How to Remove Database Files From Your Computer When you save the document, the website uses space on your computer to store your document as a database. You can use some websites to create and edit documents that are saved on your computer – for example, a travel log about your latest vacation. In a support document published in the spring of 2017, Apple explains:

It also allows the developer to limit the data set accessible to SQL over the internet. This allows website developers to keep user-generated and user-consumed data on the user's computer and transfer the processing load from the server to the user's CPU. The last option reduces server load by replacing server-side programs with client-side scripts, and this enables them to even store large amounts of structured data locally using an SQL-compatible JavaScript database. What Are Those Database FilesĪs Apple explains to developers looking to launch websites, there are three independent components of the HTML5 client-side storage in Safari: the offline application cache, key-value storage and JavaScript database storage. Mac optimization apps are very helpful for doing the cookie cleaning (alongside any browsing history) but they fail to wipe away all the data left behind on your computer, such as database files from websites stored on your Mac.

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