A cache is a special storage space for temporary files that makes a device, browser, or app run faster and more efficiently. After opening an app or website for the first time, a cache stashes files, images, and other pertinent data on your device.

Is it safe to delete cache files?

Is it safe to clear an app's cache? In short, yes. Since the cache stores non-essential files (that is, files that are not 100% needed for the correct operation of the app), deleting it should not aversely affect the functionality of the app. ... Browsers like Chrome and Firefox also like to use a lot of cache.

What does clearing cache files do?

Your apps and web browser store bits of information to speed up your experience using them. Over time, your phone may collect a lot of files you don't really need. You can clear out the files to free up a little storage space on your device. Clearing cache can also help with website behavior issues.