Cache is temporary data your computer and web browser store to make things load faster. Over time, clearing it can free up space, resolve slow performance, and improve privacy. The steps differ depending on what you're clearing—and which device or browser you use.
Your browser and computer automatically save copies of websites, images, and files you visit. This cache lets pages load quicker the next time because your device doesn't have to download everything fresh. That's helpful most of the time.
But cached data can pile up. Old files may cause glitches, consume storage space, or keep outdated versions of sites from displaying correctly. Clearing cache also removes records of where you've browsed—useful if you share a device or want a privacy reset.
The trade-off: after clearing cache, some websites may load slightly slower on your next visit since your browser has to fetch everything again.
On Mac:
On iPhone:
Your operating system also stores temporary files separate from your browser.
Alternatively, use the Disk Cleanup tool:
Clear cache if:
You don't need to clear cache if:
The right time to clear cache depends on:
Many people choose a middle ground: clear cache every few months, or clear it for specific websites when trouble occurs, rather than wiping everything. Some browsers offer settings to clear cache automatically when you close the browser—a hands-off option if privacy is your main goal.
Whatever you choose, clearing cache is safe and reversible. Your passwords, bookmarks, and saved information remain unless you specifically select those options during the clearing process.
