Software tower · floor

How to clear cache on Mac, and what goes with it

Safari has two commands for this, in two different places, and they do different jobs. Choosing between them is most of the question — and one of them quietly removes something that is not history at all.

The short version of the difference: Clear History is about time — you pick how far back and Safari removes a defined list of things from that period. Manage Website Data is about sites — you can see “all the websites that have stored cookies and website data on your Mac” and remove them individually or all at once.

So a single misbehaving site is a Manage Website Data job, and a general clear-out is a Clear History one. Reaching for the wrong one is why this sometimes appears not to work.

Two of those eight are worth stopping on, because they are not what anybody means by history. Clearing history forgets which websites asked to use your location and which asked to send you notifications. That is not a bad thing — but it means sites you had already answered will ask again, and a clear-out is therefore also a reset of those small permissions.

The downloads line is the other one to read carefully. Safari removes “the list of items you downloaded” — and Apple adds, in the same breath, that the downloaded files aren’t removed. The record goes; the files stay where they were saved.

Between those two boxes sits the practical advice this page can honestly give. Manage Website Data with a site selected is the small, reversible-in-practice version — one site signs you out, the rest carry on. Remove All is the large version, and Apple names its two consequences rather than leaving them to be discovered.

The limit Apple states plainly. “Clearing your browsing history in Safari doesn’t clear any browsing histories kept independently by websites you visited.” That is the sentence that separates tidying your own machine from disappearing. What you removed was your copy. The record a site kept of a visit, an account, or a purchase is on their side, unaffected by anything in this menu.

What this page will not tell you is how to clear system or application caches outside Safari. Apple documents the browser; the folders elsewhere on a Mac are not something it tells people to empty, and a page that sent you into them on the strength of nothing would be inventing both the instruction and the reason.

Nor will it claim that clearing anything here frees up meaningful disk space. Apple describes these commands in terms of privacy and website behaviour, not storage, and the storage claim is somebody else’s to make.

The floors below take it three ways: the two commands, what leaves the machine when you use them, and the same question on the other Apple device.

What this tower will not do

It will not send you into system folders to delete caches. Apple documents the browser, and an instruction to empty anything else would be invented along with its justification.

It will not promise disk space. Apple describes these commands in terms of privacy and website behaviour, and says nothing about storage.

And it will not suggest clearing history removes you from a website’s own records. Apple states the opposite in a single sentence, quoted above in full. What holds instead is simple: the two routes — History → Clear History with its time range, and Safari → Settings → Privacy → Manage Website Data with Remove and Remove All — the published list of what clearing history removes including the note that downloaded files are not removed, the statement that browsing history is removed from all devices where iCloud is set up for Safari, the warnings that removing data may sign you out of websites or change website behaviour and may change or remove data in other apps, and the note that clearing history does not clear histories kept independently by websites are quoted from Apple’s Safari User Guide, listed below.