In case you were wondering, the qlmanage tool lets you use Quick Look from the command line and can do much more than just reset and disable Quick Look cache. You can disable Quick Look cache if you really want to with ‘qlmanage -r disablecache’ but that’s not recommended for most Mac users. Of course, using Quick Look again will start to generate a new cache. For example, I had a 78mb thumbnails.data cache file from Quick Look and using ‘qlmanage -r cache’ dumped that entire cache file to reset it at zero bytes. The size of the Quick Look cache will vary depending on a particular Mac, the files contained on the drive, individual Quick Look usage, and other specifics that will vary from user to user. The command when executed properly looks like the following, with a simple report:įittingly, the QuickLook thumbnail cache resets quickly. Hit Return to clear the Quick Look caches.
Enter the following command syntax exactly:.Open the “Terminal” application, found in /Applications/Utilities/ on the Mac.This process of clearing the Quick Look cache data is as follows:
This is probably obvious, but if you don’t have a particular reason to clear your Quick Look cache, there is no benefit in doing so. Additionally, those same Quick Look caches and thumbnail previews can pose some data leaking risk which is still an issue, so some high-security and privacy minded individuals may appreciate manually emptying their Quick Look caches from a Mac if they’re concerned about it.
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