain, the culprit is almost always ~/.dropbox.cache (officially written as ~/Dropbox/.dropbox.cache). This guide shows you the exact location, explains why it grows so large, and walks through clearing it safely without breaking your sync.

Where Dropbox Cache Is Stored on Mac

The Dropbox cache folder lives at:

~/Dropbox/.dropbox.cache

That tilde (~) means your home folder, so the full absolute path looks like:

/Users/yourname/Dropbox/.dropbox.cache

Because the folder name begins with a dot, Finder hides it by default. It does not appear when you browse your Dropbox folder normally, which is why many users never realize it exists until they run a disk audit.

How to See It in Finder

To reveal hidden files in any Finder window, press Command + Shift + Period. Once you do that, the .dropbox.cache folder becomes visible inside your Dropbox folder. Press the shortcut again to re-hide dotfiles when you are done.

How to Navigate to It in Terminal

Open Terminal (Applications > Utilities > Terminal) and run:

ls -lh ~/Dropbox/.dropbox.cache

To see how much space the entire cache is consuming, run:

du -sh ~/Dropbox/.dropbox.cache

It is not unusual to see 2 GB, 5 GB, or even 10 GB reported here on a machine that has been syncing for a year or more.

Why the .dropbox.cache Folder Gets So Large

Dropbox uses this folder as a local staging area for several operations, each of which adds up:

• Delta sync buffer: When you edit a file, Dropbox holds the previous version locally for a short window so it can compute a binary diff and upload only the changed blocks. Large files (video, Photoshop documents, virtual machines) leave large temporary chunks here.
• Download cache: Files streamed via selective sync or Smart Sync are temporarily written here before being placed in their final location.
• Conflict resolution staging: When two devices edit the same file simultaneously, Dropbox writes both versions locally while it resolves the conflict.
• Deleted-file retention: Dropbox keeps recently deleted or overwritten files in the cache so it can restore them quickly, independent of the version history stored in the cloud. This retention window can be long on Plus and Professional plans.

The folder is supposed to be self-managing, but Dropbox's cleanup logic is conservative. It would rather use your disk space than risk a re-download, so the cache rarely shrinks on its own unless you manually clear it or Dropbox performs an internal purge during a version upgrade.

Is It Safe to Delete the .dropbox.cache Folder?

Yes, with one important qualifier: quit Dropbox before you delete anything.

The cache folder is a working directory, not a permanent store. Nothing inside it is your canonical data. Your actual files live in the main Dropbox folder and in Dropbox's cloud storage. Deleting the cache while Dropbox is running can cause sync errors, file conflicts, or a partial re-download loop. Quit the app first, clear the cache, then relaunch.

Your version history, shared folders, and Dropbox settings are all stored server-side or in separate configuration files and are not affected by clearing this folder.

How to Clear the Dropbox Cache on Mac (Step by Step)

Step 1: Quit Dropbox Completely

Click the Dropbox icon in your menu bar, click your avatar or the gear icon, and choose Quit Dropbox. Wait a few seconds for the process to fully terminate.

You can verify it has stopped by running:

pgrep -x Dropbox

If that command returns nothing, Dropbox is no longer running.

Step 2: Open the Cache Folder

In Finder, press Command + Shift + G to open the Go to Folder dialog. Paste in:

~/Dropbox/.dropbox.cache

Press Return. Finder opens the hidden folder directly.

Step 3: Delete the Contents (Not the Folder Itself)

Select all files and subfolders inside .dropbox.cache with Command + A, then move them to Trash with Command + Delete. Leave the .dropbox.cache folder itself in place. Dropbox expects the folder to exist and recreates its internal structure inside it. Deleting the parent folder is harmless (Dropbox recreates it), but leaving it avoids any unnecessary sync churn.

Alternatively, do this from Terminal in a single command:

rm -rf ~/Dropbox/.dropbox.cache/*

That removes all contents while keeping the .dropbox.cache directory itself.

Step 4: Empty the Trash

Right-click the Trash icon in your Dock and choose Empty Trash. The disk space is not reclaimed until Trash is emptied.

Step 5: Relaunch Dropbox

Open Dropbox from your Applications folder or Spotlight. It will sync normally and rebuild its cache from scratch as you work. Expect a brief period of increased network activity as it re-establishes its sync state.

How Fast Does the Cache Come Back?

The cache regenerates immediately as soon as Dropbox is running and files are being synced. If you have a large Dropbox with many recent edits, several hundred megabytes can accumulate within hours. On accounts with heavy video or design file workflows, the cache can return to multi-gigabyte sizes within a week.

This is expected behavior. Clearing the cache is a periodic maintenance step, not a permanent fix. Many users add it to a monthly disk-cleaning routine alongside clearing browser caches and system logs.

Finding the Dropbox Cache with a Disk Audit Tool

The manual path above works reliably, but the .dropbox.cache folder is easy to miss in day-to-day Finder use because it stays hidden. If you want a whole-disk view that surfaces hidden cloud sync caches automatically, Crumb includes this folder in its storage audit. It shows the folder's current size alongside other hidden caches, flags it as safe to remove, and lets you review the contents before anything is deleted. Nothing runs in the cloud and no account is required.

Whether you clear it manually via Terminal or use an audit tool, the key steps are the same: quit Dropbox first, remove the contents, empty Trash, then relaunch.

Other Dropbox-Related Storage to Check on Mac

While you are investigating where Dropbox cache is stored on your Mac, it is worth checking two additional locations that can also accumulate significant storage:

• ~/.dropbox: Dropbox's configuration and metadata folder. Usually small (under 200 MB), but worth noting. Do not delete this folder; it contains your account credentials and sync state.
• ~/Library/Logs/Dropbox/: Log files written by the Dropbox desktop client. These are generally small but can be cleared if you are doing a thorough cleanup.
• Smart Sync offline copies: If you have marked files for offline access via Smart Sync, those files are stored in your main Dropbox folder and count against your disk. Review them in Dropbox preferences under Sync > Smart Sync.

The .dropbox.cache folder is almost always the largest single contributor, but combining all of the above gives you a complete picture of Dropbox's footprint on your Mac.

Preventing the Cache from Bloating Again

There is no setting to disable the Dropbox cache entirely, but a few habits keep it manageable:

• Use Smart Sync in online-only mode for large folders you rarely access. Files that are not stored locally produce less cache churn.
• Avoid keeping very large files (multi-GB video exports, virtual machine snapshots) in an actively syncing Dropbox folder. Move them to a non-synced location or to a dedicated cloud storage service designed for large assets.
• Clear the cache after major batch operations: after a big upload session, after a bulk move or rename, or after resolving many sync conflicts.
• Run a disk audit monthly to catch accumulation before it becomes a problem.

The Dropbox cache on Mac is a normal part of how the client keeps sync fast and reliable. Knowing exactly where the .dropbox.cache folder lives and how to clear it safely means you stay in control of your disk space without disrupting your workflow.